* [PATCH 0/4] zsmalloc: make zspage chain size configurable
@ 2023-01-05 5:35 Sergey Senozhatsky
2023-01-05 5:35 ` [PATCH 1/4] zsmalloc: rework zspage chain size selection Sergey Senozhatsky
` (3 more replies)
0 siblings, 4 replies; 7+ messages in thread
From: Sergey Senozhatsky @ 2023-01-05 5:35 UTC (permalink / raw)
To: Minchan Kim, Andrew Morton; +Cc: linux-kernel, linux-mm, Sergey Senozhatsky
Hi,
This turns hard coded limit on maximum physical pages
per-zspage into a config option. It also increases the default
limit from 4 to 8.
Sergey Senozhatsky (4):
zsmalloc: rework zspage chain size selection
zsmalloc: skip chain size calculation for pow_of_2 classes
zsmalloc: make zspage chain size configurable
zsmalloc: set default zspage chain size to 8
.../admin-guide/blockdev/zsmalloc.rst | 157 ++++++++++++++++++
mm/Kconfig | 19 +++
mm/zsmalloc.c | 72 +++-----
3 files changed, 201 insertions(+), 47 deletions(-)
create mode 100644 Documentation/admin-guide/blockdev/zsmalloc.rst
--
2.39.0.314.g84b9a713c41-goog
^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH 1/4] zsmalloc: rework zspage chain size selection 2023-01-05 5:35 [PATCH 0/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky @ 2023-01-05 5:35 ` Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 2/4] zsmalloc: skip chain size calculation for pow_of_2 classes Sergey Senozhatsky ` (2 subsequent siblings) 3 siblings, 0 replies; 7+ messages in thread From: Sergey Senozhatsky @ 2023-01-05 5:35 UTC (permalink / raw) To: Minchan Kim, Andrew Morton; +Cc: linux-kernel, linux-mm, Sergey Senozhatsky Computers are bad at division. We currently decide the best zspage chain size (max number of physical pages per-zspage) by looking at a `used percentage` value. This is not enough as we lose precision during usage percentage calculations For example, let's look at size class 208: pages per zspage wasted bytes used% 1 144 96 2 80 99 3 16 99 4 160 99 Current algorithm will select 2 page per zspage configuration, as it's the first one to reach 99%. However, 3 pages per zspage waste less memory. Change algorithm and select zspage configuration that has lowest wasted value. Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> --- mm/zsmalloc.c | 56 +++++++++++++++++---------------------------------- 1 file changed, 19 insertions(+), 37 deletions(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 9445bee6b014..959126e708a3 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -802,42 +802,6 @@ static enum fullness_group fix_fullness_group(struct size_class *class, return newfg; } -/* - * We have to decide on how many pages to link together - * to form a zspage for each size class. This is important - * to reduce wastage due to unusable space left at end of - * each zspage which is given as: - * wastage = Zp % class_size - * usage = Zp - wastage - * where Zp = zspage size = k * PAGE_SIZE where k = 1, 2, ... - * - * For example, for size class of 3/8 * PAGE_SIZE, we should - * link together 3 PAGE_SIZE sized pages to form a zspage - * since then we can perfectly fit in 8 such objects. - */ -static int get_pages_per_zspage(int class_size) -{ - int i, max_usedpc = 0; - /* zspage order which gives maximum used size per KB */ - int max_usedpc_order = 1; - - for (i = 1; i <= ZS_MAX_PAGES_PER_ZSPAGE; i++) { - int zspage_size; - int waste, usedpc; - - zspage_size = i * PAGE_SIZE; - waste = zspage_size % class_size; - usedpc = (zspage_size - waste) * 100 / zspage_size; - - if (usedpc > max_usedpc) { - max_usedpc = usedpc; - max_usedpc_order = i; - } - } - - return max_usedpc_order; -} - static struct zspage *get_zspage(struct page *page) { struct zspage *zspage = (struct zspage *)page_private(page); @@ -2321,6 +2285,24 @@ static int zs_register_shrinker(struct zs_pool *pool) pool->name); } +static int calculate_zspage_chain_size(int class_size) +{ + int i, min_waste = INT_MAX; + int chain_size = 1; + + for (i = 1; i <= ZS_MAX_PAGES_PER_ZSPAGE; i++) { + int waste; + + waste = (i * PAGE_SIZE) % class_size; + if (waste < min_waste) { + min_waste = waste; + chain_size = i; + } + } + + return chain_size; +} + /** * zs_create_pool - Creates an allocation pool to work from. * @name: pool name to be created @@ -2365,7 +2347,7 @@ struct zs_pool *zs_create_pool(const char *name) size = ZS_MIN_ALLOC_SIZE + i * ZS_SIZE_CLASS_DELTA; if (size > ZS_MAX_ALLOC_SIZE) size = ZS_MAX_ALLOC_SIZE; - pages_per_zspage = get_pages_per_zspage(size); + pages_per_zspage = calculate_zspage_chain_size(size); objs_per_zspage = pages_per_zspage * PAGE_SIZE / size; /* -- 2.39.0.314.g84b9a713c41-goog ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 2/4] zsmalloc: skip chain size calculation for pow_of_2 classes 2023-01-05 5:35 [PATCH 0/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 1/4] zsmalloc: rework zspage chain size selection Sergey Senozhatsky @ 2023-01-05 5:35 ` Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 3/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 4/4] zsmalloc: set default zspage chain size to 8 Sergey Senozhatsky 3 siblings, 0 replies; 7+ messages in thread From: Sergey Senozhatsky @ 2023-01-05 5:35 UTC (permalink / raw) To: Minchan Kim, Andrew Morton; +Cc: linux-kernel, linux-mm, Sergey Senozhatsky If a class size is power of 2 then it wastes no memory and the best configuration is 1 physical page per-zspage. Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> --- mm/zsmalloc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 959126e708a3..9a0f1963b803 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -2290,6 +2290,9 @@ static int calculate_zspage_chain_size(int class_size) int i, min_waste = INT_MAX; int chain_size = 1; + if (is_power_of_2(class_size)) + return chain_size; + for (i = 1; i <= ZS_MAX_PAGES_PER_ZSPAGE; i++) { int waste; -- 2.39.0.314.g84b9a713c41-goog ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 3/4] zsmalloc: make zspage chain size configurable 2023-01-05 5:35 [PATCH 0/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 1/4] zsmalloc: rework zspage chain size selection Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 2/4] zsmalloc: skip chain size calculation for pow_of_2 classes Sergey Senozhatsky @ 2023-01-05 5:35 ` Sergey Senozhatsky 2023-01-05 19:49 ` kernel test robot 2023-01-05 5:35 ` [PATCH 4/4] zsmalloc: set default zspage chain size to 8 Sergey Senozhatsky 3 siblings, 1 reply; 7+ messages in thread From: Sergey Senozhatsky @ 2023-01-05 5:35 UTC (permalink / raw) To: Minchan Kim, Andrew Morton; +Cc: linux-kernel, linux-mm, Sergey Senozhatsky Remove hard coded limit on the maximum number of physical pages per-zspage. This will allow tuning of zsmalloc pool as zspage chain size changes `pages per-zspage` and `objects per-zspage` characteristics of size classes which also affects size classes clustering (the way size classes are merged). Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> --- .../admin-guide/blockdev/zsmalloc.rst | 157 ++++++++++++++++++ mm/Kconfig | 19 +++ mm/zsmalloc.c | 15 +- 3 files changed, 180 insertions(+), 11 deletions(-) create mode 100644 Documentation/admin-guide/blockdev/zsmalloc.rst diff --git a/Documentation/admin-guide/blockdev/zsmalloc.rst b/Documentation/admin-guide/blockdev/zsmalloc.rst new file mode 100644 index 000000000000..2e238afb1b4b --- /dev/null +++ b/Documentation/admin-guide/blockdev/zsmalloc.rst @@ -0,0 +1,157 @@ +======================================== +zsmalloc allocator +======================================== + +Internals +--------- + +zsmalloc has 255 size classes. Size classes hold a number of zspages, each +zspage can consist of up to ZSMALLOC_CHAIN_SIZE physical (0 order) pages. +The exact (most optimal) zspage chain size is calculated for each size class +during zsmalloc pool creation (see calculate_zspage_chain_size()). + +As a reasonable optimization, zsmalloc merges size classes that have +similar characteristics: number of pages per zspage and number of +objects zspage can store. + +For example, let's look at the following size classes::: + +class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable +.. + 94 1536 0 0 0 0 0 3 0 + 100 1632 0 0 0 0 0 2 0 +.. + +Size classes #95-99 are merged with size class #100. That is, each time +we store an object of size, say, 1568 bytes instead of using class #96 +we end up storing it in size class #100. Class #100 is for objects of +1632 bytes in size, hence every 1568 bytes object wastes 1632-1568 bytes. +Class #100 zspages consist of 2 physical pages and can hold 5 objects. +When we need to store, say, 13 objects of size 1568 we end up allocating +three zspages; in other words, 6 physical pages. + +However, if we'll look closer at size class #96 (which should hold objects +of size 1568 bytes) and trace calculate_zspage_chain_size()::: + + pages per zspage wasted bytes used% + 1 960 76 + 2 352 95 + 3 1312 89 + 4 704 95 + 5 96 99 + +We'd notice that the most optimal zspage configuration for this class is +when it consists of 5 physical pages. A 5 page class #96 configuration +would store 13 objects of size 1568 in a single zspage, allocating 5 physical +pages, as opposed to 6 physical pages that class #100 would allocate otherwise. + +A larger zspage chain size for class #96 also changes its key characteristics: +pages per-zspage and objects per-zspage. As a result we merge less classes. In +other words classes are grouped in a more compact way, which decreases memory +wastage. + +Let's take a closer look at the bottom of /sys/kernel/debug/zsmalloc/zramX/classes::: + +class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable +.. + 202 3264 0 0 0 0 0 4 0 + 254 4096 0 0 0 0 0 1 0 +.. + +For exactly same reason - maximum 4 pages per zspage - the last non-huge +size class is #202, which stores objects of size 3264 bytes. Any object +larger than 3264 bytes, hence, is considered to be huge and lands in size +class #254, which uses a whole physical page to store every object (objects +in huge classes don't share physical pages). + +Another consequence of larger zspages chain sizes is that we move the huge +size class watermark up and as a result have less huge classes and store +large objects in a more compact way. + +For zspage chain size of 8, huge class watermark becomes 3632 bytes::: + +class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable +.. + 202 3264 0 0 0 0 0 4 0 + 211 3408 0 0 0 0 0 5 0 + 217 3504 0 0 0 0 0 6 0 + 222 3584 0 0 0 0 0 7 0 + 225 3632 0 0 0 0 0 8 0 + 254 4096 0 0 0 0 0 1 0 +.. + +For zspage chain size of 16, huge class watermark becomes 3840 bytes::: + +class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable +.. + 202 3264 0 0 0 0 0 4 0 + 206 3328 0 0 0 0 0 13 0 + 207 3344 0 0 0 0 0 9 0 + 208 3360 0 0 0 0 0 14 0 + 211 3408 0 0 0 0 0 5 0 + 212 3424 0 0 0 0 0 16 0 + 214 3456 0 0 0 0 0 11 0 + 217 3504 0 0 0 0 0 6 0 + 219 3536 0 0 0 0 0 13 0 + 222 3584 0 0 0 0 0 7 0 + 223 3600 0 0 0 0 0 15 0 + 225 3632 0 0 0 0 0 8 0 + 228 3680 0 0 0 0 0 9 0 + 230 3712 0 0 0 0 0 10 0 + 232 3744 0 0 0 0 0 11 0 + 234 3776 0 0 0 0 0 12 0 + 235 3792 0 0 0 0 0 13 0 + 236 3808 0 0 0 0 0 14 0 + 238 3840 0 0 0 0 0 15 0 + 254 4096 0 0 0 0 0 1 0 +.. + +Overall the combined zspage chain size effect on zsmalloc pool configuration::: + +pages per zspage number of size classes (clusters) huge size class watermark + 4 69 3264 + 5 86 3408 + 6 93 3504 + 7 112 3584 + 8 123 3632 + 9 140 3680 + 10 143 3712 + 11 159 3744 + 12 164 3776 + 13 180 3792 + 14 183 3808 + 15 188 3840 + 16 191 3840 + +A synthetic test::: + +CONFIG_ZSMALLOC_CHAIN_SIZE=4 + +zsmalloc classes stats + class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable + .. + Total 13 51 413836 412973 159955 3 + +zram mm_stat +1691783168 628083717 655175680 0 655175680 60 0 34048 34049 + +CONFIG_ZSMALLOC_CHAIN_SIZE=8 + +zsmalloc classes stats + class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable + .. + Total 18 87 414852 412978 156666 0 + +zram mm_stat +1691803648 627793930 641703936 0 641703936 60 0 33591 33591 + +Note that for the same amount of data zsmalloc uses less physical pages: down +to 156666 from 159955, and maximum zsmalloc pool memory usage also went down +from 655175680 to 641703936 bytes. + +The obvious downside of larger zspage chains is that some zspages require +more physical pages, which can, in theory, increase system memory pressure +in cases when zspool suffers from heavy internal fragmentation and zspool +compaction cannot relocate objects and release some zspages. In such cases +users are advised to lower zspage chain size limit (CONFIG_ZSMALLOC_CHAIN_SIZE +option). diff --git a/mm/Kconfig b/mm/Kconfig index ff7b209dec05..995a7c4083c2 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -191,6 +191,25 @@ config ZSMALLOC_STAT information to userspace via debugfs. If unsure, say N. +config ZSMALLOC_CHAIN_SIZE + int "Maximum number of physical pages per-zspage" + default 4 + range 1 16 + depends on ZSMALLOC + help + Each zmalloc page (zspage) can consist of 1 or more physical + (0 order) non contiguous pages. This option sets the upper + (hard) limit on that number. + + The exact zspage chain size is calculated for each size class + individually during pool initialisation. Changing this results + in different size classes characteristics (pages per-zspage, + objects per-zspage) which in turn results in different pool + configurations: zsmalloc merges size classes that share key + characteristics. + + Please read zsmalloc documentation for more details. + menu "SLAB allocator options" choice diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 9a0f1963b803..34ba97d1175f 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -73,13 +73,6 @@ */ #define ZS_ALIGN 8 -/* - * A single 'zspage' is composed of up to 2^N discontiguous 0-order (single) - * pages. ZS_MAX_ZSPAGE_ORDER defines upper limit on N. - */ -#define ZS_MAX_ZSPAGE_ORDER 2 -#define ZS_MAX_PAGES_PER_ZSPAGE (_AC(1, UL) << ZS_MAX_ZSPAGE_ORDER) - #define ZS_HANDLE_SIZE (sizeof(unsigned long)) /* @@ -126,7 +119,7 @@ #define MAX(a, b) ((a) >= (b) ? (a) : (b)) /* ZS_MIN_ALLOC_SIZE must be multiple of ZS_ALIGN */ #define ZS_MIN_ALLOC_SIZE \ - MAX(32, (ZS_MAX_PAGES_PER_ZSPAGE << PAGE_SHIFT >> OBJ_INDEX_BITS)) + MAX(32, (CONFIG_ZSMALLOC_CHAIN_SIZE << PAGE_SHIFT >> OBJ_INDEX_BITS)) /* each chunk includes extra space to keep handle */ #define ZS_MAX_ALLOC_SIZE PAGE_SIZE @@ -1078,7 +1071,7 @@ static struct zspage *alloc_zspage(struct zs_pool *pool, gfp_t gfp) { int i; - struct page *pages[ZS_MAX_PAGES_PER_ZSPAGE]; + struct page *pages[CONFIG_ZSMALLOC_CHAIN_SIZE]; struct zspage *zspage = cache_alloc_zspage(pool, gfp); if (!zspage) @@ -1910,7 +1903,7 @@ static void replace_sub_page(struct size_class *class, struct zspage *zspage, struct page *newpage, struct page *oldpage) { struct page *page; - struct page *pages[ZS_MAX_PAGES_PER_ZSPAGE] = {NULL, }; + struct page *pages[CONFIG_ZSMALLOC_CHAIN_SIZE] = {NULL, }; int idx = 0; page = get_first_page(zspage); @@ -2293,7 +2286,7 @@ static int calculate_zspage_chain_size(int class_size) if (is_power_of_2(class_size)) return chain_size; - for (i = 1; i <= ZS_MAX_PAGES_PER_ZSPAGE; i++) { + for (i = 1; i <= CONFIG_ZSMALLOC_CHAIN_SIZE; i++) { int waste; waste = (i * PAGE_SIZE) % class_size; -- 2.39.0.314.g84b9a713c41-goog ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 3/4] zsmalloc: make zspage chain size configurable 2023-01-05 5:35 ` [PATCH 3/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky @ 2023-01-05 19:49 ` kernel test robot 2023-01-06 2:40 ` Sergey Senozhatsky 0 siblings, 1 reply; 7+ messages in thread From: kernel test robot @ 2023-01-05 19:49 UTC (permalink / raw) To: Sergey Senozhatsky, Minchan Kim, Andrew Morton Cc: oe-kbuild-all, Linux Memory Management List, linux-kernel, Sergey Senozhatsky [-- Attachment #1: Type: text/plain, Size: 2322 bytes --] Hi Sergey, I love your patch! Perhaps something to improve: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.2-rc2 next-20230105] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Sergey-Senozhatsky/zsmalloc-rework-zspage-chain-size-selection/20230105-133630 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230105053510.1819862-4-senozhatsky%40chromium.org patch subject: [PATCH 3/4] zsmalloc: make zspage chain size configurable reproduce: # https://github.com/intel-lab-lkp/linux/commit/8bf0631808c5f8a1dc57932bc8d744f8206ea787 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Sergey-Senozhatsky/zsmalloc-rework-zspage-chain-size-selection/20230105-133630 git checkout 8bf0631808c5f8a1dc57932bc8d744f8206ea787 make menuconfig # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS make htmldocs If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com> All warnings (new ones prefixed by >>): >> Documentation/admin-guide/blockdev/zsmalloc.rst:19: WARNING: Literal block expected; none found. >> Documentation/admin-guide/blockdev/zsmalloc.rst:21: WARNING: Unexpected indentation. >> Documentation/admin-guide/blockdev/zsmalloc.rst:22: WARNING: Block quote ends without a blank line; unexpected unindent. >> Documentation/admin-guide/blockdev/zsmalloc.rst: WARNING: document isn't included in any toctree vim +19 Documentation/admin-guide/blockdev/zsmalloc.rst 18 > 19 class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable 20 .. > 21 94 1536 0 0 0 0 0 3 0 > 22 100 1632 0 0 0 0 0 2 0 23 .. 24 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests [-- Attachment #2: config --] [-- Type: text/plain, Size: 39372 bytes --] # # Automatically generated file; DO NOT EDIT. # Linux/x86_64 6.2.0-rc1 Kernel Configuration # CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.3.0-8) 11.3.0" CONFIG_CC_IS_GCC=y CONFIG_GCC_VERSION=110300 CONFIG_CLANG_VERSION=0 CONFIG_AS_IS_GNU=y CONFIG_AS_VERSION=23900 CONFIG_LD_IS_BFD=y CONFIG_LD_VERSION=23900 CONFIG_LLD_VERSION=0 CONFIG_CC_CAN_LINK=y CONFIG_CC_CAN_LINK_STATIC=y CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y CONFIG_CC_HAS_ASM_INLINE=y CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y CONFIG_PAHOLE_VERSION=123 CONFIG_IRQ_WORK=y CONFIG_BUILDTIME_TABLE_SORT=y CONFIG_THREAD_INFO_IN_TASK=y # # General setup # CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_COMPILE_TEST=y # CONFIG_WERROR is not set CONFIG_LOCALVERSION="" CONFIG_BUILD_SALT="" CONFIG_HAVE_KERNEL_GZIP=y CONFIG_HAVE_KERNEL_BZIP2=y CONFIG_HAVE_KERNEL_LZMA=y CONFIG_HAVE_KERNEL_XZ=y CONFIG_HAVE_KERNEL_LZO=y CONFIG_HAVE_KERNEL_LZ4=y CONFIG_HAVE_KERNEL_ZSTD=y CONFIG_KERNEL_GZIP=y # CONFIG_KERNEL_BZIP2 is not set # CONFIG_KERNEL_LZMA is not set # CONFIG_KERNEL_XZ is not set # CONFIG_KERNEL_LZO is not set # CONFIG_KERNEL_LZ4 is not set # CONFIG_KERNEL_ZSTD is not set CONFIG_DEFAULT_INIT="" CONFIG_DEFAULT_HOSTNAME="(none)" # CONFIG_SYSVIPC is not set # CONFIG_WATCH_QUEUE is not set # CONFIG_CROSS_MEMORY_ATTACH is not set # CONFIG_USELIB is not set CONFIG_HAVE_ARCH_AUDITSYSCALL=y # # IRQ subsystem # CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_IRQ_SHOW=y CONFIG_HARDIRQS_SW_RESEND=y CONFIG_IRQ_DOMAIN=y CONFIG_IRQ_DOMAIN_HIERARCHY=y CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y CONFIG_GENERIC_IRQ_RESERVATION_MODE=y CONFIG_IRQ_FORCED_THREADING=y CONFIG_SPARSE_IRQ=y # end of IRQ subsystem CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_ARCH_CLOCKSOURCE_INIT=y CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y # # Timers subsystem # CONFIG_HZ_PERIODIC=y # CONFIG_NO_HZ_IDLE is not set # CONFIG_NO_HZ is not set # CONFIG_HIGH_RES_TIMERS is not set CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=100 # end of Timers subsystem CONFIG_HAVE_EBPF_JIT=y CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y # # BPF subsystem # # CONFIG_BPF_SYSCALL is not set # end of BPF subsystem CONFIG_PREEMPT_NONE_BUILD=y CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set # CONFIG_PREEMPT_DYNAMIC is not set # # CPU/Task time and stats accounting # CONFIG_TICK_CPU_ACCOUNTING=y # CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set # CONFIG_IRQ_TIME_ACCOUNTING is not set # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_PSI is not set # end of CPU/Task time and stats accounting CONFIG_CPU_ISOLATION=y # # RCU Subsystem # CONFIG_TINY_RCU=y # CONFIG_RCU_EXPERT is not set CONFIG_SRCU=y CONFIG_TINY_SRCU=y # end of RCU Subsystem # CONFIG_IKCONFIG is not set # CONFIG_IKHEADERS is not set CONFIG_LOG_BUF_SHIFT=17 CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13 CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y # # Scheduler features # # end of Scheduler features CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y CONFIG_CC_HAS_INT128=y CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5" CONFIG_GCC12_NO_ARRAY_BOUNDS=y CONFIG_ARCH_SUPPORTS_INT128=y # CONFIG_CGROUPS is not set CONFIG_NAMESPACES=y # CONFIG_UTS_NS is not set # CONFIG_TIME_NS is not set # CONFIG_USER_NS is not set # CONFIG_PID_NS is not set # CONFIG_CHECKPOINT_RESTORE is not set # CONFIG_SCHED_AUTOGROUP is not set # CONFIG_SYSFS_DEPRECATED is not set # CONFIG_RELAY is not set # CONFIG_BLK_DEV_INITRD is not set # CONFIG_BOOT_CONFIG is not set # CONFIG_INITRAMFS_PRESERVE_MTIME is not set CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_LD_ORPHAN_WARN=y CONFIG_LD_ORPHAN_WARN_LEVEL="warn" CONFIG_SYSCTL=y CONFIG_SYSCTL_EXCEPTION_TRACE=y CONFIG_HAVE_PCSPKR_PLATFORM=y # CONFIG_EXPERT is not set CONFIG_MULTIUSER=y CONFIG_SGETMASK_SYSCALL=y CONFIG_SYSFS_SYSCALL=y CONFIG_FHANDLE=y CONFIG_POSIX_TIMERS=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_PCSPKR_PLATFORM=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_FUTEX_PI=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y CONFIG_IO_URING=y CONFIG_ADVISE_SYSCALLS=y CONFIG_MEMBARRIER=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_SELFTEST is not set CONFIG_KALLSYMS_BASE_RELATIVE=y CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y CONFIG_RSEQ=y # CONFIG_EMBEDDED is not set CONFIG_HAVE_PERF_EVENTS=y # # Kernel Performance Events And Counters # CONFIG_PERF_EVENTS=y # end of Kernel Performance Events And Counters # CONFIG_PROFILING is not set # end of General setup CONFIG_64BIT=y CONFIG_X86_64=y CONFIG_X86=y CONFIG_INSTRUCTION_DECODER=y CONFIG_OUTPUT_FORMAT="elf64-x86-64" CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_MMU=y CONFIG_ARCH_MMAP_RND_BITS_MIN=28 CONFIG_ARCH_MMAP_RND_BITS_MAX=32 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16 CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_ARCH_HAS_CPU_RELAX=y CONFIG_ARCH_HIBERNATION_POSSIBLE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_AUDIT_ARCH=y CONFIG_ARCH_SUPPORTS_UPROBES=y CONFIG_FIX_EARLYCON_MEM=y CONFIG_PGTABLE_LEVELS=4 CONFIG_CC_HAS_SANE_STACKPROTECTOR=y # # Processor type and features # # CONFIG_SMP is not set CONFIG_X86_FEATURE_NAMES=y CONFIG_X86_MPPARSE=y # CONFIG_GOLDFISH is not set # CONFIG_X86_CPU_RESCTRL is not set # CONFIG_X86_EXTENDED_PLATFORM is not set # CONFIG_SCHED_OMIT_FRAME_POINTER is not set # CONFIG_HYPERVISOR_GUEST is not set # CONFIG_MK8 is not set # CONFIG_MPSC is not set # CONFIG_MCORE2 is not set # CONFIG_MATOM is not set CONFIG_GENERIC_CPU=y CONFIG_X86_INTERNODE_CACHE_SHIFT=6 CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_TSC=y CONFIG_X86_CMPXCHG64=y CONFIG_X86_CMOV=y CONFIG_X86_MINIMUM_CPU_FAMILY=64 CONFIG_X86_DEBUGCTLMSR=y CONFIG_IA32_FEAT_CTL=y CONFIG_X86_VMX_FEATURE_NAMES=y CONFIG_CPU_SUP_INTEL=y CONFIG_CPU_SUP_AMD=y CONFIG_CPU_SUP_HYGON=y CONFIG_CPU_SUP_CENTAUR=y CONFIG_CPU_SUP_ZHAOXIN=y CONFIG_HPET_TIMER=y CONFIG_DMI=y CONFIG_NR_CPUS_RANGE_BEGIN=1 CONFIG_NR_CPUS_RANGE_END=1 CONFIG_NR_CPUS_DEFAULT=1 CONFIG_NR_CPUS=1 CONFIG_UP_LATE_INIT=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y # CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set # CONFIG_X86_MCE is not set # # Performance monitoring # # CONFIG_PERF_EVENTS_AMD_POWER is not set # CONFIG_PERF_EVENTS_AMD_UNCORE is not set # CONFIG_PERF_EVENTS_AMD_BRS is not set # end of Performance monitoring CONFIG_X86_16BIT=y CONFIG_X86_ESPFIX64=y CONFIG_X86_VSYSCALL_EMULATION=y # CONFIG_X86_IOPL_IOPERM is not set # CONFIG_MICROCODE is not set # CONFIG_X86_MSR is not set # CONFIG_X86_CPUID is not set # CONFIG_X86_5LEVEL is not set CONFIG_X86_DIRECT_GBPAGES=y # CONFIG_AMD_MEM_ENCRYPT is not set CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_DEFAULT=y CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 # CONFIG_X86_CHECK_BIOS_CORRUPTION is not set CONFIG_MTRR=y # CONFIG_MTRR_SANITIZER is not set CONFIG_X86_PAT=y CONFIG_ARCH_USES_PG_UNCACHED=y CONFIG_X86_UMIP=y CONFIG_CC_HAS_IBT=y # CONFIG_X86_KERNEL_IBT is not set # CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS is not set CONFIG_X86_INTEL_TSX_MODE_OFF=y # CONFIG_X86_INTEL_TSX_MODE_ON is not set # CONFIG_X86_INTEL_TSX_MODE_AUTO is not set # CONFIG_HZ_100 is not set CONFIG_HZ_250=y # CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 # CONFIG_KEXEC is not set # CONFIG_CRASH_DUMP is not set CONFIG_PHYSICAL_START=0x1000000 # CONFIG_RELOCATABLE is not set CONFIG_PHYSICAL_ALIGN=0x200000 CONFIG_LEGACY_VSYSCALL_XONLY=y # CONFIG_LEGACY_VSYSCALL_NONE is not set # CONFIG_CMDLINE_BOOL is not set CONFIG_MODIFY_LDT_SYSCALL=y # CONFIG_STRICT_SIGALTSTACK_SIZE is not set CONFIG_HAVE_LIVEPATCH=y # end of Processor type and features CONFIG_CC_HAS_SLS=y CONFIG_CC_HAS_RETURN_THUNK=y CONFIG_CC_HAS_ENTRY_PADDING=y CONFIG_FUNCTION_PADDING_CFI=11 CONFIG_FUNCTION_PADDING_BYTES=16 # CONFIG_SPECULATION_MITIGATIONS is not set CONFIG_ARCH_HAS_ADD_PAGES=y CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y # # Power management and ACPI options # # CONFIG_SUSPEND is not set # CONFIG_PM is not set CONFIG_ARCH_SUPPORTS_ACPI=y # CONFIG_ACPI is not set # # CPU Frequency scaling # # CONFIG_CPU_FREQ is not set # end of CPU Frequency scaling # # CPU Idle # # CONFIG_CPU_IDLE is not set # end of CPU Idle # end of Power management and ACPI options # # Bus options (PCI etc.) # CONFIG_ISA_DMA_API=y # end of Bus options (PCI etc.) # # Binary Emulations # # CONFIG_IA32_EMULATION is not set # CONFIG_X86_X32_ABI is not set # end of Binary Emulations CONFIG_HAVE_KVM=y # CONFIG_VIRTUALIZATION is not set CONFIG_AS_AVX512=y CONFIG_AS_SHA1_NI=y CONFIG_AS_SHA256_NI=y CONFIG_AS_TPAUSE=y # # General architecture-dependent options # CONFIG_GENERIC_ENTRY=y # CONFIG_JUMP_LABEL is not set # CONFIG_STATIC_CALL_SELFTEST is not set CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y CONFIG_ARCH_USE_BUILTIN_BSWAP=y CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_OPTPROBES=y CONFIG_HAVE_KPROBES_ON_FTRACE=y CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y CONFIG_HAVE_NMI=y CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_DMA_CONTIGUOUS=y CONFIG_GENERIC_SMP_IDLE_THREAD=y CONFIG_ARCH_HAS_FORTIFY_SOURCE=y CONFIG_ARCH_HAS_SET_MEMORY=y CONFIG_ARCH_HAS_SET_DIRECT_MAP=y CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y CONFIG_ARCH_WANTS_NO_INSTR=y CONFIG_HAVE_ASM_MODVERSIONS=y CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y CONFIG_HAVE_RSEQ=y CONFIG_HAVE_RUST=y CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y CONFIG_HAVE_HW_BREAKPOINT=y CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y CONFIG_HAVE_USER_RETURN_NOTIFIER=y CONFIG_HAVE_PERF_EVENTS_NMI=y CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y CONFIG_HAVE_PERF_REGS=y CONFIG_HAVE_PERF_USER_STACK_DUMP=y CONFIG_HAVE_ARCH_JUMP_LABEL=y CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y CONFIG_MMU_GATHER_MERGE_VMAS=y CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS=y CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y CONFIG_HAVE_CMPXCHG_LOCAL=y CONFIG_HAVE_CMPXCHG_DOUBLE=y CONFIG_HAVE_ARCH_SECCOMP=y CONFIG_HAVE_ARCH_SECCOMP_FILTER=y # CONFIG_SECCOMP is not set CONFIG_HAVE_ARCH_STACKLEAK=y CONFIG_HAVE_STACKPROTECTOR=y # CONFIG_STACKPROTECTOR is not set CONFIG_ARCH_SUPPORTS_LTO_CLANG=y CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y CONFIG_LTO_NONE=y CONFIG_ARCH_SUPPORTS_CFI_CLANG=y CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y CONFIG_HAVE_CONTEXT_TRACKING_USER=y CONFIG_HAVE_CONTEXT_TRACKING_USER_OFFSTACK=y CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y CONFIG_HAVE_MOVE_PUD=y CONFIG_HAVE_MOVE_PMD=y CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y CONFIG_HAVE_ARCH_HUGE_VMAP=y CONFIG_HAVE_ARCH_HUGE_VMALLOC=y CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y CONFIG_HAVE_ARCH_SOFT_DIRTY=y CONFIG_HAVE_MOD_ARCH_SPECIFIC=y CONFIG_MODULES_USE_ELF_RELA=y CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y CONFIG_SOFTIRQ_ON_OWN_STACK=y CONFIG_ARCH_HAS_ELF_RANDOMIZE=y CONFIG_HAVE_ARCH_MMAP_RND_BITS=y CONFIG_HAVE_EXIT_THREAD=y CONFIG_ARCH_MMAP_RND_BITS=28 CONFIG_PAGE_SIZE_LESS_THAN_64KB=y CONFIG_PAGE_SIZE_LESS_THAN_256KB=y CONFIG_HAVE_OBJTOOL=y CONFIG_HAVE_JUMP_LABEL_HACK=y CONFIG_HAVE_NOINSTR_HACK=y CONFIG_HAVE_NOINSTR_VALIDATION=y CONFIG_HAVE_UACCESS_VALIDATION=y CONFIG_HAVE_STACK_VALIDATION=y CONFIG_HAVE_RELIABLE_STACKTRACE=y # CONFIG_COMPAT_32BIT_TIME is not set CONFIG_HAVE_ARCH_VMAP_STACK=y # CONFIG_VMAP_STACK is not set CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y CONFIG_RANDOMIZE_KSTACK_OFFSET=y # CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y CONFIG_STRICT_KERNEL_RWX=y CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y CONFIG_ARCH_HAS_MEM_ENCRYPT=y CONFIG_HAVE_STATIC_CALL=y CONFIG_HAVE_STATIC_CALL_INLINE=y CONFIG_HAVE_PREEMPT_DYNAMIC=y CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y CONFIG_ARCH_HAS_ELFCORE_COMPAT=y CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y CONFIG_DYNAMIC_SIGFRAME=y CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y # # GCOV-based kernel profiling # CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y # end of GCOV-based kernel profiling CONFIG_HAVE_GCC_PLUGINS=y # CONFIG_GCC_PLUGINS is not set CONFIG_FUNCTION_ALIGNMENT_4B=y CONFIG_FUNCTION_ALIGNMENT_16B=y CONFIG_FUNCTION_ALIGNMENT=16 # end of General architecture-dependent options CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y # CONFIG_BLOCK_LEGACY_AUTOLOAD is not set # CONFIG_BLK_DEV_BSGLIB is not set # CONFIG_BLK_DEV_INTEGRITY is not set # CONFIG_BLK_DEV_ZONED is not set # CONFIG_BLK_WBT is not set # CONFIG_BLK_SED_OPAL is not set # CONFIG_BLK_INLINE_ENCRYPTION is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y CONFIG_EFI_PARTITION=y # end of Partition Types # # IO Schedulers # # CONFIG_MQ_IOSCHED_DEADLINE is not set # CONFIG_MQ_IOSCHED_KYBER is not set # CONFIG_IOSCHED_BFQ is not set # end of IO Schedulers CONFIG_INLINE_SPIN_UNLOCK_IRQ=y CONFIG_INLINE_READ_UNLOCK=y CONFIG_INLINE_READ_UNLOCK_IRQ=y CONFIG_INLINE_WRITE_UNLOCK=y CONFIG_INLINE_WRITE_UNLOCK_IRQ=y CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y CONFIG_ARCH_USE_QUEUED_RWLOCKS=y CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y # # Executable file formats # # CONFIG_BINFMT_ELF is not set # CONFIG_BINFMT_SCRIPT is not set # CONFIG_BINFMT_MISC is not set CONFIG_COREDUMP=y # end of Executable file formats # # Memory Management options # # CONFIG_SWAP is not set # # SLAB allocator options # # CONFIG_SLAB is not set CONFIG_SLUB=y # CONFIG_SLAB_MERGE_DEFAULT is not set # CONFIG_SLAB_FREELIST_RANDOM is not set # CONFIG_SLAB_FREELIST_HARDENED is not set # CONFIG_SLUB_STATS is not set # end of SLAB allocator options # CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set # CONFIG_COMPAT_BRK is not set CONFIG_SPARSEMEM=y CONFIG_SPARSEMEM_EXTREME=y CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y # CONFIG_SPARSEMEM_VMEMMAP is not set CONFIG_HAVE_FAST_GUP=y CONFIG_EXCLUSIVE_SYSTEM_RAM=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y # CONFIG_MEMORY_HOTPLUG is not set CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y # CONFIG_COMPACTION is not set # CONFIG_PAGE_REPORTING is not set CONFIG_PHYS_ADDR_T_64BIT=y # CONFIG_KSM is not set CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_ARCH_WANT_GENERAL_HUGETLB=y CONFIG_ARCH_WANTS_THP_SWAP=y # CONFIG_TRANSPARENT_HUGEPAGE is not set CONFIG_NEED_PER_CPU_KM=y CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y # CONFIG_CMA is not set CONFIG_GENERIC_EARLY_IOREMAP=y # CONFIG_IDLE_PAGE_TRACKING is not set CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y CONFIG_ARCH_HAS_PTE_DEVMAP=y CONFIG_ZONE_DMA=y CONFIG_ZONE_DMA32=y CONFIG_VM_EVENT_COUNTERS=y # CONFIG_PERCPU_STATS is not set # # GUP_TEST needs to have DEBUG_FS enabled # CONFIG_ARCH_HAS_PTE_SPECIAL=y CONFIG_SECRETMEM=y # CONFIG_ANON_VMA_NAME is not set # CONFIG_USERFAULTFD is not set # CONFIG_LRU_GEN is not set # # Data Access Monitoring # # CONFIG_DAMON is not set # end of Data Access Monitoring # end of Memory Management options # CONFIG_NET is not set # # Device Drivers # CONFIG_HAVE_EISA=y # CONFIG_EISA is not set CONFIG_HAVE_PCI=y # CONFIG_PCI is not set # CONFIG_PCCARD is not set # # Generic Driver Options # # CONFIG_UEVENT_HELPER is not set # CONFIG_DEVTMPFS is not set # CONFIG_STANDALONE is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set # # Firmware loader # CONFIG_FW_LOADER=y CONFIG_EXTRA_FIRMWARE="" # CONFIG_FW_LOADER_USER_HELPER is not set # CONFIG_FW_LOADER_COMPRESS is not set # CONFIG_FW_UPLOAD is not set # end of Firmware loader CONFIG_ALLOW_DEV_COREDUMP=y CONFIG_GENERIC_CPU_AUTOPROBE=y CONFIG_GENERIC_CPU_VULNERABILITIES=y # end of Generic Driver Options # # Bus devices # # CONFIG_ARM_INTEGRATOR_LM is not set # CONFIG_BT1_APB is not set # CONFIG_BT1_AXI is not set # CONFIG_HISILICON_LPC is not set # CONFIG_INTEL_IXP4XX_EB is not set # CONFIG_QCOM_EBI2 is not set # CONFIG_MHI_BUS is not set # CONFIG_MHI_BUS_EP is not set # end of Bus devices # # Firmware Drivers # # # ARM System Control and Management Interface Protocol # # CONFIG_ARM_SCMI_PROTOCOL is not set # end of ARM System Control and Management Interface Protocol # CONFIG_EDD is not set CONFIG_FIRMWARE_MEMMAP=y # CONFIG_DMIID is not set # CONFIG_DMI_SYSFS is not set CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y # CONFIG_FW_CFG_SYSFS is not set # CONFIG_SYSFB_SIMPLEFB is not set # CONFIG_BCM47XX_NVRAM is not set # CONFIG_GOOGLE_FIRMWARE is not set # # Tegra firmware driver # # end of Tegra firmware driver # end of Firmware Drivers # CONFIG_GNSS is not set # CONFIG_MTD is not set # CONFIG_OF is not set CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y # CONFIG_PARPORT is not set # CONFIG_BLK_DEV is not set # # NVME Support # # CONFIG_NVME_FC is not set # end of NVME Support # # Misc devices # # CONFIG_DUMMY_IRQ is not set # CONFIG_ATMEL_SSC is not set # CONFIG_ENCLOSURE_SERVICES is not set # CONFIG_SMPRO_ERRMON is not set # CONFIG_SMPRO_MISC is not set # CONFIG_QCOM_COINCELL is not set # CONFIG_SRAM is not set # CONFIG_XILINX_SDFEC is not set # CONFIG_C2PORT is not set # # EEPROM support # # CONFIG_EEPROM_93CX6 is not set # end of EEPROM support # # Texas Instruments shared transport line discipline # # end of Texas Instruments shared transport line discipline # # Altera FPGA firmware download module (requires I2C) # # CONFIG_ECHO is not set # CONFIG_PVPANIC is not set # end of Misc devices # # SCSI device support # CONFIG_SCSI_MOD=y # CONFIG_RAID_ATTRS is not set # CONFIG_SCSI is not set # end of SCSI device support # CONFIG_ATA is not set # CONFIG_MD is not set # CONFIG_TARGET_CORE is not set # # IEEE 1394 (FireWire) support # # CONFIG_FIREWIRE is not set # end of IEEE 1394 (FireWire) support # CONFIG_MACINTOSH_DRIVERS is not set # # Input device support # CONFIG_INPUT=y # CONFIG_INPUT_FF_MEMLESS is not set # CONFIG_INPUT_SPARSEKMAP is not set # CONFIG_INPUT_MATRIXKMAP is not set # # Userland interfaces # # CONFIG_INPUT_MOUSEDEV is not set # CONFIG_INPUT_JOYDEV is not set # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set # # Input Device Drivers # # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set # CONFIG_RMI4_CORE is not set # # Hardware I/O ports # # CONFIG_SERIO is not set CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y # CONFIG_GAMEPORT is not set # end of Hardware I/O ports # end of Input device support # # Character devices # CONFIG_TTY=y CONFIG_VT=y CONFIG_CONSOLE_TRANSLATIONS=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y # CONFIG_VT_HW_CONSOLE_BINDING is not set CONFIG_UNIX98_PTYS=y # CONFIG_LEGACY_PTYS is not set # CONFIG_LEGACY_TIOCSTI is not set # CONFIG_LDISC_AUTOLOAD is not set # # Serial drivers # # CONFIG_SERIAL_8250 is not set # # Non-8250 serial port support # # CONFIG_SERIAL_AMBA_PL010 is not set # CONFIG_SERIAL_MESON is not set # CONFIG_SERIAL_CLPS711X is not set # CONFIG_SERIAL_SAMSUNG is not set # CONFIG_SERIAL_TEGRA is not set # CONFIG_SERIAL_IMX is not set # CONFIG_SERIAL_UARTLITE is not set # CONFIG_SERIAL_SH_SCI is not set # CONFIG_SERIAL_MSM is not set # CONFIG_SERIAL_VT8500 is not set # CONFIG_SERIAL_OMAP is not set # CONFIG_SERIAL_LANTIQ is not set # CONFIG_SERIAL_SCCNXP is not set # CONFIG_SERIAL_TIMBERDALE is not set # CONFIG_SERIAL_BCM63XX is not set # CONFIG_SERIAL_ALTERA_JTAGUART is not set # CONFIG_SERIAL_ALTERA_UART is not set # CONFIG_SERIAL_MXS_AUART is not set # CONFIG_SERIAL_MPS2_UART is not set # CONFIG_SERIAL_ARC is not set # CONFIG_SERIAL_FSL_LPUART is not set # CONFIG_SERIAL_FSL_LINFLEXUART is not set # CONFIG_SERIAL_ST_ASC is not set # CONFIG_SERIAL_STM32 is not set # CONFIG_SERIAL_OWL is not set # CONFIG_SERIAL_RDA is not set # CONFIG_SERIAL_LITEUART is not set # CONFIG_SERIAL_SUNPLUS is not set # end of Serial drivers # CONFIG_SERIAL_NONSTANDARD is not set # CONFIG_NULL_TTY is not set # CONFIG_SERIAL_DEV_BUS is not set # CONFIG_VIRTIO_CONSOLE is not set # CONFIG_IPMI_HANDLER is not set # CONFIG_ASPEED_KCS_IPMI_BMC is not set # CONFIG_NPCM7XX_KCS_IPMI_BMC is not set # CONFIG_HW_RANDOM is not set # CONFIG_MWAVE is not set # CONFIG_DEVMEM is not set # CONFIG_NVRAM is not set # CONFIG_HANGCHECK_TIMER is not set # CONFIG_TCG_TPM is not set # CONFIG_TELCLOCK is not set # end of Character devices # # I2C support # # CONFIG_I2C is not set # end of I2C support # CONFIG_I3C is not set # CONFIG_SPI is not set # CONFIG_SPMI is not set # CONFIG_HSI is not set # CONFIG_PPS is not set # # PTP clock support # CONFIG_PTP_1588_CLOCK_OPTIONAL=y # # Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks. # # end of PTP clock support # CONFIG_PINCTRL is not set # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set # CONFIG_POWER_RESET is not set # CONFIG_POWER_SUPPLY is not set # CONFIG_HWMON is not set # CONFIG_THERMAL is not set # CONFIG_WATCHDOG is not set CONFIG_SSB_POSSIBLE=y # CONFIG_SSB is not set CONFIG_BCMA_POSSIBLE=y # CONFIG_BCMA is not set # # Multifunction device drivers # # CONFIG_MFD_SUN4I_GPADC is not set # CONFIG_MFD_AT91_USART is not set # CONFIG_MFD_MADERA is not set # CONFIG_MFD_EXYNOS_LPASS is not set # CONFIG_MFD_MXS_LRADC is not set # CONFIG_MFD_MX25_TSADC is not set # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_KEMPLD is not set # CONFIG_MFD_MT6397 is not set # CONFIG_MFD_PM8XXX is not set # CONFIG_MFD_SM501 is not set # CONFIG_ABX500_CORE is not set # CONFIG_MFD_SUN6I_PRCM is not set # CONFIG_MFD_SYSCON is not set # CONFIG_MFD_TI_AM335X_TSCADC is not set # CONFIG_MFD_TQMX86 is not set # CONFIG_MFD_STM32_LPTIMER is not set # CONFIG_MFD_STM32_TIMERS is not set # end of Multifunction device drivers # CONFIG_REGULATOR is not set # CONFIG_RC_CORE is not set # # CEC support # # CONFIG_MEDIA_CEC_SUPPORT is not set # end of CEC support # CONFIG_MEDIA_SUPPORT is not set # # Graphics support # # CONFIG_IMX_IPUV3_CORE is not set # CONFIG_DRM is not set # # ARM devices # # end of ARM devices # # Frame buffer Devices # # CONFIG_FB is not set # CONFIG_MMP_DISP is not set # end of Frame buffer Devices # # Backlight & LCD device support # # CONFIG_LCD_CLASS_DEVICE is not set # CONFIG_BACKLIGHT_CLASS_DEVICE is not set # end of Backlight & LCD device support # # Console display driver support # CONFIG_VGA_CONSOLE=y CONFIG_DUMMY_CONSOLE=y CONFIG_DUMMY_CONSOLE_COLUMNS=80 CONFIG_DUMMY_CONSOLE_ROWS=25 # end of Console display driver support # end of Graphics support # CONFIG_SOUND is not set # # HID support # # CONFIG_HID is not set # end of HID support CONFIG_USB_OHCI_LITTLE_ENDIAN=y # CONFIG_USB_SUPPORT is not set # CONFIG_MMC is not set # CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set # CONFIG_ACCESSIBILITY is not set CONFIG_EDAC_ATOMIC_SCRUB=y CONFIG_EDAC_SUPPORT=y CONFIG_RTC_LIB=y CONFIG_RTC_MC146818_LIB=y # CONFIG_RTC_CLASS is not set # CONFIG_DMADEVICES is not set # # DMABUF options # # CONFIG_SYNC_FILE is not set # CONFIG_DMABUF_HEAPS is not set # end of DMABUF options # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set # CONFIG_VFIO is not set # CONFIG_VIRT_DRIVERS is not set # CONFIG_VIRTIO_MENU is not set # CONFIG_VHOST_MENU is not set # # Microsoft Hyper-V guest support # # end of Microsoft Hyper-V guest support # CONFIG_GREYBUS is not set # CONFIG_COMEDI is not set # CONFIG_STAGING is not set # CONFIG_CHROME_PLATFORMS is not set # CONFIG_MELLANOX_PLATFORM is not set # CONFIG_OLPC_XO175 is not set # CONFIG_SURFACE_PLATFORMS is not set # CONFIG_X86_PLATFORM_DEVICES is not set # CONFIG_COMMON_CLK is not set # CONFIG_HWSPINLOCK is not set # # Clock Source drivers # CONFIG_CLKEVT_I8253=y CONFIG_I8253_LOCK=y CONFIG_CLKBLD_I8253=y # CONFIG_BCM2835_TIMER is not set # CONFIG_BCM_KONA_TIMER is not set # CONFIG_DAVINCI_TIMER is not set # CONFIG_DIGICOLOR_TIMER is not set # CONFIG_OMAP_DM_TIMER is not set # CONFIG_DW_APB_TIMER is not set # CONFIG_FTTMR010_TIMER is not set # CONFIG_IXP4XX_TIMER is not set # CONFIG_MESON6_TIMER is not set # CONFIG_OWL_TIMER is not set # CONFIG_RDA_TIMER is not set # CONFIG_SUN4I_TIMER is not set # CONFIG_TEGRA_TIMER is not set # CONFIG_VT8500_TIMER is not set # CONFIG_NPCM7XX_TIMER is not set # CONFIG_ASM9260_TIMER is not set # CONFIG_CLKSRC_DBX500_PRCMU is not set # CONFIG_CLPS711X_TIMER is not set # CONFIG_MXS_TIMER is not set # CONFIG_NSPIRE_TIMER is not set # CONFIG_INTEGRATOR_AP_TIMER is not set # CONFIG_CLKSRC_PISTACHIO is not set # CONFIG_CLKSRC_STM32_LP is not set # CONFIG_ARMV7M_SYSTICK is not set # CONFIG_ATMEL_PIT is not set # CONFIG_ATMEL_ST is not set # CONFIG_CLKSRC_SAMSUNG_PWM is not set # CONFIG_FSL_FTM_TIMER is not set # CONFIG_OXNAS_RPS_TIMER is not set # CONFIG_MTK_TIMER is not set # CONFIG_SH_TIMER_CMT is not set # CONFIG_SH_TIMER_MTU2 is not set # CONFIG_RENESAS_OSTM is not set # CONFIG_SH_TIMER_TMU is not set # CONFIG_EM_TIMER_STI is not set # CONFIG_CLKSRC_PXA is not set # CONFIG_TIMER_IMX_SYS_CTR is not set # CONFIG_CLKSRC_ST_LPC is not set # CONFIG_GXP_TIMER is not set # CONFIG_MSC313E_TIMER is not set # CONFIG_MICROCHIP_PIT64B is not set # end of Clock Source drivers # CONFIG_MAILBOX is not set # CONFIG_IOMMU_SUPPORT is not set # # Remoteproc drivers # # CONFIG_REMOTEPROC is not set # end of Remoteproc drivers # # Rpmsg drivers # # CONFIG_RPMSG_VIRTIO is not set # end of Rpmsg drivers # # SOC (System On Chip) specific Drivers # # # Amlogic SoC drivers # # CONFIG_MESON_CANVAS is not set # CONFIG_MESON_CLK_MEASURE is not set # CONFIG_MESON_GX_SOCINFO is not set # CONFIG_MESON_MX_SOCINFO is not set # end of Amlogic SoC drivers # # Apple SoC drivers # # CONFIG_APPLE_SART is not set # end of Apple SoC drivers # # ASPEED SoC drivers # # CONFIG_ASPEED_LPC_CTRL is not set # CONFIG_ASPEED_LPC_SNOOP is not set # CONFIG_ASPEED_UART_ROUTING is not set # CONFIG_ASPEED_P2A_CTRL is not set # CONFIG_ASPEED_SOCINFO is not set # end of ASPEED SoC drivers # CONFIG_AT91_SOC_ID is not set # CONFIG_AT91_SOC_SFR is not set # # Broadcom SoC drivers # # CONFIG_SOC_BCM63XX is not set # CONFIG_SOC_BRCMSTB is not set # end of Broadcom SoC drivers # # NXP/Freescale QorIQ SoC drivers # # end of NXP/Freescale QorIQ SoC drivers # # fujitsu SoC drivers # # end of fujitsu SoC drivers # # i.MX SoC drivers # # CONFIG_SOC_IMX8M is not set # CONFIG_SOC_IMX9 is not set # end of i.MX SoC drivers # # IXP4xx SoC drivers # # CONFIG_IXP4XX_QMGR is not set # CONFIG_IXP4XX_NPE is not set # end of IXP4xx SoC drivers # # Enable LiteX SoC Builder specific drivers # # CONFIG_LITEX_SOC_CONTROLLER is not set # end of Enable LiteX SoC Builder specific drivers # CONFIG_LOONGSON2_GUTS is not set # # MediaTek SoC drivers # # CONFIG_MTK_CMDQ is not set # CONFIG_MTK_DEVAPC is not set # CONFIG_MTK_INFRACFG is not set # CONFIG_MTK_MMSYS is not set # end of MediaTek SoC drivers # # Qualcomm SoC drivers # # CONFIG_QCOM_GENI_SE is not set # CONFIG_QCOM_GSBI is not set # CONFIG_QCOM_LLCC is not set # CONFIG_QCOM_RPMH is not set # CONFIG_QCOM_SPM is not set # CONFIG_QCOM_ICC_BWMON is not set # end of Qualcomm SoC drivers # CONFIG_SOC_RENESAS is not set # CONFIG_ROCKCHIP_GRF is not set # CONFIG_SOC_SAMSUNG is not set # CONFIG_SOC_TI is not set # CONFIG_UX500_SOC_ID is not set # # Xilinx SoC drivers # # end of Xilinx SoC drivers # end of SOC (System On Chip) specific Drivers # CONFIG_PM_DEVFREQ is not set # CONFIG_EXTCON is not set # CONFIG_MEMORY is not set # CONFIG_IIO is not set # CONFIG_PWM is not set # # IRQ chip support # # CONFIG_RENESAS_INTC_IRQPIN is not set # CONFIG_RENESAS_IRQC is not set # CONFIG_RENESAS_RZA1_IRQC is not set # CONFIG_RENESAS_RZG2L_IRQC is not set # CONFIG_SL28CPLD_INTC is not set # CONFIG_TS4800_IRQ is not set # CONFIG_INGENIC_TCU_IRQ is not set # CONFIG_IRQ_UNIPHIER_AIDET is not set # CONFIG_MESON_IRQ_GPIO is not set # CONFIG_IMX_IRQSTEER is not set # CONFIG_IMX_INTMUX is not set # CONFIG_EXYNOS_IRQ_COMBINER is not set # CONFIG_MST_IRQ is not set # CONFIG_MCHP_EIC is not set # CONFIG_SUNPLUS_SP7021_INTC is not set # end of IRQ chip support # CONFIG_IPACK_BUS is not set # CONFIG_RESET_CONTROLLER is not set # # PHY Subsystem # # CONFIG_GENERIC_PHY is not set # CONFIG_PHY_PISTACHIO_USB is not set # CONFIG_PHY_CAN_TRANSCEIVER is not set # # PHY drivers for Broadcom platforms # # CONFIG_PHY_BCM63XX_USBH is not set # CONFIG_BCM_KONA_USB2_PHY is not set # end of PHY drivers for Broadcom platforms # CONFIG_PHY_HI6220_USB is not set # CONFIG_PHY_HI3660_USB is not set # CONFIG_PHY_HI3670_USB is not set # CONFIG_PHY_HI3670_PCIE is not set # CONFIG_PHY_HISTB_COMBPHY is not set # CONFIG_PHY_HISI_INNO_USB2 is not set # CONFIG_PHY_PXA_28NM_HSIC is not set # CONFIG_PHY_PXA_28NM_USB2 is not set # CONFIG_PHY_PXA_USB is not set # CONFIG_PHY_MMP3_USB is not set # CONFIG_PHY_MMP3_HSIC is not set # CONFIG_PHY_MT7621_PCI is not set # CONFIG_PHY_RALINK_USB is not set # CONFIG_PHY_R8A779F0_ETHERNET_SERDES is not set # CONFIG_PHY_RCAR_GEN3_USB3 is not set # CONFIG_PHY_ROCKCHIP_DPHY_RX0 is not set # CONFIG_PHY_ROCKCHIP_PCIE is not set # CONFIG_PHY_ROCKCHIP_SNPS_PCIE3 is not set # CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set # CONFIG_PHY_SAMSUNG_USB2 is not set # CONFIG_PHY_ST_SPEAR1310_MIPHY is not set # CONFIG_PHY_ST_SPEAR1340_MIPHY is not set # CONFIG_PHY_TEGRA194_P2U is not set # CONFIG_PHY_DA8XX_USB is not set # CONFIG_OMAP_CONTROL_PHY is not set # CONFIG_TI_PIPE3 is not set # CONFIG_PHY_INTEL_KEEMBAY_EMMC is not set # CONFIG_PHY_INTEL_KEEMBAY_USB is not set # CONFIG_PHY_INTEL_LGM_EMMC is not set # CONFIG_PHY_XILINX_ZYNQMP is not set # end of PHY Subsystem # CONFIG_POWERCAP is not set # CONFIG_MCB is not set # # Performance monitor support # # CONFIG_ARM_CCN is not set # CONFIG_ARM_CMN is not set # CONFIG_FSL_IMX8_DDR_PMU is not set # CONFIG_XGENE_PMU is not set # CONFIG_ARM_DMC620_PMU is not set # CONFIG_MARVELL_CN10K_TAD_PMU is not set # CONFIG_ALIBABA_UNCORE_DRW_PMU is not set # CONFIG_MARVELL_CN10K_DDR_PMU is not set # CONFIG_MESON_DDR_PMU is not set # end of Performance monitor support # CONFIG_RAS is not set # # Android # # CONFIG_ANDROID_BINDER_IPC is not set # end of Android # CONFIG_DAX is not set # CONFIG_NVMEM is not set # # HW tracing support # # CONFIG_STM is not set # CONFIG_INTEL_TH is not set # end of HW tracing support # CONFIG_FPGA is not set # CONFIG_TEE is not set # CONFIG_SIOX is not set # CONFIG_SLIMBUS is not set # CONFIG_INTERCONNECT is not set # CONFIG_COUNTER is not set # CONFIG_PECI is not set # CONFIG_HTE is not set # end of Device Drivers # # File systems # CONFIG_DCACHE_WORD_ACCESS=y # CONFIG_VALIDATE_FS_PARSER is not set # CONFIG_EXT2_FS is not set # CONFIG_EXT3_FS is not set # CONFIG_EXT4_FS is not set # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_BTRFS_FS is not set # CONFIG_NILFS2_FS is not set # CONFIG_F2FS_FS is not set CONFIG_EXPORTFS=y # CONFIG_EXPORTFS_BLOCK_OPS is not set CONFIG_FILE_LOCKING=y # CONFIG_FS_ENCRYPTION is not set # CONFIG_FS_VERITY is not set # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY_USER is not set # CONFIG_FANOTIFY is not set # CONFIG_QUOTA is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_AUTOFS_FS is not set # CONFIG_FUSE_FS is not set # CONFIG_OVERLAY_FS is not set # # Caches # # CONFIG_FSCACHE is not set # end of Caches # # CD-ROM/DVD Filesystems # # CONFIG_ISO9660_FS is not set # CONFIG_UDF_FS is not set # end of CD-ROM/DVD Filesystems # # DOS/FAT/EXFAT/NT Filesystems # # CONFIG_MSDOS_FS is not set # CONFIG_VFAT_FS is not set # CONFIG_EXFAT_FS is not set # CONFIG_NTFS_FS is not set # CONFIG_NTFS3_FS is not set # end of DOS/FAT/EXFAT/NT Filesystems # # Pseudo filesystems # CONFIG_PROC_FS=y # CONFIG_PROC_KCORE is not set CONFIG_PROC_SYSCTL=y CONFIG_PROC_PAGE_MONITOR=y # CONFIG_PROC_CHILDREN is not set CONFIG_PROC_PID_ARCH_STATUS=y CONFIG_KERNFS=y CONFIG_SYSFS=y # CONFIG_TMPFS is not set # CONFIG_HUGETLBFS is not set CONFIG_ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y CONFIG_ARCH_HAS_GIGANTIC_PAGE=y # CONFIG_CONFIGFS_FS is not set # end of Pseudo filesystems # CONFIG_MISC_FILESYSTEMS is not set # CONFIG_NLS is not set # CONFIG_UNICODE is not set CONFIG_IO_WQ=y # end of File systems # # Security options # # CONFIG_KEYS is not set # CONFIG_SECURITY_DMESG_RESTRICT is not set # CONFIG_SECURITY is not set # CONFIG_SECURITYFS is not set CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y # CONFIG_HARDENED_USERCOPY is not set # CONFIG_FORTIFY_SOURCE is not set # CONFIG_STATIC_USERMODEHELPER is not set CONFIG_DEFAULT_SECURITY_DAC=y CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf" # # Kernel hardening options # # # Memory initialization # CONFIG_INIT_STACK_NONE=y # CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set # CONFIG_INIT_ON_FREE_DEFAULT_ON is not set CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y # CONFIG_ZERO_CALL_USED_REGS is not set # end of Memory initialization CONFIG_RANDSTRUCT_NONE=y # end of Kernel hardening options # end of Security options # CONFIG_CRYPTO is not set # # Library routines # # CONFIG_PACKING is not set CONFIG_BITREVERSE=y CONFIG_GENERIC_STRNCPY_FROM_USER=y CONFIG_GENERIC_STRNLEN_USER=y # CONFIG_CORDIC is not set # CONFIG_PRIME_NUMBERS is not set CONFIG_GENERIC_PCI_IOMAP=y CONFIG_GENERIC_IOMAP=y CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y CONFIG_ARCH_HAS_FAST_MULTIPLIER=y CONFIG_ARCH_USE_SYM_ANNOTATIONS=y # # Crypto library routines # CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y # CONFIG_CRYPTO_LIB_CHACHA is not set # CONFIG_CRYPTO_LIB_CURVE25519 is not set CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11 # CONFIG_CRYPTO_LIB_POLY1305 is not set # end of Crypto library routines # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set # CONFIG_CRC_T10DIF is not set # CONFIG_CRC64_ROCKSOFT is not set # CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y # CONFIG_CRC32_SELFTEST is not set CONFIG_CRC32_SLICEBY8=y # CONFIG_CRC32_SLICEBY4 is not set # CONFIG_CRC32_SARWATE is not set # CONFIG_CRC32_BIT is not set # CONFIG_CRC64 is not set # CONFIG_CRC4 is not set # CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set # CONFIG_CRC8 is not set # CONFIG_RANDOM32_SELFTEST is not set # CONFIG_XZ_DEC is not set CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y CONFIG_HAS_DMA=y CONFIG_NEED_SG_DMA_LENGTH=y CONFIG_NEED_DMA_MAP_STATE=y CONFIG_ARCH_DMA_ADDR_T_64BIT=y CONFIG_SWIOTLB=y # CONFIG_DMA_API_DEBUG is not set # CONFIG_IRQ_POLL is not set CONFIG_HAVE_GENERIC_VDSO=y CONFIG_GENERIC_GETTIMEOFDAY=y CONFIG_GENERIC_VDSO_TIME_NS=y CONFIG_ARCH_HAS_PMEM_API=y CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION=y CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y CONFIG_ARCH_HAS_COPY_MC=y CONFIG_ARCH_STACKWALK=y CONFIG_STACKDEPOT=y CONFIG_SBITMAP=y # CONFIG_PARMAN is not set # CONFIG_OBJAGG is not set # end of Library routines # # Kernel hacking # # # printk and dmesg options # # CONFIG_PRINTK_TIME is not set # CONFIG_PRINTK_CALLER is not set # CONFIG_STACKTRACE_BUILD_ID is not set CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7 CONFIG_CONSOLE_LOGLEVEL_QUIET=4 CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4 # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_DYNAMIC_DEBUG_CORE is not set # CONFIG_SYMBOLIC_ERRNAME is not set CONFIG_DEBUG_BUGVERBOSE=y # end of printk and dmesg options # CONFIG_DEBUG_KERNEL is not set # # Compile-time checks and compiler options # CONFIG_AS_HAS_NON_CONST_LEB128=y CONFIG_FRAME_WARN=2048 # CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HEADERS_INSTALL is not set CONFIG_DEBUG_SECTION_MISMATCH=y CONFIG_SECTION_MISMATCH_WARN_ONLY=y CONFIG_OBJTOOL=y # end of Compile-time checks and compiler options # # Generic Kernel Debugging Instruments # # CONFIG_MAGIC_SYSRQ is not set # CONFIG_DEBUG_FS is not set CONFIG_HAVE_ARCH_KGDB=y CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y # CONFIG_UBSAN is not set CONFIG_HAVE_ARCH_KCSAN=y CONFIG_HAVE_KCSAN_COMPILER=y # end of Generic Kernel Debugging Instruments # # Networking Debugging # # end of Networking Debugging # # Memory Debugging # # CONFIG_PAGE_EXTENSION is not set CONFIG_SLUB_DEBUG=y # CONFIG_SLUB_DEBUG_ON is not set # CONFIG_PAGE_TABLE_CHECK is not set # CONFIG_PAGE_POISONING is not set # CONFIG_DEBUG_RODATA_TEST is not set CONFIG_ARCH_HAS_DEBUG_WX=y # CONFIG_DEBUG_WX is not set CONFIG_GENERIC_PTDUMP=y CONFIG_HAVE_DEBUG_KMEMLEAK=y CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y # CONFIG_DEBUG_VM_PGTABLE is not set CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y CONFIG_HAVE_ARCH_KASAN=y CONFIG_HAVE_ARCH_KASAN_VMALLOC=y CONFIG_CC_HAS_KASAN_GENERIC=y CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y # CONFIG_KASAN is not set CONFIG_HAVE_ARCH_KFENCE=y # CONFIG_KFENCE is not set CONFIG_HAVE_ARCH_KMSAN=y # end of Memory Debugging # # Debug Oops, Lockups and Hangs # # CONFIG_PANIC_ON_OOPS is not set CONFIG_PANIC_ON_OOPS_VALUE=0 CONFIG_PANIC_TIMEOUT=0 CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y # end of Debug Oops, Lockups and Hangs # # Scheduler Debugging # # end of Scheduler Debugging # CONFIG_DEBUG_TIMEKEEPING is not set # # Lock Debugging (spinlocks, mutexes, etc...) # CONFIG_LOCK_DEBUGGING_SUPPORT=y # CONFIG_WW_MUTEX_SELFTEST is not set # end of Lock Debugging (spinlocks, mutexes, etc...) # CONFIG_DEBUG_IRQFLAGS is not set CONFIG_STACKTRACE=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # # Debug kernel data structures # # CONFIG_BUG_ON_DATA_CORRUPTION is not set # end of Debug kernel data structures # # RCU Debugging # # end of RCU Debugging CONFIG_USER_STACKTRACE_SUPPORT=y CONFIG_HAVE_RETHOOK=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y CONFIG_HAVE_DYNAMIC_FTRACE_NO_PATCHABLE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_HAVE_SYSCALL_TRACEPOINTS=y CONFIG_HAVE_FENTRY=y CONFIG_HAVE_OBJTOOL_MCOUNT=y CONFIG_HAVE_OBJTOOL_NOP_MCOUNT=y CONFIG_HAVE_C_RECORDMCOUNT=y CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y CONFIG_TRACING_SUPPORT=y # CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y # # x86 Debugging # # CONFIG_X86_VERBOSE_BOOTUP is not set CONFIG_EARLY_PRINTK=y CONFIG_HAVE_MMIOTRACE_SUPPORT=y CONFIG_IO_DELAY_0X80=y # CONFIG_IO_DELAY_0XED is not set # CONFIG_IO_DELAY_UDELAY is not set # CONFIG_IO_DELAY_NONE is not set CONFIG_UNWINDER_ORC=y # CONFIG_UNWINDER_FRAME_POINTER is not set # end of x86 Debugging # # Kernel Testing and Coverage # # CONFIG_KUNIT is not set CONFIG_ARCH_HAS_KCOV=y CONFIG_CC_HAS_SANCOV_TRACE_PC=y # CONFIG_KCOV is not set # CONFIG_RUNTIME_TESTING_MENU is not set CONFIG_ARCH_USE_MEMTEST=y # CONFIG_MEMTEST is not set # end of Kernel Testing and Coverage # # Rust hacking # # end of Rust hacking CONFIG_WARN_MISSING_DOCUMENTS=y CONFIG_WARN_ABI_ERRORS=y # end of Kernel hacking ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 3/4] zsmalloc: make zspage chain size configurable 2023-01-05 19:49 ` kernel test robot @ 2023-01-06 2:40 ` Sergey Senozhatsky 0 siblings, 0 replies; 7+ messages in thread From: Sergey Senozhatsky @ 2023-01-06 2:40 UTC (permalink / raw) To: kernel test robot Cc: Sergey Senozhatsky, Minchan Kim, Andrew Morton, oe-kbuild-all, Linux Memory Management List, linux-kernel On (23/01/06 03:49), kernel test robot wrote: > All warnings (new ones prefixed by >>): > > >> Documentation/admin-guide/blockdev/zsmalloc.rst:19: WARNING: Literal block expected; none found. > >> Documentation/admin-guide/blockdev/zsmalloc.rst:21: WARNING: Unexpected indentation. > >> Documentation/admin-guide/blockdev/zsmalloc.rst:22: WARNING: Block quote ends without a blank line; unexpected unindent. > >> Documentation/admin-guide/blockdev/zsmalloc.rst: WARNING: document isn't included in any toctree > > vim +19 Documentation/admin-guide/blockdev/zsmalloc.rst > > 18 > > 19 class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable > 20 .. > > 21 94 1536 0 0 0 0 0 3 0 > > 22 100 1632 0 0 0 0 0 2 0 > 23 .. > 24 Thanks. OK, added `make htmldocs` to my build scripts, time to get used to the fact that we now make docs. I fixed all the warnings and moved the contents to Documentation/mm/zsmalloc.rst file of which I was not aware before. Will include all the improvements into v2. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 4/4] zsmalloc: set default zspage chain size to 8 2023-01-05 5:35 [PATCH 0/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky ` (2 preceding siblings ...) 2023-01-05 5:35 ` [PATCH 3/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky @ 2023-01-05 5:35 ` Sergey Senozhatsky 3 siblings, 0 replies; 7+ messages in thread From: Sergey Senozhatsky @ 2023-01-05 5:35 UTC (permalink / raw) To: Minchan Kim, Andrew Morton; +Cc: linux-kernel, linux-mm, Sergey Senozhatsky This changes key characteristics (pages per-zspage and objects per-zspage) of a number of size classes which in results in different pool configuration. With zspage chain size of 8 we have more size clases clusters (123) and higher huge size class watermark (3632 bytes). Please read zsmalloc documentation for more details. Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> --- mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/Kconfig b/mm/Kconfig index 995a7c4083c2..9ab5c1996a04 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -193,7 +193,7 @@ config ZSMALLOC_STAT config ZSMALLOC_CHAIN_SIZE int "Maximum number of physical pages per-zspage" - default 4 + default 8 range 1 16 depends on ZSMALLOC help -- 2.39.0.314.g84b9a713c41-goog ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-01-06 2:40 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-01-05 5:35 [PATCH 0/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 1/4] zsmalloc: rework zspage chain size selection Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 2/4] zsmalloc: skip chain size calculation for pow_of_2 classes Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 3/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky 2023-01-05 19:49 ` kernel test robot 2023-01-06 2:40 ` Sergey Senozhatsky 2023-01-05 5:35 ` [PATCH 4/4] zsmalloc: set default zspage chain size to 8 Sergey Senozhatsky
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