From: Ming Lei <ming.lei@redhat.com>
To: "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-block@vger.kernel.org, Harry Yoo <harry.yoo@oracle.com>,
Hao Li <hao.li@linux.dev>, Christoph Hellwig <hch@infradead.org>
Subject: Re: [Regression] mm:slab/sheaves: severe performance regression in cross-CPU slab allocation
Date: Thu, 5 Mar 2026 23:48:09 +0800 [thread overview]
Message-ID: <aamluV66pLIdo66g@fedora> (raw)
In-Reply-To: <08db9e93-3d29-42e0-ae57-79c295d75753@kernel.org>
On Thu, Mar 05, 2026 at 02:05:20PM +0100, Vlastimil Babka (SUSE) wrote:
> On 2/27/26 10:23, Ming Lei wrote:
> > On Thu, Feb 26, 2026 at 07:02:11PM +0100, Vlastimil Babka (SUSE) wrote:
> >> On 2/25/26 10:31, Ming Lei wrote:
> >> > Hi Vlastimil,
> >> >
> >> > On Wed, Feb 25, 2026 at 09:45:03AM +0100, Vlastimil Babka (SUSE) wrote:
> >> >> On 2/24/26 21:27, Vlastimil Babka wrote:
> >> >> >
> >> >> > It made sense to me not to refill sheaves when we can't reclaim, but I
> >> >> > didn't anticipate this interaction with mempools. We could change them
> >> >> > but there might be others using a similar pattern. Maybe it would be for
> >> >> > the best to just drop that heuristic from __pcs_replace_empty_main()
> >> >> > (but carefully as some deadlock avoidance depends on it, we might need
> >> >> > to e.g. replace it with gfpflags_allow_spinning()). I'll send a patch
> >> >> > tomorrow to test this theory, unless someone beats me to it (feel free to).
> >> >> Could you try this then, please? Thanks!
> >> >
> >> > Thanks for working on this issue!
> >> >
> >> > Unfortunately the patch doesn't make a difference on IOPS in the perf test,
> >> > follows the collected perf profile on linus tree(basically 7.0-rc1 with your patch):
> >>
> >> what about this patch in addition to the previous one? Thanks.
> >
> > With the two patches, IOPS increases to 22M from 13M, but still much less than
> > 36M which is obtained in v6.19-rc5, and slab-sheave PR follows v6.19-rc5.
>
> OK thanks! Maybe now we're approching the original theories about effective
> caching capacity etc...
>
> > Also alloc_slowpath can't be observed any more.
> >
> > Follows perf profile with the two patches:
>
> What's the full perf profile of v6.19-rc5 and full profile of the patched
> 7.0-rc2 then? Thanks.
>
> Also contents of all the files under /sys/kernel/slab/$cache (forgot which
> particular one it was) with CONFIG_SLUB_STATS=y would be great, thanks.
Please see the following log, and let me know if any other info is needed.
1) v6.19-rc5
- IOPS: 34M
- perf profile
+ perf report --vmlinux=/root/git/linux/vmlinux --kallsyms=/proc/kallsyms --stdio --max-stack 0
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 1M of event 'cycles:P'
# Event count (approx.): 1045386603400
#
# Children Self Command Shared Object Symbol
# ........ ........ ............... ........................ ..............................................
#
14.41% 14.41% kublk [kernel.kallsyms] [k] _copy_from_iter
11.25% 11.25% io_uring [kernel.kallsyms] [k] blk_mq_sched_bio_merge
3.73% 3.73% kublk [kernel.kallsyms] [k] slab_update_freelist.isra.0
3.53% 3.53% kublk [kernel.kallsyms] [k] ublk_dispatch_req
3.33% 3.33% io_uring [kernel.kallsyms] [k] blk_mq_rq_ctx_init.isra.0
2.65% 2.65% kublk [kernel.kallsyms] [k] blk_mq_free_request
2.01% 2.01% io_uring [kernel.kallsyms] [k] blkdev_read_iter
1.92% 1.92% io_uring [kernel.kallsyms] [k] __io_read
1.67% 1.67% io_uring [kernel.kallsyms] [k] blk_mq_submit_bio
1.54% 1.54% kublk [kernel.kallsyms] [k] ublk_ch_uring_cmd_local
1.36% 1.36% io_uring [kernel.kallsyms] [k] __fsnotify_parent
1.30% 1.30% io_uring [kernel.kallsyms] [k] clear_page_erms
1.19% 1.19% io_uring [kernel.kallsyms] [k] llist_reverse_order
1.11% 1.11% io_uring [kernel.kallsyms] [k] blk_cgroup_bio_start
0.98% 0.98% kublk [kernel.kallsyms] [k] __check_object_size
0.98% 0.98% kublk kublk [.] ublk_queue_io_cmd
0.97% 0.97% io_uring [kernel.kallsyms] [k] __submit_bio
0.97% 0.97% kublk [kernel.kallsyms] [k] __slab_free
0.96% 0.96% io_uring [kernel.kallsyms] [k] submit_bio_noacct_nocheck
0.92% 0.92% kublk [kernel.kallsyms] [k] io_issue_sqe
0.91% 0.91% io_uring io_uring [.] submitter_uring_fn
0.88% 0.88% io_uring io_uring [.] get_offset.part.0
0.86% 0.86% io_uring [kernel.kallsyms] [k] kmem_cache_alloc_noprof
0.85% 0.85% kublk [kernel.kallsyms] [k] ublk_copy_user_pages.isra.0
0.77% 0.77% io_uring [kernel.kallsyms] [k] blk_mq_start_request
0.74% 0.74% kublk kublk [.] ublk_null_queue_io
0.74% 0.74% io_uring [kernel.kallsyms] [k] io_import_reg_buf
0.67% 0.67% io_uring [kernel.kallsyms] [k] io_issue_sqe
0.66% 0.66% io_uring [kernel.kallsyms] [k] bio_alloc_bioset
0.66% 0.66% kublk [kernel.kallsyms] [k] kmem_cache_free
0.66% 0.66% io_uring [kernel.kallsyms] [k] __blkdev_direct_IO_async
0.64% 0.64% kublk [kernel.kallsyms] [k] __io_issue_sqe
0.61% 0.61% io_uring [kernel.kallsyms] [k] submit_bio
0.59% 0.59% kublk [kernel.kallsyms] [k] __io_uring_cmd_done
0.58% 0.58% io_uring [kernel.kallsyms] [k] blk_rq_merge_ok
0.56% 0.56% kublk [kernel.kallsyms] [k] __io_submit_flush_completions
0.54% 0.54% kublk kublk [.] __ublk_io_handler_fn.isra.0
0.53% 0.53% kublk [kernel.kallsyms] [k] io_uring_cmd
0.52% 0.52% io_uring [kernel.kallsyms] [k] __io_prep_rw
0.52% 0.52% io_uring [kernel.kallsyms] [k] io_free_batch_list
0.50% 0.50% kublk [kernel.kallsyms] [k] io_uring_cmd_prep
0.49% 0.49% kublk [kernel.kallsyms] [k] blk_account_io_done.part.0
0.49% 0.49% io_uring [kernel.kallsyms] [k] __io_submit_flush_completions
- slab stat
# (cd /sys/kernel/slab/bio-256/ && find . -type f -exec grep -aH . {} \;)
./remote_node_defrag_ratio:100
./free_frozen:203789653 C0=13137513 C2=16103904 C4=5312681 C6=9805649 C8=14262027 C10=13676236 C12=8700700 C14=13041782 C16=11558292 C18=13258018 C19=2 C20=2813290 C22=7752577 C24=19173693 C26=16631916 C28=21707419 C29=2 C30=16853951 C31=1
./total_objects:6732 N1=3315 N5=3417
./cpuslab_flush:0
./alloc_fastpath:1284958471 C1=80252197 C3=80197810 C4=125 C5=82882536 C6=125 C7=83898247 C8=125 C9=81412735 C11=80400026 C12=125 C13=78664565 C14=44 C15=80954403 C17=80070327 C19=75310035 C20=125 C21=83788507 C22=81 C23=84943484 C25=78466239 C26=125 C27=78389061 C29=76890573 C31=78436849 C50=1 C60=1
./cpu_partial_free:37988123 C0=2275928 C2=2190868 C4=2789178 C6=2685497 C8=2282195 C10=2266792 C12=2340158 C14=2302589 C16=2359282 C18=2154683 C20=3028332 C22=2921916 C24=2103757 C26=2157902 C28=1972836 C30=2156210
./cpu_slabs:58 N1=28 N5=30
./objects:6167 N1=3092 N5=3075
./deactivate_full:0
./sheaf_return_slow:0
./objects_partial:608 N1=287 N5=321
./sheaf_return_fast:0
./cpu_partial:52
./cmpxchg_double_cpu_fail:1 C7=1
./free_slowpath:1361594822 C0=85109840 C2=85495921 C4=86775189 C6=88474098 C8=86495486 C10=85287670 C12=82701232 C14=85802194 C16=84711284 C18=79945983 C19=2 C20=87399505 C22=89361232 C24=84116440 C26=83560456 C28=82780090 C29=2 C30=83578197 C31=1
./barn_get_fail:0
./sheaf_prefill_oversize:0
./deactivate_to_tail:0
./skip_kfence:0
./min_partial:5
./order_fallback:0
./sheaf_capacity:0
./deactivate_empty:3616332 C0=269533 C2=262401 C4=116355 C6=112383 C8=271620 C10=266348 C12=278359 C14=271083 C16=264315 C18=242601 C20=170557 C22=159604 C24=231322 C26=240708 C28=220103 C30=239040
./sheaf_flush:0
./free_rcu_sheaf:0
./alloc_from_partial:11612237 C1=660211 C3=634301 C5=949155 C6=1 C7=914355 C9=661811 C11=658753 C13=679880 C15=669226 C17=684745 C19=624788 C20=1 C21=1037955 C22=1 C23=1002678 C25=611243 C27=625403 C29=571631 C31=626099
./sheaf_alloc:0
./sheaf_free:0
./sheaf_prefill_slow:0
./sheaf_prefill_fast:0
./poison:0
./red_zone:0
./free_cpu_sheaf:0
./free_slab:3616434 C0=269535 C2=262407 C4=116368 C6=112391 C8=271622 C10=266351 C12=278359 C14=271084 C16=264354 C18=242601 C20=170559 C22=159611 C24=231322 C26=240711 C28=220114 C30=239045
./slabs:132 N1=65 N5=67
./barn_get:0
./cpu_partial_node:22759400 C1=1312100 C3=1260562 C5=1821488 C6=2 C7=1752623 C9=1315094 C11=1309216 C13=1351244 C15=1329937 C17=1360857 C19=1241554 C20=2 C21=1968791 C22=2 C23=1898000 C25=1214784 C27=1242922 C29=1136091 C31=1244131
./alloc_slowpath:76640471 C1=4857913 C3=5298367 C4=3 C5=3892806 C6=3 C7=4575965 C8=3 C9=5082878 C11=4887906 C12=3 C13=4036796 C14=1 C15=4848003 C17=4641269 C19=4636149 C20=3 C21=3611116 C22=2 C23=4417922 C25=5650460 C26=3 C27=5171520 C29=5889792 C31=5141585 C50=1 C60=1 C62=1
./destroy_by_rcu:1
./free_rcu_sheaf_fail:0
./barn_put:0
./usersize:0
./sanity_checks:0
./barn_put_fail:0
./align:64
./alloc_node_mismatch:0
./deactivate_remote_frees:0
./alloc_slab:3616566 C1=303677 C3=296031 C4=3 C5=18366 C7=18301 C8=3 C9=305344 C11=298932 C12=3 C13=309156 C14=1 C15=303522 C17=313382 C19=288344 C21=21685 C23=21353 C25=277789 C26=3 C27=289631 C29=265057 C31=285980 C50=1 C60=1 C62=1
./free_remove_partial:102 C0=2 C2=6 C4=13 C6=8 C8=2 C10=3 C14=1 C16=39 C20=2 C22=7 C26=3 C28=11 C30=5
./aliases:0
./store_user:0
./trace:0
./reclaim_account:0
./order:2
./sheaf_refill:0
./object_size:256
./alloc_refill:38652283 C1=2581925 C3=3107474 C5=1103799 C7=1890686 C9=2800630 C11=2621006 C13=1696518 C15=2545318 C17=2282285 C19=2481464 C21=582686 C23=1495892 C25=3546646 C27=3013564 C29=3917013 C31=2985377
./alloc_cpu_sheaf:0
./cpu_partial_drain:12662698 C0=758642 C2=730289 C4=929725 C6=895165 C8=760731 C10=755597 C12=780052 C14=767529 C16=786427 C18=718227 C20=1009443 C22=973972 C24=701252 C26=719300 C28=657611 C30=718736
./free_fastpath:4 C1=2 C11=2
./hwcache_align:1
./cpu_partial_alloc:22759385 C1=1312100 C3=1260561 C5=1821486 C6=2 C7=1752623 C9=1315093 C11=1309215 C13=1351242 C15=1329937 C17=1360857 C19=1241553 C20=2 C21=1968790 C22=1 C23=1897999 C25=1214782 C27=1242922 C29=1136091 C31=1244129
./cmpxchg_double_fail:6247305 C0=396268 C1=16193 C2=484201 C3=11558 C4=198887 C5=7233 C6=336779 C7=7332 C8=444665 C9=11539 C10=403230 C11=10130 C12=258163 C13=6666 C14=389004 C15=9620 C16=357182 C17=9184 C18=378255 C19=9012 C20=103655 C21=2375 C22=260015 C23=6160 C24=552885 C25=22738 C26=464990 C27=11172 C28=592307 C29=23777 C30=451529 C31=10601
./deactivate_bypass:37988161 C1=2275987 C3=2190892 C4=2 C5=2789006 C6=2 C7=2685278 C8=2 C9=2282247 C11=2266899 C12=2 C13=2340277 C15=2302684 C17=2358983 C19=2154684 C20=2 C21=3028429 C22=1 C23=2922029 C25=2103813 C26=2 C27=2157955 C29=1972778 C31=2156207
./objs_per_slab:51
./partial:23 N1=10 N5=13
./slabs_cpu_partial:1122(44) C0=51(2) C2=25(1) C3=25(1) C4=76(3) C5=51(2) C6=51(2) C8=51(2) C9=25(1) C10=25(1) C11=25(1) C12=51(2) C13=51(2) C14=51(2) C16=25(1) C18=51(2) C19=25(1) C20=76(3) C21=25(1) C22=25(1) C23=25(1) C24=25(1) C25=51(2) C26=51(2) C28=76(3) C30=51(2) C31=51(2)
./free_add_partial:34371762 C0=2006393 C2=1928466 C4=2672820 C6=2573112 C8=2010573 C10=2000443 C12=2061797 C14=2031504 C16=2094966 C18=1912080 C20=2857772 C22=2762312 C24=1872434 C26=1917192 C28=1752730 C30=1917168
./slab_size:320
./cache_dma:0
./deactivate_to_head:0
2) v7.0-rc2(commit c107785c7e8d) + two patches
- IOPS: 23M
- perf profile
+ perf report --vmlinux=/root/git/linux/vmlinux --kallsyms=/proc/kallsyms --stdio --max-stack 0
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 858K of event 'cycles:P'
# Event count (approx.): 667558170118
#
# Children Self Command Shared Object Symbol
# ........ ........ ............... .................................. ..............................................
#
10.81% 10.81% kublk [kernel.kallsyms] [k] _copy_from_iter
5.23% 5.23% io_uring [kernel.kallsyms] [k] blk_mq_submit_bio
3.97% 3.97% io_uring [kernel.kallsyms] [k] __refill_objects_node
2.69% 2.69% io_uring [kernel.kallsyms] [k] io_rw_init_file
2.61% 2.61% io_uring [kernel.kallsyms] [k] blk_cgroup_bio_start
2.55% 2.55% io_uring [kernel.kallsyms] [k] blk_mq_rq_ctx_init.isra.0
2.52% 2.52% kublk [kernel.kallsyms] [k] blk_mq_free_request
2.45% 2.45% kublk [kernel.kallsyms] [k] ublk_dispatch_req
2.18% 2.18% io_uring [kernel.kallsyms] [k] __fsnotify_parent
1.87% 1.87% kublk [kernel.kallsyms] [k] __slab_free
1.82% 1.82% io_uring [kernel.kallsyms] [k] __io_read
1.77% 1.77% kublk [kernel.kallsyms] [k] slab_update_freelist.isra.0
1.72% 1.72% kublk [kernel.kallsyms] [k] __io_uring_cmd_done
1.70% 1.70% io_uring [kernel.kallsyms] [k] security_file_permission
1.68% 1.68% io_uring [kernel.kallsyms] [k] io_req_task_complete
1.51% 1.51% kublk [kernel.kallsyms] [k] ublk_start_io
1.32% 1.32% io_uring [kernel.kallsyms] [k] llist_reverse_order
1.30% 1.30% io_uring [kernel.kallsyms] [k] submit_bio_noacct_nocheck
1.22% 1.22% kublk [kernel.kallsyms] [k] blk_account_io_done.part.0
1.15% 1.15% io_uring [kernel.kallsyms] [k] kernel_init_pages
1.11% 1.11% kublk [kernel.kallsyms] [k] __local_bh_enable_ip
1.03% 1.03% io_uring [kernel.kallsyms] [k] io_import_reg_buf
1.03% 1.03% kublk [kernel.kallsyms] [k] ublk_ch_uring_cmd_local
1.01% 1.01% io_uring [kernel.kallsyms] [k] wbt_issue
0.97% 0.97% io_uring [kernel.kallsyms] [k] __submit_bio
0.81% 0.81% kublk [kernel.kallsyms] [k] avc_has_perm
0.80% 0.80% io_uring [kernel.kallsyms] [k] __rq_qos_issue
0.76% 0.76% kublk [kernel.kallsyms] [k] __blk_mq_free_request
0.73% 0.73% kublk kublk [.] ublk_queue_io_cmd
0.73% 0.73% io_uring io_uring [.] submitter_uring_fn
0.67% 0.67% io_uring [kernel.kallsyms] [k] kmem_cache_alloc_noprof
0.65% 0.65% kublk [kernel.kallsyms] [k] __io_submit_flush_completions
0.62% 0.62% kublk [kernel.kallsyms] [k] blk_stat_add
0.62% 0.62% kublk [kernel.kallsyms] [k] __ublk_complete_rq
0.61% 0.61% kublk [kernel.kallsyms] [k] blk_update_request
0.60% 0.60% kublk [kernel.kallsyms] [k] __blk_mq_end_request
0.58% 0.58% io_uring [kernel.kallsyms] [k] bio_alloc_bioset
0.56% 0.56% kublk [kernel.kallsyms] [k] __rcu_read_lock
0.54% 0.54% io_uring [kernel.kallsyms] [k] io_req_rw_complete
0.54% 0.54% io_uring [kernel.kallsyms] [k] io_free_batch_list
0.53% 0.53% io_uring [kernel.kallsyms] [k] __io_submit_flush_completions
0.53% 0.53% io_uring [kernel.kallsyms] [k] io_init_req
0.53% 0.53% io_uring [kernel.kallsyms] [k] __blkdev_direct_IO_async
0.53% 0.53% kublk [kernel.kallsyms] [k] io_issue_sqe
0.51% 0.51% io_uring [kernel.kallsyms] [k] blk_mq_start_request
0.51% 0.51% kublk [kernel.kallsyms] [k] io_req_local_work_add
0.51% 0.51% kublk [kernel.kallsyms] [k] kmem_cache_free
0.49% 0.49% io_uring [kernel.kallsyms] [k] io_import_fixed
- slab stat
# (cd /sys/kernel/slab/bio-256/ && find . -type f -exec grep -aH . {} \;)
./remote_node_defrag_ratio:100
./total_objects:9078 N1=4233 N5=4845
./alloc_fastpath:897715187 C1=45250242 C3=50602079 C5=89955493 C6=128 C7=81923744 C8=128 C9=46275792 C10=128 C11=46037573 C12=128 C13=53037806 C14=128 C15=49291969 C16=128 C17=49716073 C18=4 C19=45475417 C20=130 C21=75693223 C22=128 C23=69595236 C24=128 C25=52992066 C26=1 C27=51082176 C28=66 C29=44931239 C30=2 C31=45853827 C48=2 C59=2 C63=1
./cpu_slabs:0
./objects:5404 N1=2665 N5=2739
./sheaf_return_slow:0
./objects_partial:3772 N1=1849 N5=1923
./sheaf_return_fast:0
./cpu_partial:0
./free_slowpath:580544104 C0=45249992 C2=50601817 C4=2 C6=2 C8=46275666 C10=46037443 C12=53037685 C14=49291858 C16=49715937 C18=45475167 C20=13 C22=21 C24=52991949 C26=51081920 C28=44931147 C30=45853478 C49=2 C59=2 C61=2 C63=1
./barn_get_fail:20733914 C1=1616081 C3=1807218 C5=23 C6=1 C7=10 C8=5 C9=1652707 C10=5 C11=1644200 C12=5 C13=1894208 C14=5 C15=1760428 C16=5 C17=1775575 C18=1 C19=1624123 C20=4 C21=6 C22=5 C23=21 C24=5 C25=1892574 C26=1 C27=1824364 C28=3 C29=1604692 C31=1637636 C48=1 C59=1 C63=1
./sheaf_prefill_oversize:0
./skip_kfence:0
./min_partial:5
./order_fallback:0
./sheaf_capacity:28
./sheaf_flush:84 C4=28 C20=28 C22=28
./free_rcu_sheaf:0
./sheaf_alloc:120 C1=1 C3=1 C4=10 C5=1 C6=3 C8=1 C9=1 C10=1 C11=1 C12=1 C13=1 C14=1 C15=2 C16=1 C17=1 C18=65 C19=1 C20=6 C22=7 C23=1 C24=1 C25=1 C26=1 C27=2 C28=1 C29=3 C31=1 C48=1 C59=1 C63=1
./sheaf_free:0
./sheaf_prefill_slow:0
./sheaf_prefill_fast:0
./poison:0
./red_zone:0
./free_slab:2252626 C0=217768 C2=178064 C8=177352 C10=188763 C12=172593 C14=195156 C16=189975 C18=178757 C24=179036 C26=187498 C28=189290 C30=198374
./slabs:178 N1=83 N5=95
./barn_get:11327366 C5=3212674 C6=4 C7=2925838 C20=1 C21=2703324 C23=2485524 C31=1
./alloc_slowpath:0
./destroy_by_rcu:1
./free_rcu_sheaf_fail:0
./barn_put:11327384 C4=3212682 C6=2925843 C20=2703321 C22=2485537 C28=1
./usersize:0
./sanity_checks:0
./barn_put_fail:3 C4=1 C20=1 C22=1
./align:64
./alloc_node_mismatch:0
./alloc_slab:2252805 C1=175514 C3=194092 C5=9 C8=2 C9=178894 C10=1 C11=177472 C12=5 C13=202580 C14=1 C15=190184 C16=2 C17=194266 C18=1 C19=179219 C20=1 C24=1 C25=205268 C27=197542 C29=177638 C30=1 C31=180109 C48=1 C59=1 C63=1
./free_remove_partial:2252626 C0=217768 C2=178064 C8=177352 C10=188763 C12=172593 C14=195156 C16=189975 C18=178757 C24=179036 C26=187498 C28=189290 C30=198374
./aliases:0
./store_user:0
./trace:0
./reclaim_account:0
./order:2
./sheaf_refill:580549592 C1=45250268 C3=50602104 C5=644 C6=28 C7=280 C8=140 C9=46275796 C10=140 C11=46037600 C12=140 C13=53037824 C14=140 C15=49291984 C16=140 C17=49716100 C18=28 C19=45475444 C20=112 C21=168 C22=140 C23=588 C24=140 C25=52992072 C26=28 C27=51082192 C28=140 C29=44931264 C30=56 C31=45853808 C48=28 C59=28 C63=28
./object_size:256
./free_fastpath:317166967 C4=89955177 C6=81923631 C20=75693051 C22=69595106 C53=2
./hwcache_align:1
./cmpxchg_double_fail:2518173 C0=176664 C1=2695 C2=217757 C3=3198 C5=1 C7=2 C8=201087 C9=2783 C10=199017 C11=2839 C12=222146 C13=3146 C14=215883 C15=3113 C16=208327 C17=3279 C18=199045 C19=3150 C21=1 C24=225357 C25=3445 C26=218118 C27=3183 C28=197089 C29=3083 C30=200710 C31=3055
./objs_per_slab:51
./partial:146 N1=67 N5=79
./slabs_cpu_partial:0(0)
./free_add_partial:29301755 C0=958223 C1=1323669 C2=1094832 C3=1480537 C4=1 C5=11 C7=7 C8=990458 C9=1354237 C10=983110 C11=1348401 C12=1142550 C13=1553516 C14=1063308 C15=1441153 C16=1029143 C17=1463851 C18=949985 C19=1335529 C20=7 C21=3 C22=7 C23=17 C24=1107242 C25=1562991 C26=1056543 C27=1505571 C28=939243 C29=1319586 C30=948581 C31=1349443
./slab_size:320
Thanks,
Ming
prev parent reply other threads:[~2026-03-05 15:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-24 2:52 Ming Lei
2026-02-24 5:00 ` Harry Yoo
2026-02-24 9:07 ` Ming Lei
2026-02-25 5:32 ` Hao Li
2026-02-25 6:54 ` Harry Yoo
2026-02-25 7:06 ` Hao Li
2026-02-25 7:19 ` Harry Yoo
2026-02-25 8:19 ` Hao Li
2026-02-25 8:41 ` Harry Yoo
2026-02-25 8:54 ` Hao Li
2026-02-25 8:21 ` Harry Yoo
2026-02-24 6:51 ` Hao Li
2026-02-24 7:10 ` Harry Yoo
2026-02-24 7:41 ` Hao Li
2026-02-24 20:27 ` Vlastimil Babka
2026-02-25 5:24 ` Harry Yoo
2026-02-25 8:45 ` Vlastimil Babka (SUSE)
2026-02-25 9:31 ` Ming Lei
2026-02-25 11:29 ` Vlastimil Babka (SUSE)
2026-02-25 12:24 ` Ming Lei
2026-02-25 13:22 ` Vlastimil Babka (SUSE)
2026-02-26 18:02 ` Vlastimil Babka (SUSE)
2026-02-27 9:23 ` Ming Lei
2026-03-05 13:05 ` Vlastimil Babka (SUSE)
2026-03-05 15:48 ` Ming Lei [this message]
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