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 +b/Kj/2e AldnYGTF85qYk8/JBelrCY08ocOBamXcCgPbsQUyBPPtyNIs3XdnBT/TIktZEVSBNXEDJIGotRa2y8IhX7uXunf+XJn0J0iWc1RcDCfhzSh89gGUDeSLNNgoSI61YJmK74k5cZ07z0cymO8dJ31qLxY62IdIdVb6n49uzJzaY7D32AotxhF8s/8NXc0CY5o/DrHlFLvoCefspcBnYtrjlEGM6H3imEltYr9u38/XN2IsjyYzdiA2T5MEJAZisxaR9J6zW/f/PqrJJDDOYB8AzQtTaSZR4+ga492Nh8MhwiFwFYjTIPMgioBHKYECvnc05fPl3/NK8/9j1pImnchV6P10TkVhZgc5Q2kThWG2BPzpZ2Uz9pUTr91jvGD/w0mqkGnHd5Mhd79XKvNr394bkeEOEo+Zwm2e8Dtv85q159RsW7O934Lsj9OUzzSarZUbLZbLIiSIFzDOZQyvo9s2pXMjKrwK5fq2CVrcdFyFCVXS0SqFm4rc2yvXET0lxdBO2kZikHF8Yn2xhif6TBL+a0gh9ahpJ9PcKiDz15SHKL4EIgTQAncu6omgoH8mELoSJMj+FWnu3503yaKWUo+DRzN5cfWwMCKk+88PUFcR0EjcLdLHA7XivCEbWJS4UiTYBmzCd0LCmfwXbB/H0gj8u8Z02Jw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000375, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Apr 07, 2025 at 01:18:08PM +0900, Harry Yoo wrote: > With this series, `slabinfo -r` now prints sheaves statistics (if enabled). > Written on top of slub-percpu-sheaves-v4r0 [1] branch. > > Q1: Vlastimil, do you want to integrate this into the sheaves series or do > you want me to send it as a follow-up series after sheaves land mainline? > > Q2: 'sheaf_swap' does not fit into the table because SLUB swaps sheaves both > at alloc and free. Probably split the counter? Q3: Having 'Add sheaves to the barn' & 'Remove sheaves from the barn' counters might help better understand the behavior? (just like 'Add partial' / 'Remove partial' pair in the normal SLUB path). -- Cheers, Harry (formerly known as Hyeonggon) > [1] https://git.kernel.org/pub/scm/linux/kernel/git/vbabka/linux.git/log/?h=slub-percpu-sheaves-v4r0 > > $ sudo ./slabinfo -r maple_node > Slabcache: maple_node Aliases: 0 Order : 1 Objects: 8268 > > [... snip ...] > > Slab Perf Counter Alloc Free %Al %Fr > ---------------------------------------------- > Fastpath 258760 5109 93 3 > Slowpath 18205 126605 6 96 > Page Alloc 903 520 0 0 > Add partial 0 14600 0 11 > Remove partial 3472 420 1 0 > Cpu partial list 12235 16577 4 12 > RemoteObj/SlabFrozen 0 5969 0 4 > Total 276965 131714 > > > Slab Sheaves Counter Alloc Free %Al %Fr %Fa > ------------------------------------------------------- > Served from sheaves 1805673 580161 86 93 N/A > Sheaves refill 236384 N/A 13 N/A N/A > Sheaves alloc 3872 3794 0 0 N/A > Free to RCU sheaves N/A 1255815 N/A 68 0 > Main sheaf flush N/A 0 N/A 0 N/A > Other sheaves flush N/A 265600 N/A 14 N/A > > Slab Deactivation Occurrences % > ------------------------------------------- > Slab full 0 0% > Slab empty 100 0% > Moved to head of partial list 0 0% > Moved to tail of partial list 0 0% > Deactivation bypass 16588 99% > Refilled from foreign frees 1595 9% > Node mismatch 0 0% > > Harry Yoo (2): > mm/slab: add sheaves_enabled read-only sysfs file > tools/mm/slabinfo: add support for sheaves stats > > mm/slub.c | 10 ++++++++ > tools/mm/slabinfo.c | 62 +++++++++++++++++++++++++++++++++++++++++++-- > 2 files changed, 70 insertions(+), 2 deletions(-) > > -- > 2.43.0 >