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authorMarco Elver <elver@google.com>2024-01-18 12:01:29 +0100
committerAndrew Morton <akpm@linux-foundation.org>2024-01-25 23:52:21 -0800
commitc2a292545cd43dcab86d5290ed95b006f1cefe90 (patch)
tree2dd6cc85898413bc8fd8f72ec11803a92ba5eea4 /CREDITS
parentf6564fce256a3944aa1bc76cb3c40e792d97c1eb (diff)
stackdepot: add stats counters exported via debugfs
Add a few basic stats counters for stack depot that can be used to derive if stack depot is working as intended. This is a snapshot of the new stats after booting a system with a KASAN-enabled kernel: $ cat /sys/kernel/debug/stackdepot/stats pools: 838 allocations: 29861 frees: 6561 in_use: 23300 freelist_size: 1840 Generally, "pools" should be well below the max; once the system is booted, "in_use" should remain relatively steady. Link: https://lkml.kernel.org/r/20240118110216.2539519-1-elver@google.com Signed-off-by: Marco Elver <elver@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Alexander Potapenko <glider@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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