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| author | Yang Shi <yang.shi@linux.alibaba.com> | 2018-02-06 02:18:25 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-02-13 12:58:58 +0300 |
| commit | bd9dcd046509cd5355605e43791eacee8bf5e40f (patch) | |
| tree | 3b40437e4a2357eb74e321b4b11934bea31cc955 /sound | |
| parent | 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff) | |
| download | linux-bd9dcd046509cd5355605e43791eacee8bf5e40f.tar.xz | |
debugobjects: Export max loops counter
__debug_check_no_obj_freed() can be an expensive operation depending on the
size of memory freed. It already exports the maximum chain walk length via
debugfs, but this only records the maximum of a single memory chunk.
Though there is no information about the total number of objects inspected
for a __debug_check_no_obj_freed() operation, which might be significantly
larger when a huge memory region is freed.
Aggregate the number of objects inspected for a single invocation of
__debug_check_no_obj_freed() and export it via sysfs.
The resulting output of /sys/kernel/debug/debug_objects/stats looks like:
max_chain :121
max_checked :543267
warnings :0
fixups :0
pool_free :1764
pool_min_free :341
pool_used :86438
pool_max_used :268887
objs_allocated:6068254
objs_freed :5981076
[ tglx: Renamed the variable to max_checked and adjusted changelog ]
Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: longman@redhat.com
Link: https://lkml.kernel.org/r/1517872708-24207-2-git-send-email-yang.shi@linux.alibaba.com
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions