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mm/damon/core: use nr_accesses_bp as a source of damos_before_apply tracepoint

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damos_before_apply tracepoint is exposing access rate of DAMON regions
using nr_accesses field of regions, which was actually used by DAMOS in
the past.  However, it has changed to use nr_accesses_bp instead.  Update
the tracepoint to expose the value that DAMOS is really using.

Note that it doesn't expose the value as is in the basis point, but after
converting it to the natural number by dividing it by 10,000.  Therefore
this change doesn't make user-visible behavioral differences.

Link: https://lkml.kernel.org/r/20230916020945.47296-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2023-09-16 02:09:39 +00:00 committed by Andrew Morton
parent e7639bb48d
commit a72217ad59
1 changed files with 1 additions and 1 deletions
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2
include/trace/events/damon.h
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@ -36,7 +36,7 @@ TRACE_EVENT_CONDITION(damos_before_apply,
__entry->target_idx = target_idx;
__entry->start = r->ar.start;
__entry->end = r->ar.end;
__entry->nr_accesses = r->nr_accesses;
__entry->nr_accesses = r->nr_accesses_bp / 10000;
__entry->age = r->age;
__entry->nr_regions = nr_regions;
),