diff mbox series

[3/9] mm/damon/core: use nr_accesses_bp as a source of damos_before_apply tracepoint

Message ID 20230916020945.47296-4-sj@kernel.org
State New
Headers
Series mm/damon: implement DAMOS apply intervals |

Commit Message

SeongJae Park Sept. 16, 2023, 2:09 a.m. UTC 
  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.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 include/trace/events/damon.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h
index 19930bb7af9a..23200aabccac 100644
--- a/include/trace/events/damon.h
+++ b/include/trace/events/damon.h
@@ -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;
 	),