In patch "mm/damon: add a tracepoint", it adds a
tracepoint for DAMON, it can monitor each region
for each aggregation interval, Now the region add
a new 'age' variable, some primitive would calculate
the priority of each region as a weight, there put it
into tracepoint, so we can easily track the change of
its value through perf or damon-tools.
Signed-off-by: Xin Hao <xhao@xxxxxxxxxxxxxxxxx>
---
include/trace/events/damon.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h
index 2f422f4f1fb9..99ffa601e351 100644
--- a/include/trace/events/damon.h
+++ b/include/trace/events/damon.h
@@ -22,6 +22,7 @@ TRACE_EVENT(damon_aggregated,
__field(unsigned long, start)
__field(unsigned long, end)
__field(unsigned int, nr_accesses)
+ __field(unsigned int, age)
),
TP_fast_assign(
@@ -30,11 +31,13 @@ TRACE_EVENT(damon_aggregated,
__entry->start = r->ar.start;
__entry->end = r->ar.end;
__entry->nr_accesses = r->nr_accesses;
+ __entry->age = r->age;
),
- TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u",
+ TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u %u",
__entry->target_id, __entry->nr_regions,
- __entry->start, __entry->end, __entry->nr_accesses)
+ __entry->start, __entry->end,
+ __entry->nr_accesses, __entry->age)
);
#endif /* _TRACE_DAMON_H */
--
2.31.0
