linux-kernel - [RFC PATCH V1 5/5] mm/damon/tracepoint: Add 'damon

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Message-Id: <ccf161f17c8e5d39d5d41003a4ec8b1d01c2aa8e.1645024354.git.xhao@linux.alibaba.com>
Date:   Wed, 16 Feb 2022 16:30:41 +0800
From:   Xin Hao <xhao@...ux.alibaba.com>
To:     sj@...nel.org
Cc:     xhao@...ux.alibaba.com, rongwei.wang@...ux.alibaba.com,
        akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH V1 5/5] mm/damon/tracepoint: Add 'damon_region' NUMA access statistics support

This patch is used to support 'damon_region' NUMA access for tracepoint,
The purpose of this is to facilitate users to obtain the numa access
status of 'damon_region' through perf or damo tools.

Signed-off-by: Xin Hao <xhao@...ux.alibaba.com>
Signed-off-by: Rongwei Wang <rongwei.wang@...ux.alibaba.com>
---
 include/trace/events/damon.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h
index c79f1d4c39af..687b7aba751e 100644
--- a/include/trace/events/damon.h
+++ b/include/trace/events/damon.h
@@ -23,6 +23,8 @@ TRACE_EVENT(damon_aggregated,
 		__field(unsigned long, end)
 		__field(unsigned int, nr_accesses)
 		__field(unsigned int, age)
+		__field(unsigned long, local)
+		__field(unsigned long, remote)
 	),
 
 	TP_fast_assign(
@@ -32,12 +34,15 @@ TRACE_EVENT(damon_aggregated,
 		__entry->end = r->ar.end;
 		__entry->nr_accesses = r->nr_accesses;
 		__entry->age = r->age;
+		__entry->local = r->local;
+		__entry->remote = r->remote;
 	),
 
-	TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u %u",
+	TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u %u %lu %lu",
 			__entry->target_id, __entry->nr_regions,
 			__entry->start, __entry->end,
-			__entry->nr_accesses, __entry->age)
+			__entry->nr_accesses, __entry->age,
+			__entry->local, __entry->remote)
 );
 
 #endif /* _TRACE_DAMON_H */
-- 
2.27.0