diff options
| author | Baolin Wang <baolin.wang@linux.alibaba.com> | 2023-05-25 20:54:00 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-09 16:25:43 -0700 |
| commit | 447ba88658faa8dbfd29d557daa38b7d88f460ec (patch) | |
| tree | 7fd79bfd55176801ce5f106d4fda5361206e7913 /include/trace | |
| parent | 8b71b499ff98fdcda7efefc146841a8b4d26813d (diff) | |
| download | lwn-447ba88658faa8dbfd29d557daa38b7d88f460ec.tar.gz lwn-447ba88658faa8dbfd29d557daa38b7d88f460ec.zip | |
mm: compaction: add trace event for fast freepages isolation
The fast_isolate_freepages() can also isolate freepages, but we can not
know the fast isolation efficiency to understand the fast isolation
pressure. So add a trace event to show some numbers to help to understand
the efficiency for fast freepages isolation.
Link: https://lkml.kernel.org/r/78d2932d0160d122c15372aceb3f2c45460a17fc.1685018752.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/compaction.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h index 3313eb83c117..2b2a975efd20 100644 --- a/include/trace/events/compaction.h +++ b/include/trace/events/compaction.h @@ -64,6 +64,17 @@ DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages, TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken) ); +DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_fast_isolate_freepages, + + TP_PROTO( + unsigned long start_pfn, + unsigned long end_pfn, + unsigned long nr_scanned, + unsigned long nr_taken), + + TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken) +); + #ifdef CONFIG_COMPACTION TRACE_EVENT(mm_compaction_migratepages, |