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authorJoonsoo Kim <iamjoonsoo.kim@lge.com>2015-02-11 15:27:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-11 17:06:04 -0800
commite34d85f0e3c60f7226e5589898b7c7c5cd2a4f02 (patch)
tree84b0daa5ee68e08134f6309a45f7106c463decbd /include
parent16c4a097a035c01809aa0c0abd458ca1fe4ff3d0 (diff)
downloadlinux-e34d85f0e3c60f7226e5589898b7c7c5cd2a4f02.tar.bz2
mm/compaction: print current range where compaction work
It'd be useful to know current range where compaction work for detailed analysis. With it, we can know pageblock where we actually scan and isolate, and, how much pages we try in that pageblock and can guess why it doesn't become freepage with pageblock order roughly. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@suse.de> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/trace/events/compaction.h30
1 files changed, 23 insertions, 7 deletions
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h
index 839f6fac921a..139020b55612 100644
--- a/include/trace/events/compaction.h
+++ b/include/trace/events/compaction.h
@@ -11,39 +11,55 @@
DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
- TP_PROTO(unsigned long nr_scanned,
+ TP_PROTO(
+ unsigned long start_pfn,
+ unsigned long end_pfn,
+ unsigned long nr_scanned,
unsigned long nr_taken),
- TP_ARGS(nr_scanned, nr_taken),
+ TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken),
TP_STRUCT__entry(
+ __field(unsigned long, start_pfn)
+ __field(unsigned long, end_pfn)
__field(unsigned long, nr_scanned)
__field(unsigned long, nr_taken)
),
TP_fast_assign(
+ __entry->start_pfn = start_pfn;
+ __entry->end_pfn = end_pfn;
__entry->nr_scanned = nr_scanned;
__entry->nr_taken = nr_taken;
),
- TP_printk("nr_scanned=%lu nr_taken=%lu",
+ TP_printk("range=(0x%lx ~ 0x%lx) nr_scanned=%lu nr_taken=%lu",
+ __entry->start_pfn,
+ __entry->end_pfn,
__entry->nr_scanned,
__entry->nr_taken)
);
DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
- TP_PROTO(unsigned long nr_scanned,
+ TP_PROTO(
+ unsigned long start_pfn,
+ unsigned long end_pfn,
+ unsigned long nr_scanned,
unsigned long nr_taken),
- TP_ARGS(nr_scanned, nr_taken)
+ TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
);
DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages,
- TP_PROTO(unsigned long nr_scanned,
+
+ TP_PROTO(
+ unsigned long start_pfn,
+ unsigned long end_pfn,
+ unsigned long nr_scanned,
unsigned long nr_taken),
- TP_ARGS(nr_scanned, nr_taken)
+ TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
);
TRACE_EVENT(mm_compaction_migratepages,