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authorJoonsoo Kim <iamjoonsoo.kim@lge.com>2015-02-12 02:27:06 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 04:06:04 +0300
commit837d026d560c5ef26abeca0441713d82e4e82cad (patch)
tree074e7941df8d83fc7fdb0680883989c84c3d654c /include/trace
parente34d85f0e3c60f7226e5589898b7c7c5cd2a4f02 (diff)
downloadlinux-837d026d560c5ef26abeca0441713d82e4e82cad.tar.xz
mm/compaction: more trace to understand when/why compaction start/finish
It is not well analyzed that when/why compaction start/finish or not. With these new tracepoints, we can know much more about start/finish reason of compaction. I can find following bug with these tracepoint. http://www.spinics.net/lists/linux-mm/msg81582.html Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: 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/trace')
-rw-r--r--include/trace/events/compaction.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h
index 139020b55612..d46535801f63 100644
--- a/include/trace/events/compaction.h
+++ b/include/trace/events/compaction.h
@@ -164,6 +164,80 @@ TRACE_EVENT(mm_compaction_end,
compaction_status_string[__entry->status])
);
+TRACE_EVENT(mm_compaction_try_to_compact_pages,
+
+ TP_PROTO(
+ int order,
+ gfp_t gfp_mask,
+ enum migrate_mode mode),
+
+ TP_ARGS(order, gfp_mask, mode),
+
+ TP_STRUCT__entry(
+ __field(int, order)
+ __field(gfp_t, gfp_mask)
+ __field(enum migrate_mode, mode)
+ ),
+
+ TP_fast_assign(
+ __entry->order = order;
+ __entry->gfp_mask = gfp_mask;
+ __entry->mode = mode;
+ ),
+
+ TP_printk("order=%d gfp_mask=0x%x mode=%d",
+ __entry->order,
+ __entry->gfp_mask,
+ (int)__entry->mode)
+);
+
+DECLARE_EVENT_CLASS(mm_compaction_suitable_template,
+
+ TP_PROTO(struct zone *zone,
+ int order,
+ int ret),
+
+ TP_ARGS(zone, order, ret),
+
+ TP_STRUCT__entry(
+ __field(int, nid)
+ __field(char *, name)
+ __field(int, order)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->nid = zone_to_nid(zone);
+ __entry->name = (char *)zone->name;
+ __entry->order = order;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("node=%d zone=%-8s order=%d ret=%s",
+ __entry->nid,
+ __entry->name,
+ __entry->order,
+ compaction_status_string[__entry->ret])
+);
+
+DEFINE_EVENT(mm_compaction_suitable_template, mm_compaction_finished,
+
+ TP_PROTO(struct zone *zone,
+ int order,
+ int ret),
+
+ TP_ARGS(zone, order, ret)
+);
+
+DEFINE_EVENT(mm_compaction_suitable_template, mm_compaction_suitable,
+
+ TP_PROTO(struct zone *zone,
+ int order,
+ int ret),
+
+ TP_ARGS(zone, order, ret)
+);
+
#endif /* _TRACE_COMPACTION_H */
/* This part must be outside protection */