diff options
| -rw-r--r-- | include/trace/events/compaction.h | 42 | ||||
| -rw-r--r-- | mm/compaction.c | 4 |
2 files changed, 46 insertions, 0 deletions
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h index fde1b3e94c7..06f544ef2f6 100644 --- a/include/trace/events/compaction.h +++ b/include/trace/events/compaction.h @@ -67,6 +67,48 @@ TRACE_EVENT(mm_compaction_migratepages, __entry->nr_failed) ); +TRACE_EVENT(mm_compaction_begin, + TP_PROTO(unsigned long zone_start, unsigned long migrate_start, + unsigned long free_start, unsigned long zone_end), + + TP_ARGS(zone_start, migrate_start, free_start, zone_end), + + TP_STRUCT__entry( + __field(unsigned long, zone_start) + __field(unsigned long, migrate_start) + __field(unsigned long, free_start) + __field(unsigned long, zone_end) + ), + + TP_fast_assign( + __entry->zone_start = zone_start; + __entry->migrate_start = migrate_start; + __entry->free_start = free_start; + __entry->zone_end = zone_end; + ), + + TP_printk("zone_start=%lu migrate_start=%lu free_start=%lu zone_end=%lu", + __entry->zone_start, + __entry->migrate_start, + __entry->free_start, + __entry->zone_end) +); + +TRACE_EVENT(mm_compaction_end, + TP_PROTO(int status), + + TP_ARGS(status), + + TP_STRUCT__entry( + __field(int, status) + ), + + TP_fast_assign( + __entry->status = status; + ), + + TP_printk("status=%d", __entry->status) +); #endif /* _TRACE_COMPACTION_H */ diff --git a/mm/compaction.c b/mm/compaction.c index f58bcd016f4..a03995edded 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -970,6 +970,8 @@ static int compact_zone(struct zone *zone, struct compact_control *cc) if (compaction_restarting(zone, cc->order) && !current_is_kswapd()) __reset_isolation_suitable(zone); + trace_mm_compaction_begin(start_pfn, cc->migrate_pfn, cc->free_pfn, end_pfn); + migrate_prep_local(); while ((ret = compact_finished(zone, cc)) == COMPACT_CONTINUE) { @@ -1015,6 +1017,8 @@ out: cc->nr_freepages -= release_freepages(&cc->freepages); VM_BUG_ON(cc->nr_freepages != 0); + trace_mm_compaction_end(ret); + return ret; } |