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| author | Alex Gorrod <alexander.gorrod@mongodb.com> | 2016-10-18 15:14:27 +1100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-10-18 15:14:27 +1100 |
| commit | 940a7aba6a2c37f878114e8280eabf161a212deb (patch) | |
| tree | 07da6e852354deb0ea455342590bffc682fdbc2e /src/support | |
| parent | 349f5349eaaeab99f7a7178e03ab34f8ff0ebd0c (diff) | |
| download | mongo-940a7aba6a2c37f878114e8280eabf161a212deb.tar.gz | |
WT-2976 Add a statistic tracking how long app threads spend reading and writing (#3096)
Diffstat (limited to 'src/support')
| -rw-r--r-- | src/support/stat.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/support/stat.c b/src/support/stat.c index d6457ed64bb..6e8e218a0db 100644 --- a/src/support/stat.c +++ b/src/support/stat.c @@ -639,6 +639,10 @@ static const char * const __stats_connection_desc[] = { "block-manager: bytes written for checkpoint", "block-manager: mapped blocks read", "block-manager: mapped bytes read", + "cache: application threads page read from disk to cache count", + "cache: application threads page read from disk to cache time (usecs)", + "cache: application threads page write from cache to disk count", + "cache: application threads page write from cache to disk time (usecs)", "cache: bytes belonging to page images in the cache", "cache: bytes currently in the cache", "cache: bytes not belonging to page images in the cache", @@ -901,6 +905,10 @@ __wt_stat_connection_clear_single(WT_CONNECTION_STATS *stats) stats->block_byte_write_checkpoint = 0; stats->block_map_read = 0; stats->block_byte_map_read = 0; + stats->cache_read_app_count = 0; + stats->cache_read_app_time = 0; + stats->cache_write_app_count = 0; + stats->cache_write_app_time = 0; /* not clearing cache_bytes_image */ /* not clearing cache_bytes_inuse */ /* not clearing cache_bytes_other */ @@ -1156,6 +1164,11 @@ __wt_stat_connection_aggregate( WT_STAT_READ(from, block_byte_write_checkpoint); to->block_map_read += WT_STAT_READ(from, block_map_read); to->block_byte_map_read += WT_STAT_READ(from, block_byte_map_read); + to->cache_read_app_count += WT_STAT_READ(from, cache_read_app_count); + to->cache_read_app_time += WT_STAT_READ(from, cache_read_app_time); + to->cache_write_app_count += + WT_STAT_READ(from, cache_write_app_count); + to->cache_write_app_time += WT_STAT_READ(from, cache_write_app_time); to->cache_bytes_image += WT_STAT_READ(from, cache_bytes_image); to->cache_bytes_inuse += WT_STAT_READ(from, cache_bytes_inuse); to->cache_bytes_other += WT_STAT_READ(from, cache_bytes_other); |