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| author | Alex Gorrod <alexg@wiredtiger.com> | 2015-03-24 16:53:28 +1100 |
|---|---|---|
| committer | Alex Gorrod <alexg@wiredtiger.com> | 2015-03-24 16:53:28 +1100 |
| commit | 065a435f6b1d1b3fcb640d59c3109d0c2e24d308 (patch) | |
| tree | 42afc56044124d804a9d482297ff9e240c542164 /dist | |
| parent | 62ece8e80b452b2b19db718505b22488d9b7639b (diff) | |
| download | mongo-065a435f6b1d1b3fcb640d59c3109d0c2e24d308.tar.gz | |
Add statistics to track internal/overflow/leaf pages in cache.
It is often useful to know if a cache is full of internal pages. I
could have added page count tracking, but byte count tracking seems
more useful (enough to justify the extra performance overhead).
Diffstat (limited to 'dist')
| -rw-r--r-- | dist/stat_data.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/dist/stat_data.py b/dist/stat_data.py index 8768a24700b..f133ab899ea 100644 --- a/dist/stat_data.py +++ b/dist/stat_data.py @@ -148,8 +148,17 @@ connection_stats = [ 'tracked dirty bytes in the cache', 'no_clear,no_scale'), CacheStat('cache_bytes_inuse', 'bytes currently in the cache', 'no_clear,no_scale'), + CacheStat('cache_bytes_internal', + 'tracked bytes belonging to internal pages in the cache', + 'no_clear,no_scale'), + CacheStat('cache_bytes_leaf', + 'tracked bytes belonging to leaf pages in the cache', + 'no_clear,no_scale'), CacheStat('cache_bytes_max', 'maximum bytes configured', 'no_clear,no_scale'), + CacheStat('cache_bytes_overflow', + 'tracked bytes belonging to overflow pages in the cache', + 'no_clear,no_scale'), CacheStat('cache_bytes_read', 'bytes read into cache'), CacheStat('cache_bytes_write', 'bytes written from cache'), CacheStat('cache_eviction_app', 'pages evicted by application threads'), |