Confluence provides statistics about its internal caches that allow you to track the size and hit ratio of each cache and tune it for better performance (if necessary). See Performance Tuning for more information.
To view the cache statistics, go to the 'Administration Console' and click 'Cache Statistics' in the left panel. There you will find a list of all objects cached within Confluence. Below is an example for one of the most frequently used caches i.e. the ContentEntityObject.
com.atlassian.confluence.core.ContentEntityObject (Alive): flush
_____________________ACCESSES__________________
| Size | Total | Hits | Not Found | Expired | Ratio |
|---|---|---|---|---|---|
| 5000 | 24827480 | 11332536 | 13494944 | 0 | 45% |
About the generated numbers :
| Size: | the max number of items in the cache (can be configured in ehcache.xml) |
|---|---|
| Accesses, Total: | the number of reads from the cache |
| Accesses, Hits: | the number of reads accessing cache where required content existed |
| Accesses, Not Found: | the number of reads accessing cache where required content was not found |
| Accesses, Expired: | the number of items which were evicted from the cache, due to age or replacement by new entries (timeout or expired) |
| Ratio: | the percentage of reads which were hits |
For instance to calculate Ratio :
Hits/Total x 100 = Ratio 11332536/24827480 = 0.45645131 x 100 = 45%
and to calculate Total :
Total = Hits + Not Found + Expired 24827480 = 11332536 + 13494944 + 0
flush - clears cache
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The clustered versions of Confluence Confluence 2.3 use distributed cache called Tangosol Coherence. |
Performance Tuning
If you need to tune your application when under high usage, you may like to review this document for suggestions.
RELATED TOPICS
Cache Statistics
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Viewing and Editing License Details
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Viewing System Information
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