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From "Przemo Pakulski (JIRA)" <j...@apache.org>
Subject [jira] Created: (JCR-1112) CacheManager interval between recalculation of cache sizes should be configurable
Date Tue, 04 Sep 2007 16:32:47 GMT
CacheManager interval between recalculation of cache sizes should be configurable
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                 Key: JCR-1112
                 URL: https://issues.apache.org/jira/browse/JCR-1112
             Project: Jackrabbit
          Issue Type: New Feature
          Components: core
    Affects Versions: 1.4
            Reporter: Przemo Pakulski
            Priority: Minor


Currently interval between recaluclation of cahce size is hard coded to 1000 ms. Resizing/recalculation
of cache size is quite expensive method (especially getMemoryUsed on MLRUItemStateCache is
time consuming)

Depending on the configuration, we realized that under some load up to 10-15% percent of CPU
time (profiler metrics) could be spend doing such recalculations. It does not seem to be needed
to resize cache every second. Best this interval should be configurable in external config.
file with other cache settings (like memory sizes).

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