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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2014/02/04 11:08:09 UTC
[jira] [Updated] (OAK-1383) Reduce memory usage of the cache
[ https://issues.apache.org/jira/browse/OAK-1383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thomas Mueller updated OAK-1383:
--------------------------------
Fix Version/s: 0.16
> Reduce memory usage of the cache
> --------------------------------
>
> Key: OAK-1383
> URL: https://issues.apache.org/jira/browse/OAK-1383
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Fix For: 0.16
>
>
> The LIRS cache calculates the estimated number of cells using the cache size and the average entry size, and allocates empty arrays accordingly.
> Currently, the LIRS cache uses a default entry size of 100 bytes, which is relatively low. Because of that, even an empty cache needs quite a lot of memory.
> I found the average size of the entries is around 2000 for our unit tests. Using this average size should reduce memory usage a lot.
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