Thomas Mueller created OAK-1383:
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Summary: Reduce memory usage of the cache
Key: OAK-1383
URL: https://issues.apache.org/jira/browse/OAK-1383
Project: Jackrabbit Oak
Issue Type: Bug
Reporter: Thomas Mueller
Assignee: Thomas Mueller
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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