0003054: cache memory size

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Category

Severity

Reproducibility

Date Submitted

Last Update

0003054

[Resin]

minor

always

11-07-08 09:40

12-15-08 11:50

Reporter

ferg

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

4.0.0

Product Version

Product Build

Summary

0003054: cache memory size

Description

(rep by Daniel Vydra)

we're trying to assess the memory usage of our application which is running in resin professional 3.0.19.

We are using resin cache, which is configured like this:
<cache path="cache" memory-size="10M" disk-size="1G" />

We had assumed this means that the cache would use up a maximum of 10 megabytes of memory, but when we take a heap dump:
jmap -dump:format=b,file=/path/to/dump.hprof <javaProcessPid>
and run it through Eclipse Memory Analyser, it shows that there are approx 170-200 megabytes retained by com.caucho.db.store.BlockManager, all in com.caucho.util.LongKeyLruCache$CacheItem objects (about 2979 objects total).

Is this expected? Is there any way to use the cache without having the memory usage for it expand to this size?

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Issue History
Date Modified	Username	Field	Change
11-07-08 09:40	ferg	New Issue
12-15-08 11:50	ferg	Assigned To	=> ferg
12-15-08 11:50	ferg	Status	new => closed
12-15-08 11:50	ferg	Resolution	open => fixed
12-15-08 11:50	ferg	Fixed in Version	=> 4.0.0

Mantis 1.0.0rc3[^]

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