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https://issues.apache.org/jira/browse/JCS-148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Vandahl resolved JCS-148.
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Resolution: Fixed
Fix Version/s: jcs-2.0-beta-2
Assignee: Thomas Vandahl
Fixed in SVN.
> Unnecessary use of FileChannel.force() in Indexed and Block Disk Caches
> -----------------------------------------------------------------------
>
> Key: JCS-148
> URL: https://issues.apache.org/jira/browse/JCS-148
> Project: Commons JCS
> Issue Type: Improvement
> Components: Indexed Disk Cache
> Affects Versions: jcs-2.0-beta-1
> Reporter: Wiktor N
> Assignee: Thomas Vandahl
> Fix For: jcs-2.0-beta-2
>
>
> In: IndexedDisk.write() and BlokDisk.write() at the end FileChannel.force()
> is called.
> It introduces a lot of I/O and affects performance.
> After removal of these two lines, mvn test raises no issues.
> The test case
> org.apache.commons.jcs.auxiliary.disk.indexed.HugeQuantityIndDiskCacheLoadTest
> goes from 450 seconds needed for completion to 30 seconds on my system.
> As the data file is useless without proper keyfile, which is stored only on
> shutdown, then I guess we can resign from fc.force() on data writes.
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