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Posted to commits@harmony.apache.org by "Rustem Rafikov (JIRA)" <ji...@apache.org> on 2007/10/09 17:41:50 UTC
[jira] Updated: (HARMONY-4914) [drlvm] increasing default sizes
for code and vtable pools give a little boost
[ https://issues.apache.org/jira/browse/HARMONY-4914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rustem Rafikov updated HARMONY-4914:
------------------------------------
Attachment: code-size.patch
> [drlvm] increasing default sizes for code and vtable pools give a little boost
> -------------------------------------------------------------------------------
>
> Key: HARMONY-4914
> URL: https://issues.apache.org/jira/browse/HARMONY-4914
> Project: Harmony
> Issue Type: Improvement
> Components: DRLVM
> Environment: windows, linux
> Reporter: Rustem Rafikov
> Priority: Minor
> Attachments: code-size.patch
>
>
> I suggest to increase the default sizes for vtable and code pools (see vm/vmcore/include/mem_alloc.h).
> It reduces fragmentation of data and thus gives a little boost on specjbb2005 (as example).
> For example, the default code pool size for bootstrap classloader is 256K. Final size is about 2Mb, so it is reallocated ~6-7 times. The numbers for default classloader are: 64K - default, ~800K - final, it is realocated 11-12 times.
> The patch is attached.
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