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Posted to commits@harmony.apache.org by "Mikhail Fursov (JIRA)" <ji...@apache.org> on 2007/12/01 14:01:46 UTC
[jira] Commented: (HARMONY-5171) [drlvm][jitrino][opt] Allocation
prefetch and memset in java helpers
[ https://issues.apache.org/jira/browse/HARMONY-5171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547443 ]
Mikhail Fursov commented on HARMONY-5171:
-----------------------------------------
gc_magics-jit_part.v2.patch was committed with revision 600112
> [drlvm][jitrino][opt] Allocation prefetch and memset in java helpers
> --------------------------------------------------------------------
>
> Key: HARMONY-5171
> URL: https://issues.apache.org/jira/browse/HARMONY-5171
> Project: Harmony
> Issue Type: Improvement
> Components: DRLVM
> Environment: IA-32
> Reporter: Dmitry Pronichkin
> Attachments: gc_magics-jit_part.patch, gc_magics-jit_part.v2.patch, GC_magics.patch
>
>
> GC allocation helper currently goes to native code if memory for allocation is not cleared. This improvement allows to make memory clearing and allocation prefetch in GChelper using two new VMHelpers - prefetch (Address addr, int prefetch_distance, int prefetch_stride) and memset0 (Address addr, int zeroing_size). Three new parameters - prefetch_distance, prefetch_stride and zeroing_size - are taken from native GC.
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