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From "Dmitry Pronichkin (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-5171) [drlvm][jitrino][opt] Allocation prefetch and memset in java helpers
Date Thu, 22 Nov 2007 09:43:43 GMT
[drlvm][jitrino][opt] Allocation prefetch and memset in java helpers
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                 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


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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