[jira] Commented: (HARMONY-5231) [drlvm][gc_gen] Implementing allocation prefetch and memset in java GC helpers

["Ilya Berezhniuk (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HARMONY-5231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547159 ] 

Ilya Berezhniuk commented on HARMONY-5231:
------------------------------------------

Rustem, FYI:

As a temporary solution for uncompressed references support, 2 GC_GEN instances of is built for now (starting from r599482) with different compile-time defines.
The default mode for x86 is uncompressed, for x86_64 is compressed.

Each GC_GEN instance has its own copy of GCHelper.java: in 'gc_gen/javasrc' and in 'gc_gen/javasrc_uncomp'.
These files are identical, the only difference is the name of native library loaded in static initializer.

Please be sure you are corrected both GCHelper.java

Thanks,
Ilya.

> [drlvm][gc_gen] Implementing allocation prefetch and memset in java GC helpers
> ------------------------------------------------------------------------------
>
>                 Key: HARMONY-5231
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5231
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>         Environment: 32-bit
>            Reporter: Rustem Rafikov
>         Attachments: gc_magics-gc_part.patch
>
>
> Hi, 
> The attached patch adds allocation prefetch and memset support to GC java helpers.
> The patch introduces alloc_zeroing method to GCHelper to put the first version into SVN. 
> It does not change existing helper while the new one is implemented in optimal way. 
> Only after this old version will be switched. 
> --
> Thanks,
> Rustem

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