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From "Xiao-Feng Li (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-5964) a garbage collection for CMP
Date Wed, 24 Sep 2008 10:03:44 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao-Feng Li reassigned HARMONY-5964:
-------------------------------------

    Assignee: Xiao-Feng Li

> a garbage collection for CMP
> ----------------------------
>
>                 Key: HARMONY-5964
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5964
>             Project: Harmony
>          Issue Type: Improvement
>          Components: VM
>    Affects Versions: 5.0M4
>         Environment: Linux 32 bits
>            Reporter: YangBin
>            Assignee: Xiao-Feng Li
>             Fix For: 5.0M4
>
>         Attachments: compile_config.tgz, gc_stw_cmp_2008-8-30.tgz, test_report.tgz
>
>
> I have designed a "STW" garbage collection for CMP. Its total pause time is 24.9% to
62.1% shorter than that of the garbage collection in Harmony M2 on Intel dual-core platform.
 Its performance is improved 20% in average. The detail experimental result is in the attachment.
(My development environment is 5.0M2). 
> In the attachment there are the souce code, compile configure file and test report.
> The following are the two parameters In my garbage collection.
> -XX:gc.corenum=core number        default value is 2       i.e    -XX:gc.corenum=2
> -XX:gc.blocksize=block size             default value is 64     i.e    -XX:gc.blocksize=64
>  I am very glad to get some comments from everyone. 
> Thank you.

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