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From "Nathan Beyer (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HARMONY-5829) [drlvm][kernel][performance] j.l.Class Serializable/Externalizable caching
Date Sat, 31 May 2008 03:17:45 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nathan Beyer resolved HARMONY-5829.
-----------------------------------

    Resolution: Fixed

replaced the XXX.class instances with constants on r661936; please verify

> [drlvm][kernel][performance] j.l.Class Serializable/Externalizable caching
> --------------------------------------------------------------------------
>
>                 Key: HARMONY-5829
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5829
>             Project: Harmony
>          Issue Type: Sub-task
>          Components: DRLVM
>            Reporter: Aleksey Shipilev
>            Assignee: Nathan Beyer
>             Fix For: 5.0M7
>
>         Attachments: vm-kernel-serializable-externalizable-cache-rc1.patch, vm-kernel-serializable-externalizable-cache-rc2.patch,
vm-kernel-serializable-externalizable-cache-rc3.patch, vm-kernel-serializable-externalizable-cache-V2-rc1.patch
>
>
> Serialization workloads relies on Class.isAssignableFrom(...) when looking up Serializable
and Externalizable properties (that is, implementation of interfaces). For now, DRLVM kernel
classes perform lookups on each invocation. This issue caches the mentioned properties in
Class fields and does not go to native VMClassRegistry for resolution.

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