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From "Aleksey Shipilev (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-5847) [classlib][luni][performance] ObjectInputStream/ObjectOutputStream cleanup
Date Wed, 28 May 2008 15:35:46 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aleksey Shipilev updated HARMONY-5847:
--------------------------------------

    Attachment: cl-O_IO-cleanup-rc1.patch

cl-O_IO-cleanup-rc1.patch:
Various improvements:
 - cleaning up forced boxing/unboxing of ints
 - merging reference update in updateReference()
 - storing isSerializable, isExternalizable, isEnum, isProxy properties in OSC (eliminating
native calls for DRLVM, contention, etc)
 - propagating class descriptors throughout the OIS/OOS (saving the OSC.lookup()'s)
 - eliminating writeClassDescForClass (lookup + writeClassDesc)
 - eliminating redundant wrappers for OSC.lookupStreamClass()

LUNI tests are OK.

This patch gives significant boosts on SPECjvm2008:serial: +20% (8-core CTN), +35% (8-core
HTN), +200% (16-core TGN).




> [classlib][luni][performance] ObjectInputStream/ObjectOutputStream cleanup
> --------------------------------------------------------------------------
>
>                 Key: HARMONY-5847
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5847
>             Project: Harmony
>          Issue Type: Sub-task
>          Components: Classlib
>            Reporter: Aleksey Shipilev
>         Attachments: cl-O_IO-cleanup-rc1.patch
>
>
> This issue is dedicated for ObjectOutputStream/ObjectInputStream cleanup and optimization.

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