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Posted to commits@harmony.apache.org by "Aleksey Shipilev (JIRA)" <ji...@apache.org> on 2008/07/12 16:01:31 UTC
[jira] Updated: (HARMONY-5910) [classlib][pack200][performance]
BHSDCodec.decode() optimization
[ https://issues.apache.org/jira/browse/HARMONY-5910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aleksey Shipilev updated HARMONY-5910:
--------------------------------------
Attachment: pack200-bhsdcodec-v1.patch
pack200-bhsdcodec-v1.patch
- precomputes the powers of radix
- inlines isHigh()
- moves the check for EOF from the cycle
- reorders operands in exit condition and uses partial boolean evaluation
Gives +4% to unpacking scenario (1.2 secs from 35.5 total).
> [classlib][pack200][performance] BHSDCodec.decode() optimization
> ----------------------------------------------------------------
>
> Key: HARMONY-5910
> URL: https://issues.apache.org/jira/browse/HARMONY-5910
> Project: Harmony
> Issue Type: Improvement
> Components: Classlib
> Environment: Latest pack200
> Reporter: Aleksey Shipilev
> Attachments: pack200-bhsdcodec-v1.patch
>
>
> Optimization of o.a.h.pack200.BHSDCodec.decode(...).
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