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Posted to commits@harmony.apache.org by "Vladimir Strigun (JIRA)" <ji...@apache.org> on 2007/04/24 14:26:15 UTC

[jira] Created: (HARMONY-3744) [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)

[classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)
-----------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-3744
                 URL: https://issues.apache.org/jira/browse/HARMONY-3744
             Project: Harmony
          Issue Type: Improvement
          Components: Classlib
            Reporter: Vladimir Strigun


Frequently used values in getType, toUpperCase and toLowerСase methods were cached. First 1000 values for every method were cached as static arrays. The patch was verified with unit tests and all benchmarks. I have 5-7% speedup for Dacapo.jython benchmark without degradation on other scenarios.

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[jira] Assigned: (HARMONY-3744) [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)

Posted by "Alexey Petrenko (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/HARMONY-3744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Petrenko reassigned HARMONY-3744:
----------------------------------------

    Assignee: Alexey Petrenko

> [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3744
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3744
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Vladimir Strigun
>         Assigned To: Alexey Petrenko
>         Attachments: Harmony-3744.diff
>
>
> Frequently used values in getType, toUpperCase and toLowerСase methods were cached. First 1000 values for every method were cached as static arrays. The patch was verified with unit tests and all benchmarks. I have 5-7% speedup for Dacapo.jython benchmark without degradation on other scenarios.

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[jira] Resolved: (HARMONY-3744) [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)

Posted by "Alexey Petrenko (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/HARMONY-3744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Petrenko resolved HARMONY-3744.
--------------------------------------

    Resolution: Fixed

The patch has been applied.
Please verify.

> [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3744
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3744
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Vladimir Strigun
>         Assigned To: Alexey Petrenko
>         Attachments: Harmony-3744.diff
>
>
> Frequently used values in getType, toUpperCase and toLowerСase methods were cached. First 1000 values for every method were cached as static arrays. The patch was verified with unit tests and all benchmarks. I have 5-7% speedup for Dacapo.jython benchmark without degradation on other scenarios.

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[jira] Updated: (HARMONY-3744) [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)

Posted by "Vladimir Strigun (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/HARMONY-3744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Strigun updated HARMONY-3744:
--------------------------------------

    Attachment: Harmony-3744.diff

the patch

> [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3744
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3744
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Vladimir Strigun
>         Attachments: Harmony-3744.diff
>
>
> Frequently used values in getType, toUpperCase and toLowerСase methods were cached. First 1000 values for every method were cached as static arrays. The patch was verified with unit tests and all benchmarks. I have 5-7% speedup for Dacapo.jython benchmark without degradation on other scenarios.

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[jira] Closed: (HARMONY-3744) [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)

Posted by "Alexey Petrenko (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/HARMONY-3744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Petrenko closed HARMONY-3744.
------------------------------------


> [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3744
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3744
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Vladimir Strigun
>         Assigned To: Alexey Petrenko
>         Attachments: Harmony-3744.diff
>
>
> Frequently used values in getType, toUpperCase and toLowerСase methods were cached. First 1000 values for every method were cached as static arrays. The patch was verified with unit tests and all benchmarks. I have 5-7% speedup for Dacapo.jython benchmark without degradation on other scenarios.

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[jira] Commented: (HARMONY-3744) [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)

Posted by "Vladimir Strigun (JIRA)" <ji...@apache.org>.

    [ https://issues.apache.org/jira/browse/HARMONY-3744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12496207 ] 

Vladimir Strigun commented on HARMONY-3744:
-------------------------------------------

Thanks Alexey,
patch applied as expected

> [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3744
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3744
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Vladimir Strigun
>         Assigned To: Alexey Petrenko
>         Attachments: Harmony-3744.diff
>
>
> Frequently used values in getType, toUpperCase and toLowerСase methods were cached. First 1000 values for every method were cached as static arrays. The patch was verified with unit tests and all benchmarks. I have 5-7% speedup for Dacapo.jython benchmark without degradation on other scenarios.

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[jira] Updated: (HARMONY-3744) [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)

Posted by "Vladimir Strigun (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/HARMONY-3744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Strigun updated HARMONY-3744:
--------------------------------------

    Patch Info: [Patch Available]

> [classlib][luni][performance] performance improvement for java.lang.Character class (toUpperCase, toLowerCase, getType)
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3744
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3744
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Vladimir Strigun
>         Attachments: Harmony-3744.diff
>
>
> Frequently used values in getType, toUpperCase and toLowerСase methods were cached. First 1000 values for every method were cached as static arrays. The patch was verified with unit tests and all benchmarks. I have 5-7% speedup for Dacapo.jython benchmark without degradation on other scenarios.

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