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From "Andrew Cornwall (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-5575) [classlib][pack200] Pack200 is slow adding to classpool
Date Wed, 05 Mar 2008 17:17:42 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Andrew Cornwall updated HARMONY-5575:

    Summary: [classlib][pack200] Pack200 is slow adding to classpool  (was: [classlib][pack200])

> [classlib][pack200] Pack200 is slow adding to classpool
> -------------------------------------------------------
>                 Key: HARMONY-5575
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5575
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>         Environment: All pack200
>            Reporter: Andrew Cornwall
>         Attachments: main.patch
> There are performance issues with Pack200. The real problem is probably the fact that
I'm creating lots of garbage in the comparators, but some of that can be alleviated by deferring
the sort until after all the ClassFileEntries are known.
> This patch defers the sort.  It reduces the runtime of the JUnit tests from 12.812 seconds
to 7.359 seconds, which is not insignificant.
> (Unfortunately, this patch also appears to have changed existing tabs to spaces, so it's
larger than it should be.)

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