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Date: Mon, 10 Dec 2007 05:40:43 -0800 (PST)
From: "Naumova Natalya  (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Updated: (HARMONY-5285) [classlib][startup][performance]
 double reading of resources from jars
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     [ https://issues.apache.org/jira/browse/HARMONY-5285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Naumova Natalya  updated HARMONY-5285:
--------------------------------------

    Summary: [classlib][startup][performance] double reading of resources from jars  (was: double reading of resources from jars)

> [classlib][startup][performance] double reading of resources from jars
> ----------------------------------------------------------------------
>
>                 Key: HARMONY-5285
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5285
>             Project: Harmony
>          Issue Type: Sub-task
>            Reporter: Naumova Natalya 
>
> The problem is in ZipEntry reading: some of JarEntry's are reading twice : resources in jars for instance. Besides reading jar entries is not effective : it's reading via classlib portlib, that uses systems calls always and there is no cashing of entries that were read before.
> If one look to the file usage while jar loading he[she] see that the significant number of reads happen from one offset (ecpesially for jars resources). 

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