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Date: Mon, 21 Mar 2011 08:52:05 +0000 (UTC)
From: "Doron Cohen (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Updated] (LUCENE-2978) Upgrade benchmark from
 commons-compress-1.0 to commons-compress-1.1 for 15 times faster gzip
 decompression
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     [ https://issues.apache.org/jira/browse/LUCENE-2978?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Doron Cohen updated LUCENE-2978:
--------------------------------

    Description: 
In LUCENE-1540 TrecContentSource moved from Java's GZipInputStream to common-compress 1.0. 
This slowed down gzip decompression by a factor of 15. 
Upgrading to 1.1 solves this problem.
I verified that the problem is only in GZIP, not in BZIP.
On the way, as 1.1 introduced constants for the compression methods, the code can be made a bit nicer.

  was:
In LUCENE-1540 TrecContentSource moved from Java's GZipInputStream to common-compress 1.1. 
This slowed down gzip decompression by a factor of 15. 
Upgrading to 1.0 solves this problem.
I verified that the problem is only in GZIP, not in BZIP.
On the way, as 1.1 introduced constants for the compression methods, the code can be made a bit nicer.


> Upgrade benchmark from commons-compress-1.0 to commons-compress-1.1 for 15 times faster gzip decompression
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-2978
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2978
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: contrib/benchmark
>            Reporter: Doron Cohen
>            Assignee: Doron Cohen
>             Fix For: 3.2, 4.0
>
>
> In LUCENE-1540 TrecContentSource moved from Java's GZipInputStream to common-compress 1.0. 
> This slowed down gzip decompression by a factor of 15. 
> Upgrading to 1.1 solves this problem.
> I verified that the problem is only in GZIP, not in BZIP.
> On the way, as 1.1 introduced constants for the compression methods, the code can be made a bit nicer.

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