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Posted to notifications@accumulo.apache.org by "Christopher Tubbs (JIRA)" <ji...@apache.org> on 2014/07/08 20:30:05 UTC
[jira] [Reopened] (ACCUMULO-2762) Use better compiler optimizations
by default for native maps
[ https://issues.apache.org/jira/browse/ACCUMULO-2762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christopher Tubbs reopened ACCUMULO-2762:
-----------------------------------------
It was advised to me by a Fedora developer that -fno-strict-aliasing should be left in there, because it could cause problems. I'm reopening this ticket for now, until I (or someone else) can investigate this.
> Use better compiler optimizations by default for native maps
> ------------------------------------------------------------
>
> Key: ACCUMULO-2762
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2762
> Project: Accumulo
> Issue Type: Improvement
> Components: native
> Affects Versions: 1.5.1, 1.6.0
> Reporter: Christopher Tubbs
> Assignee: Christopher Tubbs
> Priority: Minor
> Labels: newbie
> Fix For: 1.5.2, 1.6.1, 1.7.0
>
> Attachments: ACCUMULO-2762.v1.patch
>
>
> [A comment|https://issues.apache.org/jira/browse/ACCUMULO-2749?focusedCommentId=13985780&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13985780] on ACCUMULO-2749 identified improved performance with better compiler optimizations for native maps (-O3 instead of -O2).
> The native shared library is small, and enabling these additional optimizations will not result in a significantly slower build, so I don't see any reason why we should not enable better optimizations by default in the Makefile, if we can identify them.
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