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https://issues.apache.org/jira/browse/TS-3178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14206919#comment-14206919
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ASF subversion and git services commented on TS-3178:
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Commit ca56b3a93baa1e09a08870b6c12185b25278d0f0 in trafficserver's branch
refs/heads/master from [~briang]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=ca56b3a ]
TS-3178: Setting default values in records.config
> ProxyAllocator improvements
> ---------------------------
>
> Key: TS-3178
> URL: https://issues.apache.org/jira/browse/TS-3178
> Project: Traffic Server
> Issue Type: Improvement
> Components: Core
> Reporter: Brian Geffon
> Assignee: Cynthia Gu
> Fix For: 5.2.0
>
> Attachments: patch.diff, patch.diff
>
>
> Currently when a ProxyAllocator (Thread Local) has more than a
> configurable number of elements it will return them one-by-one to a
> ClassAllocator (Global Freelist). Returning every item in this fashion is
> inefficient as we'll likely need more items in the future. Therefore we
> should maintain a low watermark (a minimum number) of items that should be in
> a ProxyAllocator at any one time. When the number of elements reaches high
> watermark, the free up is triggers to keep it below the low
> watermark. Additionally, the free should be a block free instead of
> one-by-one as we can reduce several hundred compare-and-swap operations to a
> single CAS
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