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https://issues.apache.org/jira/browse/TS-87?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12799983#action_12799983
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Manjesh Nilange commented on TS-87:
-----------------------------------
I should've added this in the patch description: The patch adds 3 new files
(Trie.h, UrlMappingPathIndex.h, UrlMappingPathIndex.cc) and deletes two files
(UmsHelper.h, UmsHelper.cc).
> Performance improvement: Avoid linear search in remap code
> ----------------------------------------------------------
>
> Key: TS-87
> URL: https://issues.apache.org/jira/browse/TS-87
> Project: Traffic Server
> Issue Type: Improvement
> Components: Core
> Reporter: Manjesh Nilange
> Assignee: Manjesh Nilange
> Priority: Minor
> Attachments: trie.patch
>
>
> Currently, the remap code stores all the remap rules in a hash table keyed by
> the host field of the "from URL" of the rule. Entries with the same host
> field are chained in a linked list. When looking for a mapping, the code has
> to do a linear traversal of this list, based on the path of the incoming
> request to find a matching rule. This performance should be improved as
> overhead can be substantial in cases where there are hundreds of the entries
> for the same host.
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