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https://issues.apache.org/jira/browse/SLING-6719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15943521#comment-15943521
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Alexander Klimetschek commented on SLING-6719:
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The request progress tracker log could be dumped into the Server-Timings header
(optional, off by default, as you probably don't want this by default). See
thread https://twitter.com/cpilsworth/status/845760731278553089
If you want more info like MongoDB access times, these can then be added to the
tracker log.
> Add Server-Timing header to enable chrome log server timings
> ------------------------------------------------------------
>
> Key: SLING-6719
> URL: https://issues.apache.org/jira/browse/SLING-6719
> Project: Sling
> Issue Type: New Feature
> Components: Extensions
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Fix For: Log Tracer 1.0.2
>
>
> Chrome supports Server-Timing header [1] [2] to provide views around time
> spent on server side for various sub calls as part of overall
> request-response timing UI.
> We should utlilize that in Sling to log time data for e.g. remote calls made
> to Mongo as part of given request processing.
> [1] https://w3c.github.io/server-timing/
> [2] https://ma.ttias.be/server-timings-chrome-devtools/
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