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https://issues.apache.org/jira/browse/TS-86?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Plevyak closed TS-86.
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Resolution: Fixed
Fix Version/s: 2.1.0
Committed revision 898919, dev branch
> HTTP cache miss latency huge
> ----------------------------
>
> Key: TS-86
> URL: https://issues.apache.org/jira/browse/TS-86
> Project: Traffic Server
> Issue Type: Improvement
> Components: Core
> Reporter: John Plevyak
> Assignee: John Plevyak
> Fix For: 2.1.0
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> Single client back to back cache misses have an average latency of 50+ msecs.
> Cache hits (in ramcache) are substantially sub msec.
> The problem seems to be with scheduling of events. My feeling is that this
> would be best addressed by reexamining the event/net subsystems
> and possibly accelerating a move to libev which portabiliy supports waking
> threads waiting on I/O for cross-thread events.
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