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https://issues.apache.org/jira/browse/TS-1951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Call updated TS-1951:
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Assignee: Alan M. Carroll
> Disabling accept thread causes high amount of kernel spin-lock
> --------------------------------------------------------------
>
> Key: TS-1951
> URL: https://issues.apache.org/jira/browse/TS-1951
> Project: Traffic Server
> Issue Type: Bug
> Components: Core
> Reporter: Leif Hedstrom
> Assignee: Alan M. Carroll
> Fix For: sometime
>
>
> When testing various options, I noticed a problem where a kernel spin-lock
> would consume a noticeable amount of CPU (like, half of all CPUs). This was
> on a dual-socket 6-core system (so total of 24 logical CPUs, 12 physical and
> 12 HT). It would also peg one SIRQ handled (for /0) at close to 100%.
> I tracked this down to disabling accept threads. I don't know why this is
> happening, but it clearly shows that keeping accept-threads enabled is
> better. The downside is that accept-threads currently experiences higher
> latencies.
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