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Posted to issues@trafficserver.apache.org by "Leif Hedstrom (JIRA)" <ji...@apache.org> on 2013/12/06 03:40:35 UTC

[jira] [Assigned] (TS-2395) Healthchecks plugin using 100% of CPU

     [ https://issues.apache.org/jira/browse/TS-2395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leif Hedstrom reassigned TS-2395:
---------------------------------

    Assignee: Leif Hedstrom

> Healthchecks plugin using 100% of CPU
> -------------------------------------
>
>                 Key: TS-2395
>                 URL: https://issues.apache.org/jira/browse/TS-2395
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: Plugins
>            Reporter: David Carlin
>            Assignee: Leif Hedstrom
>             Fix For: 4.2.0
>
>
> I had configured the healthchecks plugin to serve four healthchecks - they come in pretty frequently, it can be hundreds per second.  Use of the plugin would peg every core to 100% in htop.  Response times for the healthchecks were often around 4 seconds.
> The code from master was used to build the plugin.
> perf top output showed the following:
> 87.74%  [kernel]                 [k] _spin_lock



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