trafficserver-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jason J. W. Williams" <jasonjwwilli...@gmail.com>
Subject Re: ET_NET Consistently at 6-18% CPU Utilization
Date Tue, 28 Oct 2014 00:21:03 GMT
Thanks. Looks like its spending most of its time in these calls:

 30.91%  [kernel]            [k] acpi_pm_read_verified
 16.78%  [kernel]            [k] finish_task_switch
  6.16%  [kernel]            [k] _raw_spin_unlock_irqrestore

On Mon, Oct 27, 2014 at 5:15 PM, Sudheer Vinukonda
<sudheerv@yahoo-inc.com> wrote:
> You may try running "perf top -p ($pidof traffic_server)" to check where the CPU cycles
are being spent.
>
> Thanks,
>
> Sudheer
>
>> On Oct 27, 2014, at 4:24 PM, "Jason J. W. Williams" <jasonjwwilliams@gmail.com>
wrote:
>>
>> Seeing an odd issue on the new Ubuntu 14.04 boxes we're loading with
>> Traffic Server 4.2.1.1. The [ET_NET 0] process runs consistently at
>> 6-18% CPU utilization with no traffic being processed. The exact %
>> depends on the CPU speed (e.g. a 2.1 GHz 8-core box runs at 18%, a
>> 2.93GHz 8-core runs at 6%).
>>
>> For comparison a 2-core 2.0GHz old Opteron box with a moderate load is
>> running 0-5% CPU...but it's running Ubuntu 10.04.
>>
>> Not sure how to track down the cause because the logs are quiet.
>>
>>
>> -J

Mime
View raw message