Varnish CPU Usage

Andrei lagged at gmail.com
Tue Aug 2 08:58:54 CEST 2016


Are you using the Event MPM by chance? If so, I suggest switching over to
Worker since Event rarely runs into a bug/issue which causes threads to use
inordinate amounts of resources while processing trivial requests.
A bit off-topic, but what's that monitoring software being used from the ss?

On Mon, Aug 1, 2016 at 2:59 AM, Ayberk Kimsesiz <ayberk.kimsesiz at gmail.com>
wrote:

> Hi again,
>
> The problem is still continue. While Varnish is active CPU usage is always
> close to 100%.
>
> Thanks
>
> 2016-07-31 8:54 GMT+03:00 Ayberk Kimsesiz <ayberk.kimsesiz at gmail.com>:
>
>> Can you help? The problem is still continue. While Varnish is active CPU
>> usage is always close to 100%.
>>
>> 2016-07-28 19:57 GMT+03:00 Ayberk Kimsesiz <ayberk.kimsesiz at gmail.com>:
>>
>>> Hi,
>>>
>>> *CPU Monitor: *
>>>
>>> http://i.imgur.com/5KT1xRu.jpg
>>>
>>> *Apache status:*
>>>
>>> SrvPIDAccMCPUSSReqConnChildSlotClientProtocolVHostRequest
>>> *0-0* - 0/0/9766 . 134.59 37 0 0.0 0.00 64.40 ::1 http/1.1
>>> ns1.***com:8080 OPTIONS * HTTP/1.0
>>> *1-0* 14612 0/16/9058 _ 17.83 13 1498 0.0 0.02 53.29 176.***.10 http/1.1
>>> www.***.com:8080 POST /wp-admin/admin-ajax.php HTTP/1.1
>>> *2-0* 10863 0/179/9795 _ 185.14 6 1424 0.0 0.58 60.32 176.***.10
>>> http/1.1 www.***.com:8080 POST /wp-admin/admin-ajax.php HTTP/1.1
>>> *3-0* 13127 0/127/9435 _ 119.80 4 1419 0.0 0.42 56.51 176.***.10
>>> http/1.1 www.***.com:8080 POST /wp-admin/admin-ajax.php HTTP/1.1
>>> *4-0* - 0/0/9187 . 0.00 50 0 0.0 0.00 56.60 ::1 http/1.1
>>> ns1.***.com:8080 OPTIONS * HTTP/1.0
>>> *5-0* 14851 0/9/8761 _ 8.95 13 1559 0.0 0.01 57.90 176.***.10 http/1.1
>>> www.***.com:8080 POST /wp-admin/admin-ajax.php HTTP/1.1
>>> *6-0* 14852 0/6/8130 _ 6.67 4 1482 0.0 0.01 51.88 176.***.10 http/1.1
>>> www.***.com:8080 POST /wp-admin/admin-ajax.php HTTP/1.1
>>> *7-0* 14192 11/57/8355 *K* 72.73 0 1363 106.6 0.44 52.79 176.***.10
>>> http/1.1 www.***.com:8080 POST /wp-admin/admin-ajax.php HTTP/1.1
>>> *8-0* 13067 0/125/7795 _ 121.19 13 1759 0.0 0.65 68.27 176.***.10
>>> http/1.1 www.***.com:8080 POST /wp-admin/admin-ajax.php HTTP/1.1
>>>
>>> Apache error logs don't show anything about CPU.
>>>
>>>
>>> 2016-07-28 19:31 GMT+03:00 Guillaume Quintard <
>>> guillaume at varnish-software.com>:
>>>
>>>> You seem to have a good hit ratio, are you seeing anything on the
>>>> apache logs that would explain the cpu usage?
>>>>
>>>> --
>>>> Guillaume Quintard
>>>>
>>>
>>>
>>
>
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