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From Daniel <dferra...@gmail.com>
Subject Re: [users@httpd] Re: mpm-event, ServerLimit and ThreadsPerChild on multicore systems
Date Fri, 20 Nov 2015 16:00:12 GMT
you have enough processes already, too many if you ask me (spawning
processes is more costly than threads), increase the number of threads per
child to do the math.

2015-11-20 16:53 GMT+01:00 Abby Normal <brutalgeisha@gmail.com>:

> No one for this simple question? :)
>
> Regards,
> Abby
>
>
> >On 18.11.2015 21:45, Abby Normal wrote:
>
>> Hello people,
>>
>> I hope someone can help me with this simple question. I searched the net
>> but could not find a proper answer.
>>
>> Default event configuration is this:
>>
>> MaxRequestWorkers 400 =ThreadsPerChild x ServerLimit
>> ServerLimit 16
>> ThreadsPerChild 25
>> ThreadLimit 64
>>
>>
>> So ie. I have a dedicated server with single cpu with 4 cores with
>> hyperthreading and 32GB of ram. What is the best way to raise
>> MaxRequestWorkers to 800? Should I go with raising ServerLimit to 32 so
>> I can have 800 MaxRequestWorkers or should I rather raise
>> ThreadsPerChild to 50?
>>
>> I ask this simple question because I could not find the relation to cpu
>> cores and threads of CPU. If ServerLimit is for child processes than I
>> do not see the point raising it above 8 because I have one cpu with 4
>> cores with hyperthreading... Is this related? If it is related than the
>> final settup would be:
>>
>> ServerLimit 8
>> ThreadsPerChild 100
>> ThreadLimit 101
>> MaxRequestWorkers 800
>>
>> Can someone confirm or give an advice?
>>
>> Thank you!
>>
>
>
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-- 
*Daniel Ferradal*
IT Specialist

email         dferradal at gmail.com
linkedin     es.linkedin.com/in/danielferradal

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