Re: mpm-event, ServerLimit and ThreadsPerChild on multicore systems

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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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