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Posted to users@httpd.apache.org by Randy Paries <ra...@unitnet.com> on 2004/10/04 16:15:09 UTC
[users@httpd] A couple of tuning questions
Hello,
I have a rh9 box with apache 2 and tomcat 5
The apache server gets about 1.2M hits a day
on average i have about 110 httpd running when i do a ps -ef | grep httpd |
wc -l, but on Monday mornings my busiest I have around 225 httpd running
I am trying to determine what are the best setting for my prefork MPM
settings.
I am getting conflicting suggestions on MaxClients on the RH pages it says::
"However, it is not recommended that the value for MaxClients exceeds 256
when using the prefork MPM. "
BUT on other pages is says that on busy sites i should have MaxClients 512
and ServerLimit set to 1024 Not sure if my server is considered busy. I am
tending to think yes.
these are my current settings:
<IfModule prefork.c>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
ServerLimit 400
MaxClients 400
MaxRequestsPerChild 0
</IfModule>
Thanks for any suggestions
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Re: [users@httpd] A couple of tuning questions
Posted by Joshua Slive <js...@gmail.com>.
On Mon, 4 Oct 2004 09:15:09 -0500, Randy Paries
<ra...@unitnet.com> wrote:
> I am getting conflicting suggestions on MaxClients on the RH pages it says::
> "However, it is not recommended that the value for MaxClients exceeds 256
> when using the prefork MPM. "
That's not very good advice.
> BUT on other pages is says that on busy sites i should have MaxClients 512
> and ServerLimit set to 1024 Not sure if my server is considered busy. I am
> tending to think yes.
If apache is the only thing running on the box, then you should set
MaxClients to the highest number that the system can handle in
physical memory. You need to be sure to restrict MaxClients to
prevent apache from ever using so much memory that the system starts
to swap, since your performance will get killed.
If you are running other services on the box, then you obviously need
to set MaxClients to a lower number to allow those other services to
have resources.
Joshua.
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