Hi.
I set MaxRequestPerChild = 400 (400 is average quantity of ESTABLISHED
connections), but it was only worse.
On Thu, Nov 06, 2008 at 12:01:00PM +0530, Arnab Ganguly wrote:
> Hi,
> Can you try with Non-zero MaxRequestPerChild value.Keep a value which is
> equal to number of request are particular process you want to handle.Once it
> is done the process will be killed and a new process is going to be
> started.I guess your CPU usage should come down.
> Thanks
> -A
>
> On Thu, Nov 6, 2008 at 2:49 AM, Alexey Vlasov <renton@xxxxxxxxxxx> wrote:
>
> > Hi.
> >
> > Working with Apache I noticed one strange thing such as high consumption
> > of CPU.
> >
> > It looks like this.
> > server status:
> > Parent Server Generation: 2
> > Server uptime: 27 minutes 54 seconds
> > Total accesses: 137589 - Total Traffic: 6.1 GB
> > CPU Usage: u80.91 s52.19 cu0 cs0 - 7.95% CPU load
> > 82.2 requests/sec - 3.7 MB/second - 46.2 kB/request
> > 62 requests currently being processed, 38 idle workers
> >
> > Especially remarkable is that Top gives - 9999%
> > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> > 11978 www 20 0 458m 111m 2000 S 9999 0.7 0:01.66
> > /opt/apache/2.2.9/sbin/httpd -k start
> > 18151 www 20 0 453m 106m 1996 S 4 0.7 0:00.30
> > /opt/apache/2.2.9/sbin/httpd -k start
> > 18911 www 20 0 333m 100m 1984 S 3 0.6 0:00.09
> > /opt/apache/2.2.9/sbin/httpd -k start
> > 18942 www 20 0 421m 101m 1996 S 2 0.6 0:00.07
> > /opt/apache/2.2.9/sbin/httpd -k start
> >
> > Accounting also shows high consumption of CPU.
> >
> > I don't know how it really should be, but I think it's not quite normal.
> > Can it be peculiarity or feature of my configuration? Well I really need
> > some advice from those who use worker/event. Thanks in advance.
> >
> > Configuration of my box:
> > 2 x Quad-core CPUs Intel Xeon E5345 linux-2.6.25, gcc-4.1.2, libc-2.6.1
> >
> > Apache-2.2.9 make options:
> > CFLAGS="-O3 -march=nocona -pipe -fPIC -fomit-frame-pointer -ftracer
> > -mfpmath=sse"
> >
> > mpm config:
> > <IfModule mpm_event_module>
> > ServerLimit 48
> > StartServers 4
> > MaxClients 1200
> > MinSpareThreads 25
> > MaxSpareThreads 75
> > ThreadsPerChild 25
> > MaxRequestsPerChild 0
> > </IfModule>
> >
> > Example of my virtualhost:
> > <VirtualHost *>
> > <IfModule fcgid_module>
> > FCGIWrapper /path_to_phpwrapper
> > </IfModule>
> > CustomLog path_to_log combined
> > ErrorLog path_to_log
> > DocumentRoot /path_to_docroot
> > SetEnv PHPRC /path_to_php.ini
> > <IfModule php5_module>
> > php_admin_value *** ***
> > </IfModule>
> > ServerName example.com
> > ServerAlias www.example.com
> > ServerAlias www1.example.com
> > AddHandler server-parsed .htm
> > AddHandler server-parsed .html
> > AddHandler server-parsed .shtm
> > AddHandler server-parsed .shtml
> > RewriteEngine On
> > RewriteCond *** ***
> > # some rules for backend
> > RewriteRule *** *** [NC,L,P]
> > SuexecUserGroup user group
> > </VirtualHost>
> >
> > Total number of virtual hosts is about 2000.
> >
> > --
> > BRGDS. Alexey Vlasov.
> >
> > ---------------------------------------------------------------------
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> >
> >
--
BRGDS. Alexey Vlasov.
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