high "Load Average"
lists at ruby-forum.com
Sat Mar 20 06:08:12 MSK 2010
> I am using nginx + php-fpm (quad-core PC) + MySQL (on another PC) and
> facing an interesting issue:
> after some time nginx is running, system "load average" goes up
> (sometimes up to 30 and even more points) while CPU usage is still less
> then 30% With such a high load system becomes very slow and
> unresponsive. Restarting nginx helps, but only for a little while. Any
> ideas on the matter?
> Posted at Nginx Forum:
php-fpm has a slow log feature. You can configure it in php-fpm.conf,
and check the php-fpm slow log later. In the slow log, php-fpm will tell
us where are the slow parts of php scripts.
If we see mysql_query(), then it means that sql is slow. We should check
the mysql slow log. May be we can use mysql slow analyse tool to figure
out the slow queries.
If we see file_get_contents(), then it means there is something wrong
with the file system, maybe you are reading files from net file systems
Hope this will help you.
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