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High Panel CPU usage

SauliusZ

Basic Pleskian
I`m using Plesk 11 on CentOS 6 64bit. Recently I got hight Panel CPU usage (~50% average) and overall CPU usage to 99%.

Tried to restart plesk, apache, even the server. Doesn`t help.
Using command ps -eo pcpu,pid,user,args | sort -k 1 -r | head -10
I see, that about 45% CPU takes "/usr/bin/sw-engine-cgi -c /usr/local/psa/admin/conf/php.ini -d auto_prepend_file=auth.php3 -u psaadm"
some websites php "/usr/bin/php-cgi -c /var/www/vhosts/website.com/etc/php.ini" jumps to 6% or more cpu usage,
about 15% takes mysql, and ~1.3% nobody user with "./ctasd.bin -l / -c /etc/ctasd/ctasd-out.conf --pid /var/wun/ctasd/ctasd.pid" command.

Can someone tell why sw-engine-cgi takes so much CPU power and how to solve that?
 
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