high load crash server

ello!

since 2 months I have problems with the server

i install cloduflare to reduce the load, and it works greate beacause the load go from 5 to 1

but wordpress mu still have pics of load that make crash the server

So. I decided move the biggest site (androidzone.org 40000 user per day) to a new hosting: VPS from liquidweb (2Gb 1 CPU)

then i delete all plugins, and all themes, except Platinum SEO Pack and Savrix Android Market

The load is normal (0.6) but still have pics, one or to times at day that crash apache or server

now i’ve deactivate wp cron by adding define(‘DISABLE_WP_CRON’, true);

things seem normal in the course of 1 hour

but what is the problem that is causing this? how to find it?

this is the logs in one pic of high load

11678 (Trace) (Kill) 	kandom 	4 	

 23.0 	

 0.8 	/usr/bin/php /home/kandom/public_html/index.php
11698 (Trace) (Kill) 	kandom 	4 	

 17.0 	0.4 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11696 (Trace) (Kill) 	kandom 	4 	

 17.0 	0.0 	[php] <defunct>
11713 (Trace) (Kill) 	kandom 	4 	

 17.0 	0.0 	[php]
11699 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.4 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11708 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.4 	/usr/bin/php /home/kandom/public_html/index.php
11711 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.4 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11714 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.3 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11679 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.0 	[php] <defunct>
11684 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.0 	[php] <defunct>
11710 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.0 	[php] <defunct>
11715 (Trace) (Kill) 	kandom 	4 	

 16.0 	0.0 	[php] <defunct>
11709 (Trace) (Kill) 	kandom 	4 	

 15.0 	0.4 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11706 (Trace) (Kill) 	kandom 	4 	

 15.0 	0.3 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11707 (Trace) (Kill) 	kandom 	4 	

 15.0 	0.3 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11717 (Trace) (Kill) 	kandom 	4 	

 15.0 	0.3 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11720 (Trace) (Kill) 	kandom 	4 	

 13.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11719 (Trace) (Kill) 	kandom 	4 	

 12.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11722 (Trace) (Kill) 	kandom 	4 	

 12.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11721 (Trace) (Kill) 	kandom 	4 	

 11.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11725 (Trace) (Kill) 	kandom 	4 	

 9.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11727 (Trace) (Kill) 	kandom 	4 	

 8.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11732 (Trace) (Kill) 	kandom 	4 	

 8.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11733 (Trace) (Kill) 	kandom 	4 	

 6.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-includes/ms-files.php
11735 (Trace) (Kill) 	kandom 	4 	

 6.0 	0.2 	/usr/bin/php /home/kandom/public_html/wp-cron.php
11457 (Trace) (Kill) 	kandom 	4 	

 2.2 	0.0 	[php] <defunct>
11481 (Trace) (Kill) 	kandom 	4 	

 2.1 	0.0 	[php] <defunct>
11362 (Trace) (Kill) 	kandom 	4 	

 1.3 	0.0 	[php] <defunct>