Well I came across that disabling wordpress plugins will result in a less cpu usage..
so after turning off all of them.. the cpu graph was normal..
as soon as i edited 2-3 pages.. it went up like a rocket.. (SEE IMAGES)

can anybody help.. and is wordpress the culprit or there is something else..
x10 support cannot tell the detailed info about cpu usage so i cant identify..
Resource Limit Hit (Wordpress)-executions.png Resource Limit Hit (Wordpress)-realtime.png