i host 3 sites all on a shared server with bluehost. All the 3 sites combined gets 20k unique visitors monthly and growing. Of course mysites does not involve any video or downloads. All simple sites using light weight php and mysql i am worried because in my cpanel the server load shows 22/4 cpu's. should i panic? do i need to move to vps or dedicated plan? Any inputs could be more than helpful
So that's around 200 hits per day and per site?, i think that you should go fine with a good shared hosting, i haven't tried bluehost so i can't opine, maybe you need a better host.
That is a silly load averge. 22 out of 4 CPU = 5 odd I would get a VPS - i bought one for my low end traffic sites. So far, so good.
Is performance suffering? The load average tries to measure the number of active processes at any time -- a rudimentary measure of CPU utilization, but if performance is fine, don't worry about it.