On ovh.com I took their vps classic 3, all week I tried to optimize the performance of the website, floated response time and the server itself braked, I tried redis, fastcgi cache, APC, memcached. It works fast, then slow, for a minute response time varies from 500ms to 6s. Then I realized that this is not a website, but something with the server. Then they decided to take the test on a dedicated server kimsufi.com there all ok, it became clear that all the problems were from ovh.com. But kimsufi give only 1 hdd, we decided to take the server soyoustart.com (at this moment no complaints), but another problem for kimsufi can not do refunds, wrote them 3 days (sunday, monday and wednesday) and no response at all, and refunds can only be done during the weeks. One more story about ovh.com - my friend took same vps plan and of course same story server periodically slowed but moreover once all hung and could not restart even from the admin panel because there was a bug. Now he gone from them on a dedicated server. Be careful never ever use ovh and kimsufi