I don't think it's my solution...
Of this there is nothing physically on the server, it is all url_rewriting
Code:
http://www.alternativegirlshardpics.com/search-boobs/
On the server there is this:
Code:
http://www.alternativegirlshardpics.com/search.php?query=boobs
If all that is not file or directory is resubmitted to index.php, pretty much all my site would be sent to index.php
I begin to have also some doubt that the problem is URL rewriter
On the same page, there is also this:
Code:
tail -f error_log|fgrep '[rewrite:'
I tried several times to launch it on the server in the past few weeks, but fails to give a result (think about it for hours and hours and hours and hours and hours)
Today I decided to download the log files locally, the result is 0, not found
On the weekend I also tried to block Bing via IP list downloaded from ip2location

The CPU behavior hasn't changed much, it's not him the problem