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100% CPU load : how to investigate?

Posted by Vincent Delporte on 03/13/07 14:28

Hello

Someone I know is running some Web 2.0-type web site that lives on a
shared host, and is experiencing 100% CPU load after a few hours. At
this point, his provider couldn't tell if it's due to a DoS attack, or
a bug in his application.

1. For the DoS thing, I assume looking at the log files should be
enough to tell if it's the problem is due to a suspicious rise in the
number of connections at some point.

2. As for bugs, are there tools available for PHP that can monitor an
application and reveal bugs that could explain this CPU load?

Thank you.

 

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