Before cache system CPU looks like this:

After enable some kind of cache system (I use two of them for my sites: WP-Cache or if this doesn’t work i use WP-Super-Cache)

It’s frustrating, because caching is a completely solved problem in other programming communities. For example, the .NET framework has had page output caching and page fragment output caching baked into ASP.NET for years.
What I just don’t understand is why, after all these years, and all these documented problems, WordPress hasn’t folded WP-Cache into the core. If you’re ever planning to have traffic of any size on a WordPress blog, consider yourselves warned.
Read more Behold WordPress, Destroyer of CPUs
I also don’t know why they don’t use this cache system for default install of Wordpress ?
..maybe i will find some answers when i read all comments on this thread.
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I am using Wp-Super-Cache succesfully, even if sometimes it’s not enough. Do you know any software to test the php performances? I suppose some plugin is not working correctly…
Bye,
Emanuele
Yes, thx to Mittineague and comment that he post on SilentBits we all know that there is easy way to diagnose this.
See the first comment to this post:
http://silentbits.com/wordpres.....-fix-that/
I hope this will help you.
Thanks for the answer. I am going to check it.
Anyway it’s really strange that Wordpress coders doesn’t integrate a good caching system into their CMS.
Bye,
Emanuele