Safari and a strange high cpu load

I have noticed that recently when i start Safari my cpu load starts to get crazy.
CPU load on one core reaches 92%and falls to 10%, then another core gets 90% load and falls to normal. It is happening continuously. My MBPro get extremely hot and loud.
Everything gets back to normal when I quit or force quit Safari.
Any ideas what is going on?
Other browsers like Firefox and Opera act normally.
Safari Version 3.0.4 (5523.10.6), Mac OS X 10.5.1 all updates till today.
EDIT: I've just done Empty Cache in the browser and the problem disappeared.
Message was edited by: Bartosz

Ok, I found out, why I had a high cpu utilization.
It wasn't Safari 5's fault, but I had a big host file for blocking ads.
After removing these ~15000 lines in /etc/hosts everything is fine again

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hi Paul,
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Message Edited by Izmi on 01-17-2009 02:58 AM

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Hi Fred, and a warm welcome to the forums!
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http://www.dslreports.com/forum/remark,5221851
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All Linksys Cable Modems
All Motorola Cable Modems except for the SB5120
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http://discussions.apple.com/thread.jspa?messageID=2985422&#2985422
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Solved!
Go to Solution.

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Quadrifoglio Verde
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AMD Overdrive
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I used HDTune because I could reference to other results. Whats a better program to use?
Windows Experience Index, HDD Score = 5.9.
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Sepher
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