Messages in this thread | | | Date | Wed, 30 Apr 2003 12:51:28 -0400 | From | "Matthew A. Miling" <> | Subject | Measuring CPU with Hyperthreading and Linux |
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Hello
Please personally CC my email address to any responses: mamiling@syr.edu
I am currently running a dual Pentium 4 Xeon 2.4 GHz system containing Red Hat Linux 6.2 with the 2.4.20 kernel. The Pentium 4 Xeons report 4 cpu's to /proc/cpuinfo because they are hyperthreaded.
My problem lies in trying to measure the CPU usage with such programs as top or gtop. Typically, I see CPU loads in excess of 100% when I run top with some of my signal processing applications, but not more than 200%. Is this value out of 100%, 200%, or 400%? How does this dual, HT system kernel report this info to the OS?
Any help would be appreciated. Thanks
Matt
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Matthew A. Miling Graduate Student - Computer Engineering Syracuse University
phone: (315) 456-1215 cell: (315) 380-9307 e-mail: mamiling@syr.edu matt@miling.com
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