From: "Matthew A. Miling" <mamiling@mailbox.syr.edu>
To: linux-kernel@vger.kernel.org
Subject: Measuring CPU with Hyperthreading and Linux
Date: Wed, 30 Apr 2003 12:51:28 -0400 [thread overview]
Message-ID: <3EB61ACD@OrangeMail> (raw)
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
-------------------------------------------
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
-------------------------------------------
next reply other threads:[~2003-04-30 16:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-30 16:51 Matthew A. Miling [this message]
2003-04-30 21:41 ` Measuring CPU with Hyperthreading and Linux Andrew Walrond
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