Very Computer

Hello

Please personally CC my email address to any responses:

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

-------------------------------------------

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in

More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Run top, then press 1 to get a 'per cpu' usage line, rather than the
default combined thing.

Obviously you'll need a threaded app to take advantage of the
processors, and preferably a 2.5 kernel with  Ingo's HT scheduler patch...

Andrew

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in

More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/