check ur /proc/cpuinfo and in flags section look for "ht" and in /proc/cpuinfo if u r seeing 4 cpus that means u have hyper threading enabled. Now if u want to see only 2 processors go to bios and diable hyperthreading. Hope this helps --- "Liaw, Andy" <andy_liaw@merck.com> wrote: > Dear List, > > I've just installed Mandrake 9.0 on a Compaq > ProLiant ML550 box (dual P4 > Xeon 2.4 GHz chips, 8GB ram). I had to re-compile > the kernel to get all 8GB > of RAM recognized by the kernel (the "enterprise" > kernel only saw 3.7 GB, > despite passing kernel parameter at boot). The > strange thing is that the > kernel is seeing four CPUs, rather than two! When I > run a long computation, > "top" would show <1% CPU usage on all four, even > though one job is shown to > take 99% CPU. > > Can anyone please tell me how to get the kernel to > recognize the two CPUs > correctly? TIA! > > (Please cc andy_liaw@merck.com, as I'm not currenly > subscribed to the list.) > > Regards, > Andy > > Andy I. Liaw, PhD > Biometrics Research Phone: (732) 594-0820 > Merck & Co., Inc. Fax: (732) 594-1565 > P.O. Box 2000, RY84-16 Rahway, NJ 07065 > mailto:andy_liaw@merck.com > > > > ------------------------------------------------------------------------------ > Notice: This e-mail message, together with any > attachments, contains information of Merck & Co., > Inc. (Whitehouse Station, New Jersey, USA) that may > be confidential, proprietary copyrighted and/or > legally privileged, and is intended solely for the > use of the individual or entity named on this > message. If you are not the intended recipient, and > have received this message in error, please > immediately return this by e-mail and then delete > it. > > ============================================================================== > > -- > Kernelnewbies: Help each other learn about the Linux > kernel. > Archive: > http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
