topic Re: Dual Xeons on DL360 with Linux RedHat 7.3 in Operating System - Linux

Dual Xeons on DL360 with Linux RedHat 7.3

Trevor Jennings — Thu, 05 Feb 2004 10:29:25 GMT

Hello,

On our new DL360 server I noticed after installing RedHat 7.3 that the OS is reporting 4 cpus rather than 2. Anyone know why this may be the case and whether there would be anything to be concerned about?

Re: Dual Xeons on DL360 with Linux RedHat 7.3

Mark Grant — Thu, 05 Feb 2004 10:33:24 GMT

Are they prossibly dual core processors?. A dual core processor could well look like two processors to the OS.

Re: Dual Xeons on DL360 with Linux RedHat 7.3

G. Vrijhoeven — Thu, 05 Feb 2004 10:42:52 GMT

Hi.

Mark is right it looks like you have 4 CPU's whan you in fact have two: check the dmesg command.

HTH,

Gideon

Re: Dual Xeons on DL360 with Linux RedHat 7.3

Olivier Drouin — Thu, 05 Feb 2004 10:44:59 GMT

hyperthreading

Re: Dual Xeons on DL360 with Linux RedHat 7.3

Trevor Jennings — Thu, 05 Feb 2004 10:48:49 GMT

Thats a very good question. The cpu's are 3.06Ghz Xeons with the 1Mb L3cache.

Re: Dual Xeons on DL360 with Linux RedHat 7.3

Mark Grant — Thu, 05 Feb 2004 10:56:55 GMT

These processors are dual core which seems to fit in with what we see here

Re: Dual Xeons on DL360 with Linux RedHat 7.3

Trevor Jennings — Thu, 05 Feb 2004 10:59:24 GMT

Okay thanks for the replies. That does make sense with the hyper threading.

Re: Dual Xeons on DL360 with Linux RedHat 7.3

Steven E. Protter — Thu, 05 Feb 2004 11:08:53 GMT

There are other reported cases of this happening in back Linux threads.

Are you using the smp kernel?

SEP

Re: Dual Xeons on DL360 with Linux RedHat 7.3

Trevor Jennings — Thu, 05 Feb 2004 11:10:27 GMT

Yes, I am using the default 2.4.18-3smp kernel that comes with redhat 7.3.