Thx for the replay, I have found this doc it's interseting (they talk abour Xeon i Have Xeon on the server :) ) http://www-106.ibm.com/developerworks/linux/library/l-htl/ -----Message d'origine----- De : Benjamin J. Weiss [mailto:benjamin@xxxxxxxxxx] Envoyé : mercredi 22 octobre 2003 14:45 À : redhat-list@xxxxxxxxxx Objet : Re: 4/8 CPUs not seen in /proc/cpuinfo ! From: "Mohamed Kerbachi" <Mohamed.Kerbachi@xxxxxxxxxxxxx> To: "RedHat mailling list (E-mail)" <redhat-list@xxxxxxxxxx> Sent: Wednesday, October 22, 2003 8:16 AM Subject: 4/8 CPUs not seen in /proc/cpuinfo ! > I have access to a server only with ssh so i can't open the box, i see a strange think: > In /var/log/messages > > > Oct 2 1:18:52 ser cpu: 0, clocks: 998004, slice: 110889 > Oct 2 1:18:52 ser kernel: CPU0<T0:998000,T1:887104,D:7,S:110889,C:998004> > Oct 2 1:18:52 ser kernel: cpu: 6, clocks: 998004, slice: 110889 > Oct 2 1:18:52 ser kernel: cpu: 3, clocks: 998004, slice: 110889 > Oct 2 1:18:52 ser kernel: cpu: 4, clocks: 998004, slice: 110889 > Oct 2 1:18:52 ser kernel: cpu: 1, clocks: 998004, slice: 110889 > Oct 2 1:18:52 ser kernel: cpu: 2, clocks: 998004, slice: 110889 > Oct 2 1:18:52 ser kernel: cpu: 5, clocks: 998004, slice: 110889 > Oct 2 1:18:52 ser nfslock: rpc.statd startup succeeded > Oct 2 1:18:52 ser kernel: cpu: 7, clocks: 998004, slice: 110889 > > > So there is 8 Intel CPUs. > > But with cat /proc/cpuinfo I see: > > > processor : 0 > vendor_id : GenuineIntel > cpu family : 15 > model : 1 > ... > processor : 2 > vendor_id : GenuineIntel > cpu family : 15 > model : 1 > ....... > .... > .. > > processor : 3 > vendor_id : GenuineIntel > cpu family : 15 > model : 1 > > So only 4 CPU where are the other4 !!!!!! I AM CONFUSED !!!!! > > Thanks for the Help > > > > Haux They're probably hyper-threading cpu. Intel's hyper-threading CPU's show up as two CPU's each, as part of their performance enhancement. Don't ask me why, I'm not a microprocessor engineer. :) Ben -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
