Hi, I am having difficulties getting my distro (Fedora core 4) to see and use all 4 CPU's. As far as i can tell it's only seeing and using 1. I have kernel-2.6.11 installed and it is setup as SMP. if i do "uname" i just get "Linux" i thought i would have got "Linux-smp" or something like. I have looked at the KinfoCentre , and it only shows CPU0, not CPU0 - 3?? I need to know if there is a command i can run to show how many CPU's are detected and in use. Any help appreciated. Thanks in advance. FD
Try this: Code: uname -a This should give you something like: Linux host.domain.tld 2.6.15-3-686-smp #1 SMP Thu Sep 32 04:39:15 UTC 2008 i686 GNU/Linux You can also do a: Code: cat /proc/cpuinfo An other thing that you can do is a Code: top and than press 1 to enable/disable the view of the other CPU's
Thanks - but........... Thanks for the responce Edge. This is the output of the /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 7 model name : Pentium III (Katmai) stepping : 3 cpu MHz : 499.939 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 mtrr pge mca cmov pat pse36 mmx fxsr sse up bogomips : 1001.71 Again only CPU0?? also you were right about the -a on the uname - thanks again. if i do a top - then i only see 1 CPU and if i press 1 the all that i see change is the wording changes to CPU(s) from CPU0. Extract top - 13:56:09 up 3:36, 3 users, load average: 0.34, 0.43, 0.28 Tasks: 91 total, 2 running, 88 sleeping, 0 stopped, 1 zombie Cpu0 : 14.6% us, 2.1% sy, 0.2% ni, 82.9% id, 0.0% wa, 0.1% hi, 0.0% si Mem: 385024k total, 352372k used, 32652k free, 31840k buffers Swap: 1048552k total, 0k used, 1048552k free, 171480k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2192 root 15 0 110m 35m 5232 S 3.3 9.5 3:34.41 X 2853 root 16 0 31440 15m 13m R 2.3 4.2 0:07.79 konsole 4379 root 15 0 2016 1000 788 R 0.7 0.3 0:05.42 top 2391 root 15 0 30876 13m 9752 S 0.3 3.5 0:05.20 kwin 1 root 15 0 1748 568 492 S 0.0 0.1 0:00.96 init 2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 5 root 10 -5 0 0 0 S 0.0 0.0 0:00.09 events/0 6 root 14 -5 0 0 0 S 0.0 0.0 0:00.02 khelper 7 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 kthread 9 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 kblockd/0 12 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 khubd 14 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kseriod 85 root 20 0 0 0 0 S 0.0 0.0 0:00.00 pdflush 86 root 15 0 0 0 0 S 0.0 0.0 0:00.03 pdflush 87 root 25 0 0 0 0 S 0.0 0.0 0:00.00 kswapd0 88 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 aio/0 242 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kpsmoused 277 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_0 314 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_1 354 root 10 -5 0 0 0 S 0.0 0.0 0:00.22 kjournald 811 root 16 -4 1640 544 468 S 0.0 0.1 0:00.20 udevd 854 root 25 0 0 0 0 S 0.0 0.0 0:00.00 phpd_event 990 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kjournald 995 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kjournald 1307 root 15 0 2184 552 260 S 0.0 0.1 0:00.02 dhclient 1412 root 15 0 1620 560 468 S 0.0 0.1 0:00.09 syslogd 1414 root 15 0 1568 388 324 S 0.0 0.1 0:00.01 klogd 1424 rpc 16 0 1700 536 440 S 0.0 0.1 0:00.00 portmap 1442 rpcuser 24 0 1748 708 612 S 0.0 0.2 0:00.01 rpc.statd 1456 root 13 -3 11908 448 348 S 0.0 0.1 0:00.00 auditd 1460 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kauditd WITH 1 PRESSED EXTRACT top - 13:57:01 up 3:37, 3 users, load average: 0.31, 0.42, 0.28 Tasks: 91 total, 2 running, 88 sleeping, 0 stopped, 1 zombie Cpu(s): 3.6% us, 0.3% sy, 0.0% ni, 96.0% id, 0.0% wa, 0.0% hi, 0.0% si Mem: 385024k total, 352148k used, 32876k free, 31848k buffers Swap: 1048552k total, 0k used, 1048552k free, 171472k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2192 root 15 0 110m 35m 5232 S 2.3 9.5 3:39.18 X 2853 root 15 0 31440 15m 13m S 1.0 4.2 0:08.24 konsole 4583 root 15 0 2016 992 784 R 1.0 0.3 0:00.06 top 2393 root 15 0 38988 18m 14m S 0.3 5.0 0:06.08 kdesktop 1 root 15 0 1748 568 492 S 0.0 0.1 0:00.96 init 2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 5 root 10 -5 0 0 0 S 0.0 0.0 0:00.09 events/0 6 root 14 -5 0 0 0 S 0.0 0.0 0:00.02 khelper 7 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 kthread 9 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 kblockd/0 12 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 khubd 14 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kseriod 85 root 20 0 0 0 0 S 0.0 0.0 0:00.00 pdflush 86 root 15 0 0 0 0 S 0.0 0.0 0:00.03 pdflush 87 root 25 0 0 0 0 S 0.0 0.0 0:00.00 kswapd0 88 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 aio/0 242 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kpsmoused 277 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_0 314 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_1 354 root 10 -5 0 0 0 S 0.0 0.0 0:00.22 kjournald 811 root 16 -4 1640 544 468 S 0.0 0.1 0:00.20 udevd 854 root 25 0 0 0 0 S 0.0 0.0 0:00.00 phpd_event 990 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kjournald 995 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kjournald 1307 root 15 0 2184 552 260 S 0.0 0.1 0:00.02 dhclient 1412 root 16 0 1620 560 468 S 0.0 0.1 0:00.09 syslogd 1414 root 15 0 1568 388 324 S 0.0 0.1 0:00.01 klogd 1424 rpc 16 0 1700 536 440 S 0.0 0.1 0:00.00 portmap 1442 rpcuser 24 0 1748 708 612 S 0.0 0.2 0:00.01 rpc.statd 1456 root 13 -3 11908 448 348 S 0.0 0.1 0:00.00 auditd 1460 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kauditd Thanks again - I need some more help?
Linux FireWall.Home.Local 2.6.17-1.2142_FC4smp #1 SMP Tue Jul 11 22:57:02 EDT 2006 i686 i686 i386 GNU/Linux I take it the #1 SMP = 1 CPU ???? Thanks
We have a processor with two cores and had to install a kernel newer than 2.6.12. Your kernel version seems new enough, but maybe quad core support came in a later version? You can search for other available kernels like this: Code: yum search kernel It's also possible that you can enable support for your four cores somewhere in /etc/sysconfig...
Or... Did you disable the "hyper threading" in the BIOS? re: I take it the #1 SMP = 1 CPU ???? No. I have this also, and for me it's showing all 4 CPU's
Still on the go Sorry for the delay guys! the box mainboard went down and i had to source another. I am Running on a quad 500 PIII Compaq Server. On startup all 4 CPU's are shown in post. they are all enabled and i have rebuilt the box so many times with different fedora ditros that i've lost count. any more help appreciated.
Update Thanks Falko, I appreciate your help and time. Just an update........... I have compiled a new kernel for my system and now the outputs are..... 1) uname -r 2.6.18-custom-2.6.18.2 2) uname -a Linux Firewall.home.local 2.6.18-custom-2.6.18.2 #4 SMP Fri Nov 24 11:24:41 GMT 2006 i686 i686 i386 GNU/Linux 3) cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 7 model name : Pentium III (Katmai) stepping : 3 cpu MHz : 499.865 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 mtrr pge mca cmov pat pse36 mmx fxsr sse up bogomips : 1000.85 4) ls -l /etc/sysconfig total 372 -rw-r--r-- 1 root root 4765 Aug 22 14:55 apmd drwxr-xr-x 2 root root 4096 Nov 23 10:05 apm-scripts -rw-r--r-- 1 root root 245 Nov 23 11:02 authconfig -rw-r--r-- 1 root root 1313 Nov 8 04:53 autofs -rw-r--r-- 1 root root 232 Oct 2 23:40 bluetooth drwxr-xr-x 2 root root 4096 Nov 23 09:58 cbq -rw-r--r-- 1 root root 178 Nov 23 18:26 clock drwxr-xr-x 2 root root 4096 Nov 1 22:00 console -rw-r--r-- 1 root root 512 Sep 5 13:14 crond -rw-r--r-- 1 root root 0 Nov 23 11:02 desktop -rw-r--r-- 1 root root 3173 Jul 12 08:50 diskdump -rw-r--r-- 1 root root 31 Oct 2 23:40 dund -rw-r--r-- 1 root root 17 Nov 23 18:26 firstboot -rw-r--r-- 1 root root 30 Nov 23 11:02 grub -rw-r--r-- 1 root root 20 Oct 2 23:40 hidd -rw-r--r-- 1 root root 616 Sep 11 14:44 httpd -rw-r--r-- 1 root root 4891 Nov 24 13:56 hwconf -rw-r--r-- 1 root root 47 Nov 23 11:02 i18n -rw-r--r-- 1 root root 1068 Jul 21 16:33 init -rw------- 1 root root 1753 Jul 14 01:19 ip6tables-config -rwxr-xr-x 1 root root 4570 Nov 23 18:32 iptables -rw-r--r-- 1 root root 1780 Nov 23 11:10 iptables-config -rw-r--r-- 1 root root 58 Aug 1 13:47 irda -rw-r--r-- 1 root root 358 Sep 13 19:07 irqbalance -rw-r--r-- 1 root root 180 Nov 23 19:44 kernel -rw-r--r-- 1 root root 32 Nov 23 11:02 keyboard -rw-r--r-- 1 root root 168 Oct 1 21:25 kudzu -rw-r--r-- 1 root root 134 Jul 13 07:23 lm_sensors drwxr-xr-x 2 root root 4096 Nov 1 22:00 modules -rw-r----- 1 root named 1587 Nov 23 20:00 named -rw-r--r-- 1 root root 1940 Jul 13 21:18 netdump -rw------- 1 root root 668 Nov 23 10:05 netdump_id_dsa -rw-r--r-- 1 root root 616 Nov 23 10:05 netdump_id_dsa.pub -rw-r--r-- 1 root root 64 Nov 23 09:53 network drwxr-xr-x 4 root root 4096 Nov 1 22:00 networking drwxr-xr-x 2 root root 4096 Nov 23 19:22 network-scripts -rw-r--r-- 1 root root 156 Aug 18 14:04 ntpd -rw-r--r-- 1 root root 71 Oct 2 23:40 pand -rw-r--r-- 1 root root 1459 Nov 23 2004 prelink -rw-r--r-- 1 root root 544 Oct 4 22:53 readonly-root -rw-r--r-- 1 root root 111 Sep 2 03:59 samba -rw-r--r-- 1 root root 433 Sep 29 22:14 saslauthd lrwxrwxrwx 1 root root 17 Nov 23 10:02 selinux -> ../selinux/config -rw-r--r-- 1 root root 20 Sep 5 14:27 sendmail -rw-r--r-- 1 root root 57 Aug 18 21:53 smartmontools -rw-r--r-- 1 root root 47 Aug 2 18:44 spamassassin -rw-r--r-- 1 root root 297 Nov 7 16:34 squid -rw-r--r-- 1 root root 610 Sep 13 11:52 syslog -rw-r--r-- 1 root root 93 Nov 23 11:10 system-config-securitylevel -rw-r--r-- 1 root root 304 Oct 14 11:13 system-config-users -rw-r--r-- 1 root root 1750 Aug 23 10:41 tux -rw-r--r-- 1 root root 847 Nov 15 18:00 vncservers -rw-r--r-- 1 root root 152 Oct 27 20:35 wpa_supplicant 5) grep SMP /boot/config-2.6.18-custom-2.6.18.2 CONFIG_SMP=y # CONFIG_X86_BIGSMP is not set CONFIG_SUSPEND_SMP=y CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_X86_SMP=y I believe that when using TOP and pressing the 1 key it should cycle through the CPU's - mine only goes from CPU(s) > CPU0 I hope this is enough to give you an idea of whats wrong Falko
I'm not sure, but maybe you must set Code: CONFIG_X86_BIGSMP=y with Code: make menuconfig when you compile a new kernel.
