<SOLVED> System Monitor not showing 4 cpus for Quad Core

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<SOLVED> System Monitor not showing 4 cpus for Quad Core

Postby nwodb on Mon Feb 04, 2013 1:08 am

I'm not sure when I stopped seeing the four processors in System Monitor graph under the resources tab, but it is only showing one now. From what i could find, it looks like my computer is running at a quarter power rather than this being some config that just averages out cpu usage and displays it. -thanks in advance

~$ inxi -Fc 0
System: Host daddy Kernel 3.2.0-4-486 i686 (32 bit) Distro Linux Mint Debian Edition
CPU: Single core Intel Core2 Quad Q6600 (-UP-) cache 4096 KB flags (lm nx sse sse2 sse3 ssse3 vmx) bmips 4787.85 clocked at 1603.00 MHz
Graphics: Card Advanced Micro Devices [AMD] nee ATI RV730XT [Radeon HD 4670] X.Org 1.12.4 Res: 1920x1080@60.0hz
GLX Renderer Gallium 0.4 on AMD RV730 GLX Version 2.1 Mesa 8.0.4 Direct Rendering Yes
Audio: Card-1 Advanced Micro Devices [AMD] nee ATI RV710/730 HDMI Audio [Radeon HD 4000 series] driver snd_hda_intel BusID: 01:00.1
Card-2 Creative Labs SB Live! EMU10k1 driver snd_emu10k1 at port ec00 BusID: 04:02.0
Sound: Advanced Linux Sound Architecture Version 1.0.24
Network: Card Realtek RTL-8169 Gigabit Ethernet driver r8169 v: 2.3LK-NAPI at port e400 BusID: 04:03.0
Disks: HDD Total Size: 1050.2GB (37.8% used) 1: /dev/sda Maxtor_6B300R0 300.1GB 38C
2: /dev/sdb WDC_WD7501AALS 750.2GB 41C
Partition: ID:/ size: 90G used: 9.5G (12%) fs: rootfs ID:/ size: 90G used: 9.5G (12%) fs: ext4
ID:/home size: 688G used: 349G (54%) fs: ext4 ID:swap-1 size: 6.76GB used: 0.00GB (0%) fs: swap
Sensors: System Temperatures: cpu: 40.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes 138 Uptime 48 min Memory 455.5/3041.9MB Runlevel 2 Client Shell inxi 1.4.23

~$ mpstat -P ALL
Linux 3.2.0-4-486 (daddy) 02/03/2013 _i686_ (1 CPU)

11:09:15 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
11:09:15 PM all 8.91 0.00 2.46 3.72 0.00 0.02 0.00 0.00 84.89
11:09:15 PM 0 8.91 0.00 2.46 3.72 0.00 0.02 0.00 0.00 84.89


~$ sudo lshw -class cpu

*-cpu:0
description: CPU
product: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: 6.15.11
serial: 0000-06FB-0000-0000-0000-0000
slot: CPU 1
size: 2403MHz
capacity: 2403MHz
width: 64 bits
clock: 267MHz
capabilities: x86-64 boot fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm tpr_shadow vnmi flexpriority cpufreq
configuration: cores=4 enabledcores=4 id=0 threads=4
*-logicalcpu:0
description: Logical CPU
physical id: 0.1
width: 64 bits
capabilities: logical
*-logicalcpu:1
description: Logical CPU
physical id: 0.2
width: 64 bits
capabilities: logical
*-logicalcpu:2
description: Logical CPU
physical id: 0.3
width: 64 bits
capabilities: logical
*-logicalcpu:3
description: Logical CPU
physical id: 0.4
width: 64 bits
capabilities: logical
*-cpu:1
physical id: 1
bus info: cpu@1
version: 6.15.11
serial: 0000-06FB-0000-0000-0000-0000
size: 2400MHz
capabilities: vmx ht
configuration: id=0
*-logicalcpu:0
description: Logical CPU
physical id: 0.1
capabilities: logical
*-logicalcpu:1
description: Logical CPU
physical id: 0.2
capabilities: logical
*-logicalcpu:2
description: Logical CPU
physical id: 0.3
capabilities: logical
*-logicalcpu:3
description: Logical CPU
physical id: 0.4
capabilities: logical
*-cpu:2
physical id: 2
bus info: cpu@2
version: 6.15.11
serial: 0000-06FB-0000-0000-0000-0000
size: 2400MHz
capabilities: vmx ht
configuration: id=0
*-logicalcpu:0
description: Logical CPU
physical id: 0.1
capabilities: logical
*-logicalcpu:1
description: Logical CPU
physical id: 0.2
capabilities: logical
*-logicalcpu:2
description: Logical CPU
physical id: 0.3
capabilities: logical
*-logicalcpu:3
description: Logical CPU
physical id: 0.4
capabilities: logical
*-cpu:3
physical id: 3
bus info: cpu@3
version: 6.15.11
serial: 0000-06FB-0000-0000-0000-0000
size: 2400MHz
capabilities: vmx ht
configuration: id=0
*-logicalcpu:0
description: Logical CPU
physical id: 0.1
capabilities: logical
*-logicalcpu:1
description: Logical CPU
physical id: 0.2
capabilities: logical
*-logicalcpu:2
description: Logical CPU
physical id: 0.3
capabilities: logical
*-logicalcpu:3
description: Logical CPU
physical id: 0.4
capabilities: logical

~$ ls -al /sys/devices/system/cpu
total 0
drwxr-xr-x 6 root root 0 Feb 3 22:14 .
drwxr-xr-x 4 root root 0 Feb 3 22:14 ..
drwxr-xr-x 6 root root 0 Feb 3 22:14 cpu0
drwxr-xr-x 3 root root 0 Feb 3 23:10 cpufreq
drwxr-xr-x 2 root root 0 Feb 3 23:10 cpuidle
-r--r--r-- 1 root root 4096 Feb 3 23:10 kernel_max
-r--r--r-- 1 root root 4096 Feb 3 23:10 modalias
-r--r--r-- 1 root root 4096 Feb 3 23:10 offline
-r--r--r-- 1 root root 4096 Feb 3 23:10 online
-r--r--r-- 1 root root 4096 Feb 3 23:10 possible
drwxr-xr-x 2 root root 0 Feb 3 23:10 power
-r--r--r-- 1 root root 4096 Feb 3 22:16 present
-rw-r--r-- 1 root root 4096 Feb 3 23:10 uevent
Last edited by nwodb on Mon Feb 04, 2013 1:55 am, edited 1 time in total.
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Re: System Monitor not showing 4 cpus for Quad Core anymore

Postby catweazel on Mon Feb 04, 2013 1:11 am

nwodb wrote:~$ mpstat -P ALL
Linux 3.2.0-4-486 (daddy) 02/03/2013 _i686_ (1 CPU)

The answer is right there in front of you. It's your kernel.
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Re: System Monitor not showing 4 cpus for Quad Core anymore

Postby nwodb on Mon Feb 04, 2013 1:23 am

So, I have a kernel that only supports one cpu? or I need to pass some argument to allow it to see more than one? what do i need to do to fix?
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Re: System Monitor not showing 4 cpus for Quad Core anymore

Postby catweazel on Mon Feb 04, 2013 1:26 am

nwodb wrote:So, I have a kernel that only supports one cpu?

Yes.

what do i need to do to fix?

Install an SMP kernel.

http://packages.debian.org/sid/linux-image-3.2.0-4-486
This kernel is not suitable for SMP (multi-processor, multi-core or hyper-threaded) systems.
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Re: System Monitor not showing 4 cpus for Quad Core anymore

Postby nwodb on Mon Feb 04, 2013 1:53 am

followed this:
http://www.codeleaf.in/2012/05/how-to-i ... linux.html

now I'm seeing all 4, it looks like it has been like this for some time, just never noticed when I changed from Mint 11 to LMDE.

-Thanks for the help!
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Re: System Monitor not showing 4 cpus for Quad Core anymore

Postby catweazel on Mon Feb 04, 2013 2:03 am

nwodb wrote:Thanks for the help!


You're welcome.
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