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Post subject: Different reported cpu speeds
 Posted: Sep 21, 2007 - 05:25 PM
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Joined: Nov 30, 2006
Posts: 231
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I installed 2.6.22.6-slh-smp-8 and noticed the CPU speed was only 1000.000MHz, I went back to the older kernel and as can be seen from info it is 2200.000MHz
Host/Kernel/OS "sid" running Linux 2.6.22.5-slh-smp-1 i686 [ sidux 2007-03.1 - Γαια - kde-full - (200708151444) ]
CPU Info AMD Athlon 64 3500+ 512 KB cache flags( sse sse2 nx lm pni ) clocked at [ 2200.000 MHz ]
Videocard nVidia G70 [GeForce 7300 GT] X.Org 1.4.0 [ 1280x1024 @50hz ]
Network cards nVidia CK804 Ethernet Controller, at port: e800
Processes 88 | Uptime 3:22 | Memory 126.2/1011.5MB | HDD ATA SAMSUNG SP1614N,ATA SAMSUNG SP1614N Size 320GB (37%used) | GLX Renderer GeForce 7300 GT/PCI/SSE2/3DNOW! | GLX Version 2.1.1 NVIDIA 100.14.19 | Client Shell wrapper | Infobash v2.67
Is this just a reporting error or are they the actual speeds with each kernel, does it matter. |
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Titan aka Τιτάν - it's all Greek to me
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Post subject: RE: Different reported cpu speeds
Posted: Sep 21, 2007 - 05:33 PM
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Joined: Feb 24, 2007
Posts: 679
Location: Berlin, Germany
Status: Offline
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Post subject:
Posted: Sep 21, 2007 - 05:35 PM
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Joined: Dec 01, 2006
Posts: 722
Status: Offline
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My infobash shows 1000 MHz - it is a variable speed processor so only runs faster when it needs to. Is this the same with yours?
drb
Code:
infobash -v3
Host/Kernel/OS running Linux 2.6.22.6-slh-smp-8 i686 [ sidux 2007-01 - Χάος (200702210759) ]
CPU Info (1) AMD Athlon 64 X2 Dual Core 5600+ 1024 KB cache flags( sse sse2 nx lm pni svm ) clocked at [ 1000.000 MHz ]
(2) AMD Athlon 64 X2 Dual Core 5600+ 1024 KB cache flags( sse sse2 nx lm pni svm ) clocked at [ 1000.000 MHz ]
Videocard nVidia G70 [GeForce 7600 GS] X.Org 1.3.0 [ 1024x768 @50hz ]
Network cards nVidia MCP55 Ethernet, at port: e000
Processes 120 | Uptime 1:21 | Memory 162.4/2027.5MB | HDD ATA WDC WD5000AAKS-0,ATA WDC WD3200AAKS-0 Size 820GB (13%used) | GLX Renderer GeForce 7600 GS/PCI/SSE2/3DNOW! | GLX Version 2.1.1 NVIDIA 100.14.19 | Client Shell | Infobash v2.67
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sidux Chaos fully dist-upgraded!
kernel 2.6.27-7.slh.2-sidux-686
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Post subject:
Posted: Sep 21, 2007 - 05:44 PM
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Joined: Jan 16, 2007
Posts: 462
Status: Offline
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| Check BIOS settings for "Cool'n'Quiet". If Cool'n'Quiet is enabled, the processor will throttle down whenever there's no load. This is a very useful feature because it reduces fan noise as well as power consumption. |
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Post subject:
Posted: Sep 22, 2007 - 01:10 AM
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Team Member
Joined: Nov 27, 2006
Posts: 1962
Location: underworld
Status: Offline
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| I keep Cool'n'Quiet is enabled in the bios, but with rcconf, I get rid of powersaved |
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Post subject:
Posted: Sep 22, 2007 - 08:38 AM
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Joined: Nov 30, 2006
Posts: 231
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| Cool ,n,quiet is enabled, I knew the CPU speed was variable but I didn't realise the speed infobash reported was variable I thought it was just the max rated speed, live and learn, although both readings were taken with no applications running and within a few minutes of booting so I would have though would be similar. |
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Titan aka Τιτάν - it's all Greek to me
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Post subject:
Posted: Sep 23, 2007 - 12:46 AM
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Joined: Dec 19, 2006
Posts: 1030
Status: Offline
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| CPU speed variation is done with very low latency, infobash spawns alot of commands to gather information. Combine these two properties, and you get a big fat bash script that sometimes triggers the cpu to change frequency when executed, dependning on all other environment variables etc etc. |
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