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Weaselweb
n00b
Joined: 17 Oct 2004
Posts: 74
Location: Chemnitz, Germany
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 Posted: Tue Nov 14, 2006 9:20 pm Post subject: powernow conservative governor freezes my X2 system (SOLVED) |
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Hi,
to save energy I want use the conservative governor in powernow. To switch it on both cores i use the following script:
| Code: | | for cpu in $(ls /sys/devices/system/cpu); do echo conservative > /sys/devices/system/cpu/$cpu/cpufreq/scaling_governor; done |
Whichs works well at the beginning. After some moments, the cpu freq scales down to 1GHz on both cores. Unitl now, no problem. But after some work, when the cpu freq scales up again, my system freezes and i have to reset my box.
If I use the script above with "performance" and "powersave" to switch between 1GHz and 2,2Ghz all works quite well.
Anybody with an idea why my system freezes with conservative governor?
Greetings
Weaselweb
BTW: Is it a good idea to set different governors/frequencies for each cores?
Last edited by Weaselweb on Tue Nov 28, 2006 1:50 pm; edited 1 time in total |
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Mad Merlin
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Joined: 09 May 2005
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Weaselweb
n00b
Joined: 17 Oct 2004
Posts: 74
Location: Chemnitz, Germany
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| Posted: Fri Nov 17, 2006 12:06 pm Post subject: |
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You're right, setting a new governor for one core sets also the governor for the other one.
I tried to set the frequency manually (using userspace governor) on all steps: no problem
I tried conservative governor again: freeze after some seconds |
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Weaselweb
n00b
Joined: 17 Oct 2004
Posts: 74
Location: Chemnitz, Germany
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| Posted: Tue Nov 28, 2006 1:50 pm Post subject: |
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| Well, after installing sys-kernel/gentoo-sources-2.6.18-r3 the conservative governor works great. No freezes anymore. |
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