toralf
Developer
Joined: 01 Feb 2004
Posts: 3943
Location: Hamburg
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 Posted: Tue Mar 17, 2009 9:46 am Post subject: kernel 2.6.26.8 and boinc high CPU usage |
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Hello,
switching from 2.6.27-gentoo-r9 to vanilla-2.6.28.8 the CPU frequency alternates between 600 and 1700 MHz, resulting in a high fan noise even if the system is idle. I neither activated CONFIG_FAIR_GROUP_SCHED nor CONFIG_USER_SCHED : | Code: | n22 ~ # zgrep SCHED /proc/config.gz | grep -v '#'
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
CONFIG_SCHED_HRTICK=y
CONFIG_SCHED_DEBUG=y
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, the boinc clients itself runs with nice level 19 and I set this : | Code: | n22 ~ # cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load
1 |
What I'm missing ?
Update:
Even with CONFIG_FAIR_GROUP_SCHED and CONFIG_USER_SCHED the system is still under higher CPU load than with 2.6.27  |
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Kernel & Hardware
