Problem with CFS scheduler [SOLVED]

[Majlo]

Hi All

I would like to try new CFS scheduler so i`ve downloaded new patch sched-cfs-v2.6.22.5-v20.2.patch and also vanilla-sources-2.6.22

Code: Select all

server linux # patch -p1 < sched-cfs-v2.6.22.5-v20.2.patch 
patching file Documentation/kernel-parameters.txt
patching file Documentation/sched-design-CFS.txt
patching file Makefile
patching file arch/i386/kernel/smpboot.c
patching file arch/i386/kernel/tsc.c
patching file arch/ia64/kernel/setup.c
patching file arch/mips/kernel/smp.c
patching file arch/sparc/kernel/smp.c
patching file arch/sparc64/kernel/smp.c
patching file block/cfq-iosched.c
patching file drivers/acpi/processor_idle.c
patching file fs/proc/array.c
patching file fs/proc/base.c
patching file include/asm-generic/bitops/sched.h
patching file include/linux/cpu.h
patching file include/linux/hardirq.h
patching file include/linux/sched.h
patching file include/linux/topology.h
patching file init/main.c
patching file kernel/delayacct.c
patching file kernel/exit.c
patching file kernel/fork.c
patching file kernel/posix-cpu-timers.c
patching file kernel/sched.c
patching file kernel/sched_debug.c
patching file kernel/sched_fair.c
patching file kernel/sched_idletask.c
patching file kernel/sched_rt.c
patching file kernel/sched_stats.h
patching file kernel/softirq.c
patching file kernel/sysctl.c

Looks like patch has been sucessfully applied.But i don`t see any new choise in kernel config and no new scheduler is listed .Or is listed as CFQ ?
Thanks for reply

[Veldrin]

Or is listed as CFQ ?

CFQ (= Completely Fair Scheduler) is an IO scheduler, has nothing to with the cpu-scheduler your want to install.

CFS automatically replaces the mainlines staircase scheduler, so i guess it is normal that there is no option available.

I do have some CFS options available, but from what I understand they are from some addtional patches. (namely sched-cfs-v2.6.22-v19.1-boost.patch and sched-cfs-v2.6.22-v19.1-boost-tunables.patch)

cheers
V.

[phajdan.jr]

Anyway such tuning requires expertise in how it works and kernel development in general. Don't bother.

[Majlo]

Guys thanks for explanation . Solved