On Tue, 15 Feb 2011 09:52:51 +0200
Zvi Dubitzky <DUBI(a)il.ibm.com> wrote:
Hi
I was asking about the fedora 14 kernel if it is good enough for cgroup
usage because
I am trying to set a cgroup under cpu subsytem ( /dev/cgroup/cpu/group1/
) that have /cpu.rt_runtime_us of 100000
while cpu.rt_period_us has a value of 1000000 i.e a ratio of 1/10 . still
when I run a task (endless loop) in that group
(cgexec -g cpu,cpuset:group1 ./test) it gets all the cpu core time that
is assigned to it ( i watch via top utility) , so it seems
that the quota set via the group does not take effect although I restart
the cgconfig service .
I also verified libcgroup is installed by: rpm -q libcgroup
Am I missing something or top is not the right utility to watch the cpu
usage in this case ?
rt_runtime_us and rt_period_us are parameters for handling realtime class
(SCHED_RR, SCHED_FIFO) applications. Does your 'test' run in which priority ?
(see sched_setscheduler())
Thanks,
-Kame
thanks
Zvi Dubitzky
Email:dubi@il.ibm.com
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