shishir randive wrote:
Hi ,
I am using a planet-lab kernel2.6.8-1.521.2.4,
having ckrm enabled in it ,which has a slightly
different version of the CPU scheduler than what's
currently available. I had some problem while testing
it for the cpu shares.
I create a class C1 and change its share using
following commands
mkdir /rcfs/taskclass/c1
echo "res=cpu,limit=20,max_limit=20" >
/rcfs/taskcalass/c1/shares
then I write a c program , which has a
infinite loop , and which consumes 99.5 % of resource
CPU. I reclassify that program having pid 2720 to
class c1 using following command
echo "2720" > /rcfs/taskclass/c1/target
then I check the system status using command
top .
though I reclassify the task to class c1
having max_cpu_limit 20 , the program uses 99.5 % of
the CPU.
Why this program is not utilizing the 20 %
CPU resource.
Could you try by setting
"res=cpu, guarantee=20" > /rcfs/taskcalass/c1/shares ?
Also, what does /rcfs/taskclass/config show ?
-- Shailabh
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