[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] sedf testing: volunteers please
Stephan, I enabled the sedf scheduler by applying the patch to Xen testing tree not the unstable tree. Then I did the following test. I started two user domains (named "vm1" and "vm2" respectively). I made the following sedf configurations: xm sedf vm1 0 0 0 0 2 xm sedf vm2 0 0 0 0 8 My intention is to have vm1 reserve 20% of the available cpu and vm2 reserve the rest of 80% (please correct me if my understanding about sedf here is wrong). Then I start "slurp" job in both domains and it will print out the cpu share continuously. To my surprise, vm1 takes around 4% of cpu and vm2 occpuies around 17% cpu. I was expecting they share the cpu something like 20% and 80% though the ratio of 4% and 17% is similar as that of 20% and 80%. BTW, dom0 didn't run any extra job when I ran the test. Could you please let me know why only 21% (4%+17%) cpu is given to both vm1 and vm2 not 100%-% taken by dom0? Thanks. Xuehai On Wed, 18 May 2005, Stephan Diestelhorst wrote: > The new sedf scheduler has been in the xen-unstable reopository for a > couple of days now. As it may become the default scheduler soon, any > testing now is much appreciated! > > Quick summary can be found in docs/misc/sedf_scheduler_mini-HOWTO.txt > > Future directions: > -effective scheduling of SMP-guests > -clever SMP locking in domains (on the way) > -timeslice donating (under construction) > -identifying gangs and schedule them together > -balancing of domains/ VCPUs > > Any comments/wishes/ideas/... on that are welcome! > > Best, > Stephan Diestelhorst > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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