Messages in this thread |  | | | Date | Wed, 17 Nov 2010 16:32:29 +0800 | | From | Lai Jiangshan <> | | Subject | Re: [PATCH v3 0/7] CFS Bandwidth Control |
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On 10/12/2010 03:49 PM, Bharata B Rao wrote: > Hi, > > Its been a while since we posted CPS hard limits (aka CFS bandwidth control > now) patches, hence a quick recap first: > > - I have been working on CFS hard limits since last year and have posted > a few versions of the same (last post: http://lkml.org/lkml/2010/1/5/44) > - Paul Turner and Nikhil Rao meanwhile started working on CFS bandwidth > control and have posted a couple of versions. > (last post v2: http://lwn.net/Articles/385055/) >
Hi, All
I tried it, it works very good! It adds a very useful feature. It is very helpful for virtualization or cloud-computing I think. I hope the next version patchset of it will be sent and get merged soon.
When I tested it, my box became dead several times, infrequently, and I don't know how to reproduce it, but next steps may help to reproduce it:
# mount -t cgroup -o cpu xxx /mnt # cd /mnt # mkdir test # cd test # echo 5000000 > cpu.cfs_period_us # echo 1000000 > cpu.cfs_quota_us # cat /dev/zero > /dev/null & # echo $! > tasks # #make the system busy, browse websites and open many tabs in your browser etc # #but do NOT do things important. # #after some time, the system may dead. (can not respond even you type AltSysrqC) Thank you all Lai
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