On 2/13/2011 4:44 PM, KAMEZAWA Hiroyuki wrote: > On Sat, 12 Feb 2011 15:29:07 -0800 > Matt Helsley<matthltc@xxxxxxxxxx> wrote: > >> On Fri, Feb 11, 2011 at 11:10:44AM -0800, jacob.jun.pan@xxxxxxxxxxxxxxx wrote: >>> From: Jacob Pan<jacob.jun.pan@xxxxxxxxxxxxxxx> >>> >>> Freezer subsystem is used to manage batch jobs which can start >>> stop at the same time. However, sometime it is desirable to let >>> the kernel manage the freezer state automatically with a given >>> duty ratio. >>> For example, if we want to reduce the time that backgroup apps >>> are allowed to run we can put them into a freezer subsystem and >>> set the kernel to turn them THAWED/FROZEN at given duty ratio. >>> >>> This patch introduces two file nodes under cgroup >>> freezer.duty_ratio_pct and freezer.period_sec >> Again: I don't think this is the right approach in the long term. >> It would be better not to add this interface and instead enable the >> cpu cgroup subsystem for non-rt tasks using a similar duty ratio >> concept.. >> >> Nevertheless, I've added some feedback on the code for you here :). >> > AFAIK, there was a work for bandwidth control in CFS. > > http://linux.derkeiler.com/Mailing-Lists/Kernel/2010-10/msg04335.html > > I tested this and worked fine. This schduler approach seems better for > my purpose to limit bandwidth of apprications rather than freezer. for our purpose, it's not about bandwidth. it's about making sure the class of apps don't run for a long period (30-second range) of time. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
