Messages in this thread | | | Date | Sun, 13 Nov 2016 12:53:28 -0600 (CST) | From | Christoph Lameter <> | Subject | Re: [PATCH] sched/rt: RT_RUNTIME_GREED sched feature |
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On Fri, 11 Nov 2016, Peter Zijlstra wrote:
> On Fri, Nov 11, 2016 at 12:46:37PM -0600, Christoph Lameter wrote: > > On Thu, 10 Nov 2016, Daniel Vacek wrote: > > > > > I believe Daniel's patches are the best thing we can do in current > > > situation as the behavior now seems rather buggy and does not provide above > > > mentioned expectations set when rt throttling was merged with default > > > budget of 95% of CPU time. Nor if you configure so that it does (by > > > disabling RT_RUNTIME_SHARE), it also forces CPUs to go idle needlessly when > > > there still can be rt task running not really starving anyone. At least > > > till a proper rework of rt scheduling with DL Server is implemented. > > > > This looks like a fix for a bug and the company I work for is suffering > > as a result. Could we please merge that ASAP? > > > > What bug? And no, the patch has as many technical issues as it has > conceptual ones.
There is a deadlock, Peter!!!
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