Good morning, Peter. On Mon, Oct 12, 2015 at 10:04:07AM +0200, Peter Zijlstra wrote: > On Mon, Oct 12, 2015 at 09:44:57AM +0200, Mike Galbraith wrote: > > > It's odd to me that things look pretty much the same good/bad tree with > > hogs vs hogs or hogs vs tbench (with top anyway, just adding up times). > > Seems Xorg+mplayer more or less playing cross group ping-pong must be > > the BadThing trigger. > > Ohh, wait, Xorg and mplayer are _not_ in the same group? I was assuming > you had your entire user session in 1 (auto) group and was competing > against 8 manual cgroups. > > So how exactly are things configured? Hmm... my impression is the naughty boy mplayer (+Xorg) isn't favored, due to the per CPU group entity share distribution. Let me dig more.
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