linux-kernel - Re: 4.3 group scheduling regression

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20151012080407.GJ3816@twins.programming.kicks-ass.net>
Date:	Mon, 12 Oct 2015 10:04:07 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Mike Galbraith <umgwanakikbuti@...il.com>
Cc:	linux-kernel@...r.kernel.org, Yuyang Du <yuyang.du@...el.com>
Subject: Re: 4.3 group scheduling regression

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?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/