linux-kernel - Re: Network slowdown due to CFS

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Sun, 7 Oct 2007 09:18:11 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jarek Poplawski <jarkao2@...pl>
Cc:	David Schwartz <davids@...master.com>, linux-kernel@...r.kernel.org
Subject: Re: Network slowdown due to CFS


* Jarek Poplawski <jarkao2@...pl> wrote:

> > [...] The timeslices of tasks (i.e. the time they spend on a CPU 
> > without scheduling away) is _not_ maintained directly in CFS as a 
> > per-task variable that can be "cleared", it's not the metric that 
> > drives scheduling. Yes, of course CFS too "slices up CPU time", but 
> > those slices are not the per-task variables of traditional 
> > schedulers and cannot be 'cleared'.
> 
> It's not about this comment alone, but this comment plus "no notion" 
> comment, which appears in sched-design-CFS.txt too.

ok - i've re-read it and it indeed is somewhat confusing without 
additional context. I'll improve the wording. (sched-design-CFS.txt 
needs an update anyway)

	Ingo
-
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/