linux-kernel - Re: CFS review

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:	Tue, 28 Aug 2007 09:43:35 +0200
From:	Xavier Bestel <xavier.bestel@...e.fr>
To:	Al Boldi <a1426z@...ab.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	Mike Galbraith <efault@....de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: CFS review

On Tue, 2007-08-28 at 07:37 +0300, Al Boldi wrote:
> start gears like this:
> 
>   # gears & gears & gears &
> 
> Then lay them out side by side to see the periodic stallings for
> ~10sec.

Are you sure they are stalled ? What you may have is simple gears
running at a multiple of your screen refresh rate, so they only appear
stalled.

Plus, as said Linus, you're not really testing the kernel scheduler.
gears is really bad benchmark, it should die.

	Xav


-
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/