linux-kernel - Re: [REPORT] 2.6.21 vs. 2.6.21-sd046 vs. 2.6.21-CFSv7

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]

Message-ID: <20070430201659.GA5681@gnuppy.monkey.org>
Date:	Mon, 30 Apr 2007 13:16:59 -0700
From:	Bill Huey (hui) <billh@...ppy.monkey.org>
To:	Bill Davidsen <davidsen@....com>
Cc:	Linux Kernel M/L <linux-kernel@...r.kernel.org>,
	Con Kolivas <kernel@...ivas.org>, Ingo Molnar <mingo@...e.hu>,
	"Bill Huey (hui)" <billh@...ppy.monkey.org>
Subject: Re: [REPORT] 2.6.21 vs. 2.6.21-sd046 vs. 2.6.21-CFSv7

On Mon, Apr 30, 2007 at 03:58:45PM -0400, Bill Davidsen wrote:
> Followup: I reran with sd-0.46, setting rr_interval to 40, and then 5 
> (default was 16). Neither appeared to give a useful video playback. I 
> did try setting the make to nice 10, and that made the playback 
> perfectly smooth, as well as response to skip forward and volume change 
> happening when the key was pressed instead of eventually.
> 
> I also tried raising the nice of X to -10, that made things better on 
> display, but I winder if it will let X run ahead of the nice-0 raid threads.
> 
> Is this my hardware or is there a really odd behavior here? The sd seems 
> to be too fair to cope well with this realistic load, and expecting 
> users to nice things is probably morally correct but unrealistic.

People have been reporting very good performance with regards to OpenGL
applications under SD. What is your video driver ? NVidia proprietary ?

OpenGL, X and direct frame buffer access (mplayer and friends) tend not
to interact each other which can result in very different scheduling
characteristics between them.

[please CC the relevant people for their own benefit]

bill

-
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/