linux-kernel - Re: BFS vs. mainline scheduler benchmarks and measurements

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, 8 Sep 2009 01:38:00 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Nikos Chantziaras <realnc@...or.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: BFS vs. mainline scheduler benchmarks and measurements

On Tue, 08 Sep 2009 10:19:06 +0300
Nikos Chantziaras <realnc@...or.de> wrote:

> latencytop has this to say:
> 
>    http://foss.math.aegean.gr/~realnc/pics/latop1.png
> 
> Though I don't really understand what this tool is trying to tell me,
> I hope someone does.

despite the untranslated content, it is clear that you have scheduler
delays (either due to scheduler bugs or cpu contention) of upto 68
msecs... Second in line is your binary AMD graphics driver that is
chewing up 14% of your total latency...

-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
--
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/