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: <200707141319.13270.edt@aei.ca>
Date:	Sat, 14 Jul 2007 13:19:12 -0400
From:	Ed Tomlinson <edt@....ca>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mike Galbraith <efault@....de>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Dmitry Adamushko <dmitry.adamushko@...il.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
Subject: Re: [patch] CFS scheduler, -v19

Hi,

I run a java application at nice 15.  Its been a background application here for as long
as SD and CFS have been around.  If I have a compile running at nice 0, with v19 java 
gets so little cpu that the the wrapper that runs to monitor it is timing out waiting for 
it to start.  This is new in v19 - something in v19 is not meshing well with my mix 
of applications...

Kernel is gentoo 2.6.22-r1 + cfs v19

How can I help to debug this?
Ed Tomlinson

On Friday 06 July 2007 13:33, Ingo Molnar wrote:
> i'm pleased to announce release -v19 of the CFS scheduler patchset.
> 
> The rolled-up CFS patch against today's -git kernel, v2.6.22-rc7, 
> v2.6.22-rc6-mm1, v2.6.21.5 or v2.6.20.14 can be downloaded from the 
> usual place:
> 
>     http://people.redhat.com/mingo/cfs-scheduler/
>  
> The biggest user-visible change in -v19 is reworked sleeper fairness: 
> it's similar in behavior to -v18 but works more consistently across nice 
> levels. Fork-happy workloads (like kernel builds) should behave better 
> as well. There are also a handful of speedups: unsigned math, 32-bit 
> speedups, O(1) task pickup, debloating and other micro-optimizations.
-
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ