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:	Thu, 31 Aug 2006 15:21:02 +1000
From:	Peter Williams <pwil3058@...pond.net.au>
To:	Mike Galbraith <efault@....de>
CC:	balbir@...ibm.com, Martin Ohlin <martin.ohlin@...trol.lth.se>,
	linux-kernel@...r.kernel.org
Subject: Re: A nice CPU resource controller

Mike Galbraith wrote:
> On Thu, 2006-08-31 at 11:07 +1000, Peter Williams wrote:
> 
>> But your implication here is valid.  It is better to fiddle with the 
>> dynamic priorities than with nice as this leaves nice for its primary 
>> purpose of enabling the sysadmin to effect the allocation of CPU 
>> resources based on external considerations.
> 
> I don't understand.  It _is_ the administrator fiddling with nice based
> on external considerations.  It just steadies the administrator's hand.

Not exactly.  If "nice" is being (automatically) fiddled to meet some 
measurable requirement such as the amount of CPU tasks get it is no 
longer available as a means for the indication of the relative 
importance of the tasks.  I.e. it can't be both the means for saying 
which tasks should be allocated the most CPU and the means by which that 
allocation is controlled.

Peter
-- 
Peter Williams                                   pwil3058@...pond.net.au

"Learning, n. The kind of ignorance distinguishing the studious."
  -- Ambrose Bierce
-
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