netdev - Re: [BUG #12364] Re: HTB - very bad precision? HFSC works fine! 2.6.28

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: <Pine.LNX.4.64.0901122052510.4748@ask.diku.dk>
Date:	Mon, 12 Jan 2009 20:58:22 +0100 (CET)
From:	Jesper Dangaard Brouer <hawk@...u.dk>
To:	Denys Fedoryschenko <denys@...p.net.lb>
Cc:	Patrick McHardy <kaber@...sh.net>, netdev <netdev@...r.kernel.org>,
	bugme-daemon@...zilla.kernel.org
Subject: Re: [BUG #12364] Re: HTB - very bad precision? HFSC works
 fine!	2.6.28

On Mon, 12 Jan 2009, Denys Fedoryschenko wrote:

> End of my story:
> 1000HZ solved issue. HTB and HFSC keeps rate MUCH better.
> Both looks like perform similar, but because it is real load scenario, i
> cannot measure which one is better.

If that was you problem, you should consider enabling 
CONFIG_HIGH_RES_TIMERS (and possibly CONFIG_NO_HZ).

Patrick McHardy has at some point made the sched code independent of the 
HZ value, but only when the HIGH_RES_TIMERS are enabled.

Cheers,
   Jesper Brouer

--
-------------------------------------------------------------------
MSc. Master of Computer Science
Dept. of Computer Science, University of Copenhagen
Author of http://www.adsl-optimizer.dk
-------------------------------------------------------------------
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html