linux-kernel - RE: [PATCH] scheduler: introduce SCHED_RESET_ON

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>] [day] [month] [year] [list]

Message-ID: <5d96567b0907030533r5db79f9bi709f50d270706867@mail.gmail.com>
Date:	Fri, 3 Jul 2009 15:33:01 +0300
From:	Raz <raziebe@...il.com>
To:	mzxreary@...inter.de
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] scheduler: introduce SCHED_RESET_ON_FORK scheduling 
	policy flag, Second try

Lennart  Hello
I had the same problem several years ago, but in the servers arena.
in order to solve it  I partitioned the solution to two:
1. UNI processors machines
2. SMP processors machines

In UNI processor I created a RT kthread that polls over RTC device.
The observed jitter was 400us.
in SMP processors machine we created a new type of scheduling , called offline.
what i did it to offload a processor and assign it task. jitter is
250us under heavy load. solution is open source and can be found at :
http://sos-linux.svn.sourceforge.net/viewvc/sos-linux/offsched/Documentation/

Raz
--
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/