linux-kernel - Re: 3.14.23-rt20 - softirq: resurrect softirq threads

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

Message-ID: <1424181620.2955.5.camel@gmail.com>
Date:	Tue, 17 Feb 2015 15:00:20 +0100
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Carsten Emde <C.Emde@...dl.org>,
	John Kacur <jkacur@...hat.com>,
	Clark Williams <williams@...hat.com>
Subject: Re: 3.14.23-rt20 - softirq: resurrect softirq threads

On Tue, 2015-02-17 at 14:05 +0100, Sebastian Andrzej Siewior wrote:
> * Mike Galbraith | 2014-11-02 08:31:47 [+0100]:
> 
> >(sirqs suck, this makes them suck less for some boxen/loads)
> >
> >Subject: softirq: resurrect softirq threads
> >From: Mike Galbraith <mgalbraith@...e.de>
> >Date: Mon Jan  6 08:42:11 CET 2014
> >
> >Some loads cannot tolerate the jitter induced by all softirqs being processed
> >at the same priority.  Let the user prioritize them again.
> >
> >Signed-off-by: Mike Galbraith <mgalbraith@...e.de>
> 
> I'm going to postpone this. While it might make sense in general I'm
> going to wait for tglx, Steven and others to see if this is what we want
> or if there are some plans redoing the softirq handling.

You can postpone this one forever, they don't want it.  I posted it for
folks who may want the option.

	-Mike

--
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/