From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757179AbaEFLWL (ORCPT ); Tue, 6 May 2014 07:22:11 -0400 Received: from mail.skyhub.de ([78.46.96.112]:34409 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754671AbaEFLWI (ORCPT ); Tue, 6 May 2014 07:22:08 -0400 Date: Tue, 6 May 2014 13:22:04 +0200 From: Borislav Petkov To: Steven Rostedt Cc: lkml , x86-ml , Peter Zijlstra , Mel Gorman , Mike Galbraith , Thomas Gleixner Subject: Re: Slow down stupid pounders Message-ID: <20140506112204.GB25013@pd.tnic> References: <20140506102924.GA25013@pd.tnic> <20140506070854.757fd3ea@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20140506070854.757fd3ea@gandalf.local.home> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 06, 2014 at 07:08:54AM -0400, Steven Rostedt wrote: > Hey, I'm one of those that jerk off to CPU hotplug stress test scripts! I know you are, Mike gave me your script. Like you haven't done enough! :-P > We were just bitching about this yesterday, but -rt related. As > anything crap in mainline just becomes exponentially more crap in -rt. > The CPU hotplug case becomes a mountain of crap that we just dig > tunnels through to get by. > > A while ago Thomas had a proof of concept patch I believe that was > suppose to pick up traction but unfortunately never went anywhere, even > after being told it would. > > The real option is to rewrite cpu hotplug. I know, and we might get lucky, after all. I'm proposing this as a temporary thing until we have the real deal in place. I simply would like to shoo those pounding beaks in the interim. :-) -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --