Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755153AbbDOHYh (ORCPT ); Wed, 15 Apr 2015 03:24:37 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:33942 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752517AbbDOHY2 (ORCPT ); Wed, 15 Apr 2015 03:24:28 -0400 Date: Wed, 15 Apr 2015 09:24:23 +0200 From: Ingo Molnar To: Linus Torvalds Cc: Jason Low , Peter Zijlstra , Thomas Gleixner , Linux Kernel Mailing List , "Paul E. McKenney" , Andrew Morton , Oleg Nesterov , Mike Galbraith , Frederic Weisbecker , Mel Gorman , Steven Rostedt , Preeti U Murthy , hideaki.kimura@hp.com, Aswin Chandramouleeswaran , Scott J Norton Subject: Re: [PATCH 0/3] sched, timer: Improve scalability of itimers Message-ID: <20150415072422.GA13449@gmail.com> References: <1429052986-9420-1-git-send-email-jason.low2@hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Content-Length: 801 Lines: 22 * Linus Torvalds wrote: > On Tue, Apr 14, 2015 at 4:09 PM, Jason Low wrote: > > This patchset improves the scalability of itimers, thread_group_cputimer > > and addresses a performance issue we found while running a database > > workload where more than 30% of total time is spent in the kernel > > trying to acquire the thread_group_cputimer spinlock. > > I'm ok with this series, but I'm going to assume that I'll get it > through the scheduler tree. Ingo? Yeah, will pick them up! Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/