Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757951AbaDWTy1 (ORCPT ); Wed, 23 Apr 2014 15:54:27 -0400 Received: from qmta04.emeryville.ca.mail.comcast.net ([76.96.30.40]:59636 "EHLO qmta04.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757622AbaDWTyZ (ORCPT ); Wed, 23 Apr 2014 15:54:25 -0400 Date: Wed, 23 Apr 2014 14:54:21 -0500 (CDT) From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Max Krasnyansky cc: Viresh Kumar , Andrew Morton , Gilad Ben-Yossef , Thomas Gleixner , Tejun Heo , John Stultz , Mike Frysinger , Minchan Kim , Hakan Akkan , Frederic Weisbecker , "Paul E. McKenney" , "linux-kernel@vger.kernel.org" , linux-mm@kvack.org Subject: Re: vmstat: On demand vmstat workers V3 In-Reply-To: <5357EF4D.6080302@qti.qualcomm.com> Message-ID: References: <000001417f6834f1-32b83f22-8bde-4b9e-b591-bc31329660e4-000000@email.amazonses.com> <5357EF4D.6080302@qti.qualcomm.com> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 23 Apr 2014, Max Krasnyansky wrote: > The updates are done via the regular priority workqueue. Yup so things could be fixed at that level with setting an additional workqueue flag? > I'm playing with isolation as well (has been more or less a background thing > for the last 6+ years). Our threads that run on the isolated cores are SCHED_FIFO > and therefor low prio workqueue stuff, like vmstat, doesn't get in the way. > I do have a few patches for the workqueues to make things better for isolation. Would you share those with us please? -- 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/