From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qc0-f169.google.com (mail-qc0-f169.google.com [209.85.216.169]) by kanga.kvack.org (Postfix) with ESMTP id 296FD6B0035 for ; Wed, 23 Apr 2014 15:54:26 -0400 (EDT) Received: by mail-qc0-f169.google.com with SMTP id i17so1496965qcy.14 for ; Wed, 23 Apr 2014 12:54:25 -0700 (PDT) Received: from qmta06.emeryville.ca.mail.comcast.net (qmta06.emeryville.ca.mail.comcast.net. [2001:558:fe2d:43:76:96:30:56]) by mx.google.com with ESMTP id h76si1053375qge.17.2014.04.23.12.54.25 for ; Wed, 23 Apr 2014 12:54:25 -0700 (PDT) Date: Wed, 23 Apr 2014 14:54:21 -0500 (CDT) From: Christoph Lameter 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: owner-linux-mm@kvack.org List-ID: 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 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org