From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yw0-f197.google.com (mail-yw0-f197.google.com [209.85.161.197]) by kanga.kvack.org (Postfix) with ESMTP id 805D46B0007 for ; Thu, 12 Jul 2018 16:08:25 -0400 (EDT) Received: by mail-yw0-f197.google.com with SMTP id r144-v6so18729801ywg.9 for ; Thu, 12 Jul 2018 13:08:25 -0700 (PDT) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id a14-v6sor6577289ybr.71.2018.07.12.13.08.24 for (Google Transport Security); Thu, 12 Jul 2018 13:08:24 -0700 (PDT) Date: Thu, 12 Jul 2018 13:08:21 -0700 From: Tejun Heo Subject: Re: [PATCH 09/10] psi: cgroup support Message-ID: <20180712200821.GN72677@devbig577.frc2.facebook.com> References: <20180712172942.10094-1-hannes@cmpxchg.org> <20180712172942.10094-10-hannes@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180712172942.10094-10-hannes@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-ID: To: Johannes Weiner Cc: Ingo Molnar , Peter Zijlstra , Andrew Morton , Linus Torvalds , Suren Baghdasaryan , Vinayak Menon , Christopher Lameter , Mike Galbraith , Shakeel Butt , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com On Thu, Jul 12, 2018 at 01:29:41PM -0400, Johannes Weiner wrote: > On a system that executes multiple cgrouped jobs and independent > workloads, we don't just care about the health of the overall system, > but also that of individual jobs, so that we can ensure individual job > health, fairness between jobs, or prioritize some jobs over others. > > This patch implements pressure stall tracking for cgroups. In kernels > with CONFIG_PSI=y, cgroup2 groups will have cpu.pressure, > memory.pressure, and io.pressure files that track aggregate pressure > stall times for only the tasks inside the cgroup. > > Signed-off-by: Johannes Weiner Acked-by: Tejun Heo Please feel free to route with the rest of the patchset. Thanks. -- tejun