From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BAC8C4332F for ; Wed, 10 Nov 2021 16:07:40 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1A72F61205 for ; Wed, 10 Nov 2021 16:07:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1A72F61205 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 6FFBE6B006C; Wed, 10 Nov 2021 11:07:39 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 6AF746B0071; Wed, 10 Nov 2021 11:07:39 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 575DD6B0072; Wed, 10 Nov 2021 11:07:39 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0022.hostedemail.com [216.40.44.22]) by kanga.kvack.org (Postfix) with ESMTP id 49A2C6B006C for ; Wed, 10 Nov 2021 11:07:39 -0500 (EST) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id A871418446BCA for ; Wed, 10 Nov 2021 16:07:38 +0000 (UTC) X-FDA: 78793500996.09.E73A7FD Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by imf23.hostedemail.com (Postfix) with ESMTP id 2572190000BA for ; Wed, 10 Nov 2021 16:07:23 +0000 (UTC) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id BCB8A1FD33; Wed, 10 Nov 2021 16:07:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1636560456; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=PPgM0a73dB6hv2TqWrr8loL+EBdXIVciUhuFI52YlVU=; b=iAOf10MqrIm8dgZM+vuAFKIjE3oK2/QoiLcGdc5XsjLsd4nz8xO8J3zbfu2E/jgvxLp4Na fkkVU4S1ihq0NU4n+RuuXoQQESskzFXJO/ooXfJMCuUnaThzsMy0/xnmrGMVEtbjvOGkNS eEOpjh+6wc74ogI0ZHE4HCbjrSrH/NU= Received: from suse.cz (unknown [10.100.201.86]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 20C27A3B81; Wed, 10 Nov 2021 16:07:36 +0000 (UTC) Date: Wed, 10 Nov 2021 17:07:33 +0100 From: Michal Hocko To: Georgi Djakov Cc: hannes@cmpxchg.org, vincent.guittot@linaro.org, juri.lelli@redhat.com, peterz@infradead.org, mingo@redhat.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vdavydov.dev@gmail.com, tj@kernel.org, axboe@kernel.dk, cgroups@vger.kernel.org, linux-block@vger.kernel.org, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, djakov@kernel.org Subject: Re: [RFC] psi: Add additional PSI counters for each type of memory pressure Message-ID: References: <1636558597-248294-1-git-send-email-quic_c_gdjako@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1636558597-248294-1-git-send-email-quic_c_gdjako@quicinc.com> Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=suse.com header.s=susede1 header.b=iAOf10Mq; spf=pass (imf23.hostedemail.com: domain of mhocko@suse.com designates 195.135.220.29 as permitted sender) smtp.mailfrom=mhocko@suse.com; dmarc=pass (policy=quarantine) header.from=suse.com X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 2572190000BA X-Stat-Signature: atgmwykhbnok9xh57mqcd4wubqen4ouh X-HE-Tag: 1636560443-591731 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed 10-11-21 07:36:37, Georgi Djakov wrote: > From: Carlos Ramirez > > Calculates psi totals for memory pressure subevents: > compaction, thrashing, direct compaction, direct reclaim, and kswapd0. > Uses upper 16 bits of psi_flags to track memory subevents. Could you elaborate on the definition of those events please? That should also go to Documentation (Documentation/accounting/psi.rst) -- Michal Hocko SUSE Labs