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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FC02C433EF for ; Tue, 30 Nov 2021 18:38:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245537AbhK3SmH (ORCPT ); Tue, 30 Nov 2021 13:42:07 -0500 Received: from shark2.inbox.lv ([194.152.32.82]:33306 "EHLO shark2.inbox.lv" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229951AbhK3SmH (ORCPT ); Tue, 30 Nov 2021 13:42:07 -0500 Received: from shark2.inbox.lv (localhost [127.0.0.1]) by shark2-out.inbox.lv (Postfix) with ESMTP id 79DF9C0199; Tue, 30 Nov 2021 20:38:46 +0200 (EET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=inbox.lv; s=30062014; t=1638297526; bh=BEyYRApqsqPgfBPxdS8CKfzax9QZDjnvQ2ldgIGpwDk=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=Z0N8nheiRV6C73uvKwMTkSaSi09rbNlTDXASywsnAJ5hFAkXKLZ0/yGBAme1NuQtr fFaXzWOK0F2Pfk7JGQ1p6nZUYIlg6fm9BRdcWaYZzBWB+kkprL+cuNSPi9MhptC5Lg jNLfaITvChpzI4O9B/m+/cI6j1S3Rfb7PxunxUa8= Received: from localhost (localhost [127.0.0.1]) by shark2-in.inbox.lv (Postfix) with ESMTP id 6B929C0179; Tue, 30 Nov 2021 20:38:46 +0200 (EET) Received: from shark2.inbox.lv ([127.0.0.1]) by localhost (shark2.inbox.lv [127.0.0.1]) (spamfilter, port 35) with ESMTP id yMbWe0OGI621; Tue, 30 Nov 2021 20:38:46 +0200 (EET) Received: from mail.inbox.lv (pop1 [127.0.0.1]) by shark2-in.inbox.lv (Postfix) with ESMTP id 2504CC00DB; Tue, 30 Nov 2021 20:38:46 +0200 (EET) Date: Wed, 1 Dec 2021 03:38:36 +0900 From: Alexey Avramov To: Mel Gorman Cc: Andrew Morton , Michal Hocko , Vlastimil Babka , Rik van Riel , Mike Galbraith , Darrick Wong , regressions@lists.linux.dev, Linux-fsdevel , Linux-MM , LKML Subject: Re: [PATCH 1/1] mm: vmscan: Reduce throttling due to a failure to make progress Message-ID: <20211201033836.4382a474@mail.inbox.lv> In-Reply-To: <20211130172754.GS3366@techsingularity.net> References: <20211125151853.8540-1-mgorman@techsingularity.net> <20211127011246.7a8ac7b8@mail.inbox.lv> <20211129150117.GO3366@techsingularity.net> <20211201010348.31e99637@mail.inbox.lv> <20211130172754.GS3366@techsingularity.net> X-Mailer: Claws Mail 3.14.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Virus-Scanned: OK X-ESPOL: EZeEAiZdhRs1tcG/N/0M6uTt2NezU0Qivi7kzL4y9QEqu9Gkr7wBfW6TGofmHgq/cWbD Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >due to the >underlying storage. I agree. >and send me the trace.out file please? https://drive.google.com/file/d/1FBjAmXwXakWPPjcn6K-B50S04vyySQO6/view Typical entries: Timer-10841 [006] ..... 14341.639496: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK gmain-1246 [004] ..... 14341.639498: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK php7.0-11149 [001] ..... 14341.647498: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK obfs-local-908 [001] ..... 14341.651510: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK Web Content-10876 [000] ..... 14341.651522: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK NetworkManager-812 [004] ..... 14341.667495: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK tor-941 [000] ..... 14341.667495: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK IndexedDB #18-11165 [007] ..... 14341.667520: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK Timer-10755 [002] ..... 14341.667538: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK JS Watchdog-10884 [000] ..... 14341.699489: mm_vmscan_throttled: nid=0 usec_timeout=100000 usect_delayed=100000 reason=VMSCAN_THROTTLE_WRITEBACK