From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com [209.85.128.197]) by kanga.kvack.org (Postfix) with ESMTP id E37E46B039F for ; Tue, 4 Apr 2017 07:25:19 -0400 (EDT) Received: by mail-wr0-f197.google.com with SMTP id z109so28066915wrb.1 for ; Tue, 04 Apr 2017 04:25:19 -0700 (PDT) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id z50si24084319wrz.218.2017.04.04.04.25.18 for (version=TLS1 cipher=AES128-SHA bits=128/128); Tue, 04 Apr 2017 04:25:18 -0700 (PDT) Date: Tue, 4 Apr 2017 13:25:15 +0200 From: Michal Hocko Subject: Re: Heavy I/O causing slow interactivity Message-ID: <20170404112514.GB15490@dhcp22.suse.cz> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Raymond Jennings Cc: Linux Memory Management List On Mon 03-04-17 10:39:39, Raymond Jennings wrote: > I'm running gentoo and it's emerging llvm. This I/O heavy process is > causing slowdowns when I attempt interactive stuff, including watching > a youtube video and accessing a chatroom. > > Similar latency is induced during a heavy database application. > > As an end user is there anything I can do to better support > interactive performance? > > And as a potential kernel developer, is there anything I could tweak > in the kernel source to mitigate this behavior? How much memory do you have? What is your /proc/sys/vm/dirty_* setting? What kind of storage do you use? -- Michal Hocko SUSE Labs -- 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