From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f199.google.com (mail-qt0-f199.google.com [209.85.216.199]) by kanga.kvack.org (Postfix) with ESMTP id BE4D96B0038 for ; Mon, 3 Apr 2017 13:40:21 -0400 (EDT) Received: by mail-qt0-f199.google.com with SMTP id b9so49291679qtg.4 for ; Mon, 03 Apr 2017 10:40:21 -0700 (PDT) Received: from mail-qk0-x233.google.com (mail-qk0-x233.google.com. [2607:f8b0:400d:c09::233]) by mx.google.com with ESMTPS id y88si12523727qtd.8.2017.04.03.10.40.20 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Apr 2017 10:40:20 -0700 (PDT) Received: by mail-qk0-x233.google.com with SMTP id p22so120958377qka.3 for ; Mon, 03 Apr 2017 10:40:20 -0700 (PDT) MIME-Version: 1.0 From: Raymond Jennings Date: Mon, 3 Apr 2017 10:39:39 -0700 Message-ID: Subject: Heavy I/O causing slow interactivity Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Linux Memory Management List 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? I've tried SCHED_IDLE and idle class with ionice, both to no avail. -- 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