From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f197.google.com (mail-qk0-f197.google.com [209.85.220.197]) by kanga.kvack.org (Postfix) with ESMTP id 71B326B0069 for ; Sun, 4 Dec 2016 16:57:35 -0500 (EST) Received: by mail-qk0-f197.google.com with SMTP id h201so251079301qke.7 for ; Sun, 04 Dec 2016 13:57:35 -0800 (PST) Received: from mail-qt0-x229.google.com (mail-qt0-x229.google.com. [2607:f8b0:400d:c0d::229]) by mx.google.com with ESMTPS id l126si7622538qkd.76.2016.12.04.13.57.34 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 04 Dec 2016 13:57:34 -0800 (PST) Received: by mail-qt0-x229.google.com with SMTP id n6so298602743qtd.1 for ; Sun, 04 Dec 2016 13:57:34 -0800 (PST) MIME-Version: 1.0 From: Raymond Jennings Date: Sun, 4 Dec 2016 13:56:54 -0800 Message-ID: Subject: Silly question about dethrottling Content-Type: multipart/alternative; boundary=001a11407a10340c4c0542dc4251 Sender: owner-linux-mm@kvack.org List-ID: To: Linux Memory Management List --001a11407a10340c4c0542dc4251 Content-Type: text/plain; charset=UTF-8 I have an application that is generating HUGE amounts of dirty data. Multiple GiB worth, and I'd like to allow it to fill at least half of my RAM. I already have /proc/sys/vm/dirty_ratio pegged at 80 and the background one pegged at 50. RAM is 32GiB. it appears to be butting heads with clean memory. How do I tell my system to prefer using RAM to soak up writes instead of caching? Atm I'm at the stage where I'm prepared to patch the kernel itself. --001a11407a10340c4c0542dc4251 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I have an application that is generating HUGE amounts of d= irty data.=C2=A0 Multiple GiB worth, and I'd like to allow it to fill a= t least half of my RAM.

I already have /proc/sys/vm/dirt= y_ratio pegged at 80 and the background one pegged at 50.=C2=A0 RAM is 32Gi= B.

it appears to be butting heads with clean memor= y.=C2=A0 How do I tell my system to prefer using RAM to soak up writes inst= ead of caching?

Atm I'm at the stage where I&#= 39;m prepared to patch the kernel itself.
--001a11407a10340c4c0542dc4251-- -- 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