From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 05 Apr 2011 14:21:40 +0200 (CEST) Received: from localhost.localdomain ([127.0.0.1]:33443 "EHLO duck.linux-mips.net" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S1491778Ab1DEMVh (ORCPT ); Tue, 5 Apr 2011 14:21:37 +0200 Received: from duck.linux-mips.net (duck.linux-mips.net [127.0.0.1]) by duck.linux-mips.net (8.14.4/8.14.3) with ESMTP id p35CLWHD009222; Tue, 5 Apr 2011 14:21:32 +0200 Received: (from ralf@localhost) by duck.linux-mips.net (8.14.4/8.14.4/Submit) id p35CLSXd009215; Tue, 5 Apr 2011 14:21:28 +0200 Date: Tue, 5 Apr 2011 14:21:28 +0200 From: Ralf Baechle To: "wilbur.chan" Cc: Linux MIPS Mailing List , "Jayachandran C." Subject: Re: System suffers frequent TLB miss Message-ID: <20110405122128.GB31210@linux-mips.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 29688 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips On Sun, Apr 03, 2011 at 11:49:13AM +0800, wilbur.chan wrote: > We have a system running on mips64 xlr 732. Our major application > process is binded on CPU5, > > In order to reduce the tlb miss of our major process, we took the > following steps: What page size are you using? If you're still using 4K pages, try switching to 16K or even 64K pages. You also may want to look into using hugetlbfs. Ralf