Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 17 Jan 2002 12:19:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 17 Jan 2002 12:18:55 -0500 Received: from f198.law15.hotmail.com ([64.4.23.198]:49158 "EHLO hotmail.com") by vger.kernel.org with ESMTP id ; Thu, 17 Jan 2002 12:18:51 -0500 X-Originating-IP: [128.112.49.17] From: "Yinlei Yu" To: linux-kernel@vger.kernel.org Subject: Is there anyway to use 4M pages on x86 linux in user level? Date: Thu, 17 Jan 2002 12:18:45 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 17 Jan 2002 17:18:45.0692 (UTC) FILETIME=[05025FC0:01C19F7B] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I am working on a project that keep accessing lots of memory randomly(say 500MB-1.5GB) and we do have such amount of memory installed so there's almost no page faults while running the entire program. Since x86 architecutre has a 4M page feature, is it possible to make use of these big pages instead of 4K pages in my program (a user-level application) so I can expect much fewer TLB misses due to the reduced number of TLB entries? Thanks very much! _________________________________________________________________ Join the world?s largest e-mail service with MSN Hotmail. http://www.hotmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/