From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fmsmsxvs041.fm.intel.com (fmsmsxvs041.fm.intel.com [132.233.42.126]) by mail2.hd.intel.com (8.11.6/8.11.6/d: solo.mc,v 1.43 2002/08/30 20:06:11 dmccart Exp $) with SMTP id g8HLNBc09950 for ; Tue, 17 Sep 2002 21:23:11 GMT Message-ID: <39B5C4829263D411AA93009027AE9EBB13299719@fmsmsx35.fm.intel.com> From: "Luck, Tony" Subject: RE: [Lse-tech] Re: Examining the Performance and Cost of Revesema ps on 2.5.26 Under Heavy DBWorkload Date: Tue, 17 Sep 2002 14:22:36 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linux-mm@kvack.org From: Martin J. Bligh [mailto:mbligh@aracnet.com] Return-Path: To: "'Martin J. Bligh'" , Andrew Morton , Peter Wong Cc: linux-mm@kvack.org, lse-tech@lists.sourceforge.net, riel@nl.linux.org, wli@holomorphy.com, dmccr@us.ibm.com, gh@us.ibm.com, Bill Hartner , Troy C Wilson List-ID: > > That's a ton of memory. Where do we stand wrt getting these > > applications to use large-tlb pages? > > We need standard interfaces (like shmem) to get DB2 to port, and probably > most other applications. Having magic system calls is all very well in theory, > but not much use in practice. > > And yes, we're still working on it. Can't you use LD_PRELOAD tricks to sneak a different version shmget/shmat to your DB2 binary so that you can intercept the important calls and divert them to use huge tlb pages? -Tony -- 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/