From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: Significant Memory Reduction Using Huge Page Patch on Database Workload Message-ID: From: "Peter Wong" Date: Fri, 25 Oct 2002 13:38:23 -0500 MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org Return-Path: To: akpm@zip.com.au, William Lee Irwin III , linux-mm@kvack.org, lse-tech@lists.sourceforge.net Cc: Bill Hartner , "Martin J. Bligh" List-ID: Peter Wong wrote: > > Based upon the performance metrics and CPU utilization, the two >kernels achieve similar performance. However, memory consumption >by rmap and page tables is reduced significantly by using Bill's >patch. > > > 2.5.43-mm2 2.5.43-mm2+huge > ============================================================== > pte_chain (max) (MB) 4.3 182.4 > > > PageTables (max) (MB) 9.5 153.7 > > > In total, we save ~322 MB in the low memory area. The "2.5.43-mm2" and "2.5.43-mm2+huge" in the header should be switched. Regards, Peter Peter Wai Yee Wong IBM LTC Performance Team email: wpeter@us.ibm.com -- 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/