Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263716AbTH0QRf (ORCPT ); Wed, 27 Aug 2003 12:17:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263588AbTH0QHl (ORCPT ); Wed, 27 Aug 2003 12:07:41 -0400 Received: from dns10.mail.yahoo.co.jp ([210.81.151.143]:38035 "HELO dns10.mail.yahoo.co.jp") by vger.kernel.org with SMTP id S263610AbTH0QCv (ORCPT ); Wed, 27 Aug 2003 12:02:51 -0400 X-Apparently-From: Message-ID: <003101c36cb4$a785e930$0b01a8c0@CELERON> From: "YoshiyaETO" To: References: <000801c36cb1$454d4950$1001a8c0@etofmv650> Subject: Re: cache limit Date: Thu, 28 Aug 2003 01:02:45 +0900 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 839 Lines: 19 > On Wed, 27 Aug 2003 02:45:12 -0700, William Lee Irwin III wrote: > >> How do you know it would be effective? Have you written a patch to > >> limit it in some way and tried running it? > > On Wed, Aug 27, 2003 at 08:14:12PM +0900, Takao Indoh wrote: > > It's just my guess. You mean that "index cache" is on the pagecache? > > "index cache" is allocated in the user space by malloc, > > so I think it is not on the pagecache. > > That will be in the pagecache. No. DBMS usually uses DIRECTIO that bypass the pagecache. So, "index caches" in the DBMS user space will not be in pagecache. - 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/