Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 1 Feb 2002 09:59:02 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 1 Feb 2002 09:58:52 -0500 Received: from sun.fadata.bg ([80.72.64.67]:64274 "HELO fadata.bg") by vger.kernel.org with SMTP id ; Fri, 1 Feb 2002 09:58:40 -0500 To: Cc: Anton Blanchard , Linus Torvalds , Andrea Arcangeli , Rik van Riel , John Stoffel , linux-kernel Subject: Re: [PATCH] Radix-tree pagecache for 2.5 In-Reply-To: X-No-CC: Reply to lists, not to me. From: Momchil Velikov In-Reply-To: Date: 01 Feb 2002 16:59:58 +0200 Message-ID: <87vgdhw8lt.fsf@fadata.bg> Lines: 12 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.1 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "Ingo" == Ingo Molnar writes: Ingo> files are used. With one big file (or a few big files), the i_shared_lock Ingo> will always bounce between CPUs wildly in read() workloads, degrading Will there be difference between bounces of a rwlock in the radix tree variant and the cache misses in hashed locks variant for the case of concurrently accessed large file ? Regards, -velco - 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/