Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030421AbVKPSsa (ORCPT ); Wed, 16 Nov 2005 13:48:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030439AbVKPSsa (ORCPT ); Wed, 16 Nov 2005 13:48:30 -0500 Received: from web34115.mail.mud.yahoo.com ([66.163.178.113]:7283 "HELO web34115.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S1030421AbVKPSsa (ORCPT ); Wed, 16 Nov 2005 13:48:30 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=awaAos7RTQuJOFOo1VEEsUM+xKXlYgxygEOjLYZI/mhVQwLP8O0zpQPiUZFYykXyJrHW/63n+XIOCPeJyVXc3hYHaxcckxfYTN7RmD8SrRBlwEnxwZN80zhU0QH0sve6OXjCRdv3YC6SsZHv4+YIui60wg/7d+xcgiTxeU3LquM= ; Message-ID: <20051116184829.79932.qmail@web34115.mail.mud.yahoo.com> Date: Wed, 16 Nov 2005 10:48:28 -0800 (PST) From: Kenny Simpson Subject: Re: mmap over nfs leads to excessive system load To: Trond Myklebust Cc: Andrew Morton , linux-kernel@vger.kernel.org In-Reply-To: <1132163057.8811.15.camel@lade.trondhjem.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1027 Lines: 36 --- Trond Myklebust wrote: > OK, please back out the patch that I sent you, and try this one instead. THAT'S IT! Very nice.. 30MB+/sec sustained for several minutes.. only 25% system CPU and the new profile is: samples % symbol name 1047754 32.9054 pci_conf1_write 193876 6.0888 _spin_lock_irqsave 152897 4.8018 skb_copy_bits 74745 2.3474 _spin_lock 73273 2.3012 __copy_from_user_ll 69273 2.1756 __lookup_tag 65084 2.0440 _spin_unlock_irqrestore 43803 1.3757 sub_preempt_count 32047 1.0065 tcp_v4_rcv 30895 0.9703 schedule 26161 0.8216 kfree Thank you! -Kenny __________________________________ Yahoo! FareChase: Search multiple travel sites in one click. http://farechase.yahoo.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/