From owner-cvs-src-old@FreeBSD.ORG  Tue Dec 16 16:04:45 2008
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 089B7106564A
	for <cvs-src-old@freebsd.org>; Tue, 16 Dec 2008 16:04:45 +0000 (UTC)
	(envelope-from mav@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id E94A18FC19
	for <cvs-src-old@freebsd.org>; Tue, 16 Dec 2008 16:04:44 +0000 (UTC)
	(envelope-from mav@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id mBGG4iw4083554
	for <cvs-src-old@freebsd.org>; Tue, 16 Dec 2008 16:04:44 GMT
	(envelope-from mav@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id mBGG4i2g083553
	for cvs-src-old@freebsd.org; Tue, 16 Dec 2008 16:04:44 GMT
	(envelope-from mav@repoman.freebsd.org)
Message-Id: <200812161604.mBGG4i2g083553@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	mav@repoman.freebsd.org using -f
From: Alexander Motin <mav@FreeBSD.org>
Date: Tue, 16 Dec 2008 16:04:40 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/dev/ata ata-pci.c ata-pci.h
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 16 Dec 2008 16:04:45 -0000

mav         2008-12-16 16:04:40 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/ata          ata-pci.c ata-pci.h 
  Log:
  SVN rev 186182 on 2008-12-16 16:04:40Z by mav
  
  Call ata_legacy() only once on attach and save it's result. Scanning PCI
  configuration registers (which are not going to change) on every interrupt
  looks expensive, especially when interrupt is shared. Profiling shows me 3%
  of time spent by atapci0 on pure network load due to IRQ sharing with em0.
  
  Revision  Changes    Path
  1.131     +19 -11    src/sys/dev/ata/ata-pci.c
  1.97      +1 -0      src/sys/dev/ata/ata-pci.h