From owner-svn-src-projects@FreeBSD.ORG  Mon Mar 16 23:08:38 2009
Return-Path: <owner-svn-src-projects@FreeBSD.ORG>
Delivered-To: svn-src-projects@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 61A92106566C;
	Mon, 16 Mar 2009 23:08:38 +0000 (UTC)
	(envelope-from rwatson@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 501F18FC1B;
	Mon, 16 Mar 2009 23:08:38 +0000 (UTC)
	(envelope-from rwatson@FreeBSD.org)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id n2GN8cmI074730;
	Mon, 16 Mar 2009 23:08:38 GMT (envelope-from rwatson@svn.freebsd.org)
Received: (from rwatson@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id n2GN8ck3074729;
	Mon, 16 Mar 2009 23:08:38 GMT (envelope-from rwatson@svn.freebsd.org)
Message-Id: <200903162308.n2GN8ck3074729@svn.freebsd.org>
From: Robert Watson <rwatson@FreeBSD.org>
Date: Mon, 16 Mar 2009 23:08:38 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-projects@freebsd.org
X-SVN-Group: projects
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r189901 - projects/pnet/sys/net
X-BeenThere: svn-src-projects@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "SVN commit messages for the src &quot; projects&quot;
	tree" <svn-src-projects.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-projects>, 
	<mailto:svn-src-projects-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-projects>
List-Post: <mailto:svn-src-projects@freebsd.org>
List-Help: <mailto:svn-src-projects-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-projects>, 
	<mailto:svn-src-projects-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Mar 2009 23:08:38 -0000

Author: rwatson
Date: Mon Mar 16 23:08:38 2009
New Revision: 189901
URL: http://svn.freebsd.org/changeset/base/189901

Log:
  Force 64-byte alignment of workstreams so that sequential arrays, indexed
  by CPU ID, are less likely to cause cache line thrashing.

Modified:
  projects/pnet/sys/net/netisr2.c

Modified: projects/pnet/sys/net/netisr2.c
==============================================================================
--- projects/pnet/sys/net/netisr2.c	Mon Mar 16 19:31:08 2009	(r189900)
+++ projects/pnet/sys/net/netisr2.c	Mon Mar 16 23:08:38 2009	(r189901)
@@ -225,7 +225,7 @@ struct netisr_workstream {
 	 * Each protocol has per-workstream data.
 	 */
 	struct netisr_work	nws_work[NETISR_MAXPROT];
-};
+} __aligned(64);
 
 /*
  * Kernel process associated with worker threads.