From owner-svn-doc-head@FreeBSD.ORG Fri Jul 11 14:44:26 2014 Return-Path: Delivered-To: svn-doc-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id BDEF8A2E; Fri, 11 Jul 2014 14:44:26 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9DB1320D8; Fri, 11 Jul 2014 14:44:26 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.8/8.14.8) with ESMTP id s6BEiQmM014566; Fri, 11 Jul 2014 14:44:26 GMT (envelope-from gjb@svn.freebsd.org) Received: (from gjb@localhost) by svn.freebsd.org (8.14.8/8.14.8/Submit) id s6BEiQTR014565; Fri, 11 Jul 2014 14:44:26 GMT (envelope-from gjb@svn.freebsd.org) Message-Id: <201407111444.s6BEiQTR014565@svn.freebsd.org> From: Glen Barber Date: Fri, 11 Jul 2014 14:44:26 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r45250 - head/en_US.ISO8859-1/htdocs/news/status X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-head@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: SVN commit messages for the doc tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Jul 2014 14:44:26 -0000 Author: gjb Date: Fri Jul 11 14:44:26 2014 New Revision: 45250 URL: http://svnweb.freebsd.org/changeset/doc/45250 Log: Add status report submission from mav@. Sponsored by: The FreeBSD Foundation Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2014-04-2014-06.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2014-04-2014-06.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2014-04-2014-06.xml Fri Jul 11 13:09:38 2014 (r45249) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2014-04-2014-06.xml Fri Jul 11 14:44:26 2014 (r45250) @@ -37,7 +37,7 @@ ?>

Thanks to all the reporters for the excellent work! This - report contains 1 entry and we hope you enjoy reading it.

+ report contains 2 entries and we hope you enjoy reading it.

The deadline for submissions covering between July and September 2014 is October 7th, 2014.

@@ -121,4 +121,51 @@

+ + + RPC/NFS and CTL/iSCSI performance optimizations. + + + + + Alexander + Motin + + mav@FreeBSD.org + + + + +

The &os; RPC stack, used as base for its NFS server, took + multiple optimizations to improve its performance and SMP + scalability. Algorithmic optimizations allowed to reduce + processing overhead, while improved locking allowed it to + scale up to at least 40 processor cores without significant + lock congestion. Combined with some other kernel + optimizations that allowed to increase peak NFS request + rate by many times, reaching up to 600K requests per second + on modern hardware.

+ +

The CAM Target Layer (CTL), used as base for new kernel + iSCSI server, also took series of locking optimization, + that allowed to increase its peak request rate from ~200K + to ~600K IOPS with potential of reaching reate of 1M + request per second. That rate is sufficient to completely + saturage 2x10Gbit Ethernet links with 4KB requests. For + comparison, the port of net/istgt (user-level iSCSI + server) on the same hardware with equal configuration + shown only 100K IOPS.

+ +

There is also ongoing work on improving CTL functionality. + It was already made to support 3 of 4 VMWare VAAI storage + acceleration primitives (net/istgt supports 2), while the + goal is to reach full VAAI support during next months.

+ +

With all above, and earlier improvements in CAM, GEOM, ZFS + and number of other kernel areas coming soon FreeBSD 10.1 + may become the fastest storage release ever. ;)

+ +

These projects are sponsored by iXsystems, Inc.

+ +