From owner-svn-doc-all@freebsd.org Fri Jan 15 03:45:10 2016 Return-Path: Delivered-To: svn-doc-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9FCBEA8347C; Fri, 15 Jan 2016 03:45:10 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::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 606BD1AF6; Fri, 15 Jan 2016 03:45:10 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u0F3j9SP065477; Fri, 15 Jan 2016 03:45:09 GMT (envelope-from bjk@FreeBSD.org) Received: (from bjk@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u0F3j9CF065476; Fri, 15 Jan 2016 03:45:09 GMT (envelope-from bjk@FreeBSD.org) Message-Id: <201601150345.u0F3j9CF065476@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: bjk set sender to bjk@FreeBSD.org using -f From: Benjamin Kaduk Date: Fri, 15 Jan 2016 03:45:09 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r48019 - 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-all@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "SVN commit messages for the entire doc trees \(except for " user" , " projects" , and " translations" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jan 2016 03:45:10 -0000 Author: bjk Date: Fri Jan 15 03:45:09 2016 New Revision: 48019 URL: https://svnweb.freebsd.org/changeset/doc/48019 Log: Add FreeBSD Integration Services entry from Dexuan Cui Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Fri Jan 15 01:59:38 2016 (r48018) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Fri Jan 15 03:45:09 2016 (r48019) @@ -2206,4 +2206,134 @@ + + + &os; Integration Services (BIS) + + + + + Dexuan + Cui + + decui@microsoft.com + + + + + Hongjiang + Zhang + + honzhan@microsoft.com + + + + + &os; Virtual Machines on Microsoft Hyper-V + Linux and &os; Virtual Machines on Hyper-V + + + +

When &os; virtual machines (VMs) run on Hyper-V, in order + to get the best network and storage performance and make full use + of all the benefits that Hyper-V provides, it is recommended to + use Hyper-V synthetic devices. The collection of drivers that are + required to run Hyper-V synthetic devices in &os; are known as + &os; Integration Services (BIS). Some of the BIS drivers (like + network and storage drivers) have existed in &os; 9.x and 10.x for + years, but there are still some performance and stability issues + and bugs. Additionally, compared with Windows and Linux VMs, the + current BIS lacks some important features, such as the virtual + Receive Side Scaling (vRSS) support in the Hyper-V network driver + and the support for UEFI VM (boot from UEFI), among others.

+ +

We are now working more on the issues and performance + tuning to make &os; VM run better on Hyper-V and the Hyper-V based + cloud platform Azure.

+ +

Our work during 2015Q4 is documented below:

+ +
    +
  • Optimizing the VMBus driver and Hyper-V network driver + for performance: +
      +
    • Sent out patches to enable INTR_MPSAFE for + the interrupt handling thread, speed up + relid-to-channel lookup in the thread by map table, + and optimize the VMBus ringbuffer writable + notification to the host.
      • + +
    • Developing a patch to enable the virtual Receive + Side Scaling (vRSS) for Hyper-V network device driver. + This will greatly improve the network performance for + SMP virtual machine (VM).
      • + +
    • Sent out a patch to enable the Hyper-V timer, which + will improve the accuracy of timekeeping when &os; VMs + run on Hyper-V.
      • +
    +
    • + +
  • Fixing bugs and cleaning up the code: +
      +
    • Fixed a bug in checksum offloading (PR 203630 + — [Hyper-V] [nat] [tcp] 10.2 NAT bug in TCP stack + or hyperv netsvc driver) in the Hyper-V network driver, + making &os; VM based NAT gateways work more reliably.
      • + +
    • Fixed a serialization issue in the initialization of + VMBus devices, fixing PR 205156 ([Hyper-V] NICs' (hn0, + hn1) MAC addresses can appear in an uncertain way across + reboot).
      • + +
    • Fixed a KVP (Key-Value Pair) issue (retrieving a + key's value can hang for an uncertain period of + time).
      • + +
    • Added ioctl support for SIOCGIFMEDIA for the Hyper-V + network driver, fixing PR 187006 ([Hyper-V] dynamic + address (DHCP) obtaining doesn't work on HYPER-V OS + 2012 R2).
      • + +
    • Sent out patches to add an interrupt counter for + Hyper-V VMBus interrupts (so the user can easily get + the statistical information about VMBus interrupts), + and fix the KVP daemon's poll timeout (so the daemon + will avoid unnecessary polling every 100 + milliseconds.
      • + +
    • Identified a TSC calibration issue: the i8254 PIT + timer emulation of Hyper-V is not fully reliable, so + the Hyper-V time counter should be used to calibrate + the TSC. A patch was drafted. With the patch, it looks + the warning kernel message (e.g., "calcru: runtime + went backwards from 46204978 usec to 23362331 usec for + pid 0 (kernel)") will go away, and the time-based + tracing of Dtrace will be more accurate.
      • +
    +
    • + +
  • We plan to add support for UEFI VMs (a.k.a., Hyper-V + Generation-2 VMs). Currently some issues and to-do items were + identified: e.g., we cannot use the i8254 PIT to calibrate the + TSC because the i8254 PIT does not exist in a UEFI VM, and we + need to add support for the Hyper-V synthetic + keyboard/mouse/framebuffer device.
    • + +
  • We are working on a disk detection issue: when a &os; VM + runs on a Windows Server 2016 Technical Preview host, the VM + will detect 16 disks whereas only 1 disk is configured for the + VM. Due to this issue, VMs running on these hosts can fail to + boot. A workaround patch was made and we are trying to make a + formal fix.
    • + +
  • We are tidying up some internal BIS test cases and plan + to publish them on github.
    • +
+ + + + Microsoft + +