Desktop and RDSH server sizing and optimization. Added guidance on the benefits of HTML5 multimedia redirection. HEVC will not work with ESXi CPU encoding alone. Screen 0/1 @ Resolution: 3840 x 2160. Computer Configuration -> Policies -> Administrative . VNCRegionEncoder_Create: region encoder h264 4:2:0. The 4:2:0 sample rate can result in color washout as well as text or image fuzziness when using some applications (for example, CAD) or some color combinations. Screen 0/1 @ Resolution: 3840 x 2160. Note: At this point, the VMware Blast service on the agent side (Horizon Agent on the virtual desktop or RDSH server) proxies the incoming TCP connection. The Horizon Performance Tracker does not currently indicate HCA mode when NVIDIA encoding is used. If you have a GPU to offload H. 264 and the available bandwidth, you can change this setting to reduce the . The following table provides guidance on which codecs to use for various types of applications. Yes. Settings made directly in the registry are dynamic and take effect immediately, whereas those requiring a client setting will take effect only after the client disconnects and reconnects to a live session. Use Network QoS (Quality of Service). EUC Solutions Exchange on VMware CODE is the best place to find and share snippets. Yes: Select Allow High Efficiency Video Coding and Allow High Dynamic Range Decoding (HDR). A WebSocket connection is made from the client to the Blast Secure Gateway (on the Unified Access Gateway) on TCP port 8443, and then from the Blast Secure Gateway to the virtual desktop or RDSH server on TCP port 22443. For more information, see, Worksheet for Creating an Automated Instant-Clone Farm, Setting Up Published Desktops and Applications in Horizon, To configure the remote display protocol at the global entitlement level, see, Administering Cloud Pod Architecture in Horizon. Yes: Select Allow H.264 Decoding, and select Allow High Color Accuracy. If UDP is enabled on the client, the Unified Access Gateway, and the agent (default), the client attempts to make a UDP connection to the agent via the Unified Access Gateway. The VMware Blast service ( VMBlastS.exe) manages user sessions, proxies incoming TCP connections, and prepares the Blast Worker process. Yes: Deselect all codecs and codec options (uncheck: H.264, Allow High Color Accuracy, and Allow High Efficiency Video Coding). SwitchEnc: 1 Screen 4 switching to BlastCodec encoder. UdpEnabled Enables or turns off support for the UDP transport protocol. If possible, prevent or encourage only limited use of bandwidth-intensive services such as file transfer. In addition to leveraging all of the optimizations described in the preceding section for still images, 3D design, and font quality, try the following suggestions: VMware Horizon and Blast Extreme support not just virtual desktops, but physical ones too. H.264, the most commonly used codec in the world, was designed specifically to support entertainment content and is known for its use in encoding Blu-ray movies. The connection continues from the Unified Access Gateway to UDP port 22443 on the agent. A certificate thumbprint is a cryptographic hash of a certificate. By default, the traffic is then side-channeled on the Blast Extreme channel to the agent. If multimedia redirection (MMR) is enabled, this traffic uses TCP port 9427 between the client and agent. TCP 443 is used between the client and the Unified Access Gateway. The Connection Server returns the connection information for the virtual desktop or RDSH server to the client. Although RAM is rarely the bottleneck, monitor RAM to ensure it is not being over utilized by applications. Moving to the cloud? Now that you have learned about the benefits and features of Blast Extreme and have seen how easy it is to configure in your Horizon environment, we hope that you will take advantage of this adaptive and purpose-built display protocol. (maximum display bandwidth) to the maximum desired bandwidth utilization per user. If you use a Unified Access Gateway virtual appliance for connections from outside the corporate network, by default the connection uses TCP port 8443 and optionally UDP port 8443. But it can also be used to support graphically intensive applications by leveraging the desktops physical GPU. Windows desktop and server operating systems are not designed for efficient virtualization. manages user sessions, proxies incoming TCP connections, and prepares the Blast Worker process. ) Use Group Policy to prohibit use of desktop wallpaper. Become a desktop virtualization hero with our curated activity path. EncoderH264Enabled Enables or turns off support for H.264. Yes: Select Allow H.264 Decoding. Internal testing resulted In a 12 percent bandwidth savings by doubling the size of both caches to 512 MB. As its name implies, the JPG/PNG codec leverages two image formats, JPG and PNG, to encode and decode display content. A consistent user experience across devices and locations while keeping corporate data compliant and securely stored in the data center. Offloading the display protocol encoding is enabled by default but can also be turned off if the GPUs must be dedicated to supporting other tasks. There are several ways that these settings can be applied. Learn how to architect the right security solutions for your business needs. Screen 0/1 @ Resolution: 3840 x 2160. If users experience any of these issues, HCA can be enabled to improve quality while preserving H.264s multimedia efficiency. In the client VMware Blast settings, Allow High Efficiency Video Decoding (HEVC) and Allow High Dynamic Range Decoding (HDR) needs to be turned on. This capability not only provides a better user experience but also reduces the resources required for display protocol encoding overall. However, it does increase client CPU utilization by up to 200 percent for the duration of the redirection (from an average of 8 to 24 percent on a sample test system). Value: 1. Be certain to test key applications and multimedia content before widespread deployment. There is two files in this directory C:\ProgramData\Vmware\Vmware Blast: blast-service.log. EncoderNvidiaH264Enabled Enables or turns off support for offloading H.264 encoding to NVIDIA GPUs installed in the ESXi hosts. The fewer packets the display protocol has to transfer across the network, the fewer that will be affected by high latency. Although this results in a similar reduction in the network bandwidth required, it uses substantially more CPU processing power to encode and decode. 2. General Settings The following table describes the general settings in the Horizon Client Configuration ADMX template file. Do not starve the virtual desktops and RDSH servers of resources. This ensures that all systems deployed from these templates are configured properly for Blast Extreme. The connection travels from the client to a Unified Access Gateway virtual appliance on TCP port 443, and then from the Unified Access Gateway to the Connection Server on TCP port 443. The table in each section outlines the settings configured by the application template. Workspace ONE Access, formerly known as Identity Manager, is a powerful tool. Same applications as for the Blast Codec and the H.264 codec. There is a unified image quality configuration setting that controls the remoted display image quality level across all Blast encoders. HEVC requires NVIDIA GPUs to be installed in the ESXi hosts to offload encoding. The Horizon Clients can use either IP version 4 or 6. VMware Blast Extreme Group Policy Settings The policy files required are vdm_blast.admx and vdm_blast.adml. For this reason, HEVC in Blast Extreme requires that the ESXi hosts supporting the virtual desktops and RDSH servers have NVIDIA Tesla or newer GPUs to offload its encoding. The display protocol is transferring 6 frames per second, and estimates of network bandwidth and latency are provided. Deploy virtual desktops and RDSH servers on fast virtual disks (all-flash or flash-optimized). to identify the best quality at an acceptable level of bandwidth utilization. Figure 2: Internal Connection from Client to Agent Using Blast Extreme. Horizon Client version 5.2 only also requires a special configuration file on the client (see the note following this table). The connection workflow descriptions in this section also include information about the configurable components of Blast Extreme and the various Blast Extreme services and processes that are built into the virtual desktop agent. Running traditionally full-screen applications in a window instead of full-screen can also slash bandwidth utilization. Monitors with higher screen resolutions, and use cases with multiple monitors, require more system resources, especially CPU and network bandwidth. Using articles, videos and labs, this activity path provides the fastest way to learn Workspace ONE! Be certain to test any QoS configuration extensively to ensure not just proper performance for Blast Extreme, but that the configuration does not negatively impair other applications and services that the network must also support. In this mode, under typical application conditions, Blast Extreme uses the Blast Codec or JPG/PNG codec, both of which are optimized for text and still image quality. The client-side settings work in conjunction with the agent-side settings, which administrators can configure, as described in How to Configure Blast Extreme, in the VMware Blast Extreme Optimization Guide. Note: Different types of client devices support different features of Blast Extreme. Testing has shown this enables smooth 4K video playback without need for hardware GPUs. If desired, the traffic between the Unified Access Gateway and Horizon Agent can be configured to use a separate port (TCP 9427). Figure 4: Horizon Performance Tracker Reports Details of a Blast Extreme Session, NVIDIA Encoded H.264 with High Color Accuracy. In testing with a single 4K display, viewing a typical YouTube video in standard windowed mode used 53 percent less bandwidth and 23 percent less virtual desktop CPU than watching the same video full-screen. Applications that require higher graphical quality with improved color range and contrast, such as digital photography. This is great for users that use their own devices with all kinds of displays and DPI settings and such. Blast Extreme can also use the certificate thumbprint of the Blast Secure Gateway or virtual desktop. Use UDP unless the traffic must pass through a UDP-hostile network device such as a TCP-based SSL VPN. Let us help you become the hero of your department. On the server side, H.264 encoding can be offloaded to NVIDIA Tesla GPUs, freeing the costly CPUs in. But when rapidly changing screen content such as streaming video is detected, Blast Extreme automatically switches to multimedia optimized H.264. VMware Horizon Administration guide in the VMware Horizon Documentation, Configuring Remote Desktop Features in Horizon guide in the VMware Horizon Documentation, Deep Dive into VMware Horizon Blast Extreme Adaptive Transport blog post, NVIDIA vGPU Deployment Guide for VMware Horizon 7.5 on VMware vSphere 6.7, VMware Horizon Blast Extreme Acceleration with NVIDIA GRID blog post, 3D Graphics like never before with VMware Horizon and NVIDIA T4 GPUs blog post.
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