It is possible that the llvmpipe driver is turned off by the installation of NVIDIA proprietary drivers. Since the rendering is done in software in NoMachine virtual display, good performance requires:īoth requirements are accomplished by the Mesa llvmpipe driver. GNOME 3 uses OpenGL for desktop composition. Using a less demanding desktop environment (like GNOME-classic or a lightweight desktop such as Mate or Xfce) can help. Although llvmpipe runs faster than other software renderers, it is possible that the CPU is not powerful enough to run it with good performance. An optimized version of software rasterizer is shipped by recent GNU/Linux distribution: it is called llvmpipe as uses LLVM to do runtime code generation. The software component implementing the rendering is called software rasterizer. Such operations could be resource-demanding, especially in the case of 3D desktop graphics effects, and make the user interface look slow. This means that rendering tasks are accomplished by CPU and not offloaded onto GPU. In NoMachine virtual desktops, OpenGL rendering is done by software components. SummaryĬase 1: CPU power insufficient for running software renderingĬase 2: Software renderer is not optimized The following situations have been encountered on RHEL 7 and CentOS 7. ġ) Verify CPU and memory usage of the nxnode.bin process running on the server host when the NoMachine virtual desktop is insufficiently responsive.Īnd look at the corresponding case(s) below for a possible solution. #NOMACHINE SERVER VIRTUAL DESKTOP HOW TO#To know more about VirtualGL support in NoMachine and how to enable it, please read here. It applies only when VirtualGL is not in use. This article provides some instructions to solve most common cases. In some cases, users may experience slowness when running GNOME or KDE virtual desktops. 6.4.x or later running on Red Hat Enterprise Linux (or CentOS) 7.5 or later please use this article:
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