1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Mir Works On Screencasting, Parallelized Page Flipping

Ubuntu

Published on 14 February 2014 03:48 PM EST
Written by Michael Larabel in Ubuntu
66 Comments

While Mir is not going to premiere in Ubuntu 14.04 LTS and might not even be ready for Ubuntu 14.10, upstream development of this next-generation display server for Ubuntu to compete with Wayland is still being developed at full-speed.

Last week I wrote about SDL2 landing Mir back-end support and recently was also Mir's work towards screencasting support. The latest additions to note with Mir's development includes:

- A Mir screencasting utility was added. The screencast utility for Mir is very simple and just allows specifying the Mir server socket to use and an output ID; nothing more than that right now. The screencast code now also supports rendering to an off-screen buffer.

- The client platform for Mir is now dynamically loaded.

- A big change that landed this week was the parallelization of page-flipping with the rendering of the next frame, per Revision 1380. The commit explains, "Blocking rendering of the next frame until your page flip has finished is pretty harmless on a single-headed system. However, in the case of cloned outputs, waiting for multiple flips can take up to the whole frame time (as monitors could easily be 16ms out of phase). This left little or no time for rendering, resulting in dropped frames (stuttering) with cloned outputs. The solution is to wait for the page flips in parallel to rendering the next frame." So the big win from this work is better Mir multi-monitor support.

When do you think Mir will finally be ready for day-to-day use on the Ubuntu Linux desktop to replace the X.Org Server? Or do you think they will ultimately abandon it in favor of Wayland? Let us know your thoughts by commenting in our forums.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Even With Re-Clocking, Nouveau Remains Behind NVIDIA's Proprietary Linux Driver
  2. The Power Consumption & Efficiency Of Open-Source GPU Drivers
  3. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  4. Intel Pentium G3258 On Linux
Latest Linux Articles
  1. AMD Catalyst 14.6 Does Slightly Better With APITest OpenGL Tests
  2. Updated Source Engine Benchmarks On The Latest AMD/NVIDIA Linux Drivers
  3. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  4. KVM Benchmarks On Ubuntu 14.10
Latest Linux News
  1. Belkin's WRT54G Router Successor Is Crap On The Software Front So Far
  2. QEMU 2.1 Officially Released
  3. XBMC Is Being Renamed To "Kodi"
  4. SteamOS Beta 126 Better Handles XBMC
  5. Ubuntu 14.10 Alpha 2 Released
  6. KDE 4.14 Release Candidate Ships
  7. Drivers & Drama Dominated Linux Talk In July
  8. Fedora Assembles A Security Team
  9. AMD Launches The A10-7800, The 65 Watt Kaveri
  10. Builder: A New Development IDE Being Built For GNOME
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
  3. Linus Torvalds On GCC 4.9: Pure & Utter Crap
  4. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  5. Debian + radeonsi
  6. AMD Publishes Open-Source Linux HSA Kernel Driver
  7. Open-source drivers on ATI R7 260X
  8. AMD Athlon 5350 APU On Linux