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. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  2. Intel 120GB 530 Series SSD Linux Performance
  3. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
  4. AMD's Windows Catalyst Driver Remains Largely Faster Than Linux Drivers
Latest Linux Articles
  1. Mesa Git Yields Performance Improvements For Newer AMD GPUs
  2. Apple OS X 10.10 vs. Ubuntu 14.10 Performance
  3. Mesa 10.5-devel Brings Some Intel Haswell HD Graphics Changes Over Mesa 10.3
  4. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
Latest Linux News
  1. IMP Launches As Another Open-Source Computer Attempt
  2. Git 2.2.0 Released With 550+ Changes
  3. GNOME 3.15.2 Released
  4. Quantum OS Aims For A Linux Desktop With QML, Wayland & Material Design
  5. New Open-Source, Linux Benchmarks To Feast On
  6. FreeBSD Plans For The Next Ten Years
  7. Qt 5.4 Planned For Release On 9 December
  8. Meizu's Ubuntu Phone Not Expected Until Early Next Year
  9. DragonFlyBSD 4.0 Drops i386 Support, Improves Graphics
  10. Expensive "Free/Libre Software Laptop" Uses A NVIDIA GPU
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Hurrican SDL Port
  3. Roadmap to Catalyst 14.10 ?
  4. how to configure module phoromatic ?
  5. PulseAudio 6.0 Is Coming & Other Linux Audio Plans For The Future
  6. Debian Developer Resigns From The Systemd Maintainership Team
  7. Cant get working Kaveri APU - A10-7850k
  8. Script for Fan Speed Control