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. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. RadeonSI Gallium3D vs. Catalyst At 4K UHD On Linux
  2. MSAA RadeonSI Gallium3D Performance Preview
  3. Intel Core i7 5960X CPU Core Scaling Under Linux
  4. AMD RadeonSI Gallium3D Performance For 4K Linux Gaming
Latest Linux News
  1. Eclipse IDE Starts Firing Up On Wayland's Weston
  2. OpenSUSE Announcement On SUSE's Recent Merger
  3. Valve Begins Publicly Tracking AMD Catalyst Linux Issues
  4. Digia Qt Spinoff Is Called "The Qt Company"
  5. GNOME 3.14 Makes More Progress In Running Natively On Wayland
  6. Minix 3.3 Released With Cortex-A8 ARM Support, NetBSD Userland Compatibility
  7. More Intel DRM Changes Queued For Linux 3.18, Including Old i830M Fixes
  8. New Code Starts Lining Up For X.Org Server 1.17
  9. Rust Developers Planning For The Rust 1.0 Language
  10. RPM 4.12 Brings New Switches, New Rpm2Archive Utility
Latest Forum Discussions
  1. Best Radeon for a Power Mac G5?
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. New Group Calls For Boycotting Systemd
  4. support for first generation UVD blocks (RV6xx, RS780, RS880 and RV790)
  5. Nvidia joins the ranks of Apple and Microsoft
  6. Hd 6850
  7. nv and xorg.conf under Debian PPC
  8. X.Org Is Looking For Some Female Help