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 Benchmarking Platform
Phoromatic Test Orchestration

Mir Got An Important Rendering Performance Fix

Ubuntu

Published on 20 October 2013 05:18 AM EDT
Written by Michael Larabel in Ubuntu
28 Comments

The latest revision to Mir features an important performance fix.

In the latest revision to Mir at the time of writing, rev 1102, there is an important performance fix. Surfaces that are fully hidden by other surfaces (windows) are no longer being rendered with this fix. The original issue and bug report was brought up when finding out for Ubuntu Touch that when launching the clock app -- which re-renders the screen every second to show the new time -- would still be drawing in the background even when the application was minimized or covered up by another app.

On mobile devices in particular -- when commonly just showing one application at a time -- this can cause some serious performance overhead and decrease in battery life by continuing to render hidden application surfaces when they aren't even being scanned out to the screen. Now, if the surface is completely hidden, Mir won't bother doing this useless rendering.

Revision 1102 also landed other changes as pointed out by the Launchpad Bazaar history (as of late it seems the developers have been squeezing multiple changes into single commits rather than cleanly separating out the changes in Bzr). The commit just happened on Thursday so will likely just be pushed to Ubuntu Touch as a stable release update.

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 News
  1. HiSense Chromebook Benchmarks When Running Ubuntu Linux
  2. Mandriva Linux Was Allegedly Brought Down By Employee Lawsuits
  3. GNOME 3.17.2 Is Released As The Latest Look Towards GNOME 3.18
  4. Phoronix Turns 11 Years Old Next Week: How Should We Celebrate?
  5. Ubuntu Community Council Reaffirms Its Decision Against Kubuntu's Leader
  6. Future Plans For Changing Fedora's Installer
  7. Confusion Mounts Over Wayland's Actual License
  8. GNOME's Mutter Now Supports Drag-n-Drop To/From Wayland & X11
  9. Wine 1.7.44 Works On More 64-bit ARM Support
  10. Phoronix Test Suite 5.8 Milestone 5 Brings Near Final "Belev" Experience
Latest Articles & Reviews
  1. Btrfs RAID 0/1/5/6/10 Five-Disk Benchmarks On Linux 4.1
  2. Opening The Gates To Our Daily Open-Source Linux Benchmark Results
  3. The Latest Features For Linux Performance Management + Benchmark Monitoring
  4. Noctua NH-U12DX i4 + NF-F12
Most Viewed News This Week
  1. NVIDIA's Proprietary Driver Is Moving Closer With Kernel Mode-Setting
  2. Features Added To Mesa 10.6 For Open-Source GPU Drivers
  3. Ubuntu's LXD vs. KVM For The Linux Cloud
  4. Friction Building Around An Ubuntu Community Council Decision
  5. The Latest Linux Kernel Git Code Fixes The EXT4 RAID0 Corruption Problem
  6. The CompuLab Fitlet Is A Neat Little Linux PC With AMD SoC
  7. Linux 4.1-rc5 Kernel Released
  8. Russia's Baikal Chips End Up Going For A MIPS CPU