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

Intel's Mesa Driver Gets A Small Performance Boost

Intel

Published on 28 January 2013 07:42 PM EST
Written by Michael Larabel in Intel
Comment On This Article

Another patch landed in mainline Mesa today that's capable of providing a small performance boost for some OpenGL workloads with Intel's open-source Linux graphics driver.

Eric Anholt worked on today's performance-enhancing patch, entitled intel: Use a CPU map of the batch on LLC-sharing architectures. The commit description explains, "Before, we were keeping a CPU-only buffer to accumulate the batchbuffer in, which was an improvement over mapping the batch through the GTT directly (since any readback or other failure to stream through write combining correctly would hurt). However, on LLC-sharing architectures we can do better by mapping the batch directly, which reduces the cache footprint of the application since we no longer have this extra copy of a batchbuffer around."

Eric went on to note that this patch, which changes less than three dozen lines of code, improves the performance of GLBenchmark, Lightsmark, and Cairo-GL by a couple percent when running on Ivy Bridge hardware. However, overall this won't affect Intel's Mesa OpenGL performance too very much.

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 Articles & Reviews
  1. AMD FX-8320E Performance On Linux
  2. Linux Compiler Benchmarks Of LLVM Clang 3.5 vs. LLVM Clang 3.6-rc1
  3. Intel Broadwell HD Graphics 5500: Windows 8.1 vs. Linux
  4. Linux Benchmarks Of NVIDIA's Early 2015 GeForce Line-Up
  5. NVIDIA GeForce GTX 960: A Great $200 GPU For Linux Gamers
  6. Disk Encryption Tests On Fedora 21
Latest Linux News
  1. Intel Broadwell On Linux Has Working OpenCL 1.2, VP8 Video Acceleration
  2. GParted 0.21 Brings ReFS Detection, EXT4 For RHEL5, Reiser4 For Linux 3.x
  3. Wine Staging Update Has Better CUDA Support, Driver Testing Framework
  4. Nouveau In Linux 3.20 Will Have A Lot Of Code Cleaning
  5. Compare Your Linux System To The i7-5600U Broadwell X1 Carbon ThinkPad
  6. Debian 8.0 "Jessie" Installer RC1 Released
  7. Chromebook "Rush" With 64-bit Tegra SoC Support Lands In Coreboot
  8. 2015 X.Org Elections Get Underway For Board Members, SPI Merger
  9. Linux 3.19-rc6 Kernel Released: LInux 3.19 Final In Two Weeks
  10. Ubuntu's Mir Gains Server-Side Platform Probing
Most Viewed News This Week
  1. Windows 10 To Be A Free Upgrade: What Linux Users Need To Know
  2. Google Admin Encourages Trying Btrfs, Not ZFS On Linux
  3. TraceFS: The Newest Linux File-System
  4. My Initial Intel Broadwell Linux Experience With The ThinkPad X1 Carbon
  5. Keith Packard Leaves Intel's Linux Graphics Work
  6. Interstellar Marines On Linux With Catalyst: Bull S*#@
  7. NetworkManager Now Supports WiFi Power Savings
  8. Intel's Open-Source Graphics Team Poaches A Top Nouveau Driver Developer