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

TimeGraph: A Linux GPU Command Scheduler

Michael Larabel

Published on 2 September 2011
Written by Michael Larabel
Page 2 of 2 - 9 Comments

What TimeGraph can provide for end-users is performance improvements, for the open-source stack. See these overview slides (this related paper is also interesting) that go into detail about TimeGraph and do provide some benchmark results. Interestingly, this university project does happen to use the Phoronix Test Suite for carrying out its graphics performance tests (it's mentioned in the slides). How much faster can TimeGraph make things? The slide mentions, "It's getting competitive to the proprietary driver!" The GPU command scheduler is particularly useful if multi-tasking with workloads that target the GPU.

This work can also be beneficial in the area of GPGPU computing. In fact, you may be wondering why this open-source work is being done and why this TimeGraph discussion is taking place during the Nouveau discussion at XDC2011. The TimeGraph developers have collaborated with PathScale. Besides their new open-source compiler, PathScale is incredibly interested in GPGPU computing and doing so using an open-source stack.

PathScale is the company that previously offered free Fermi graphics cards to open-source developers, was wanting to port Nouveau to OpenSolaris, and recently has been working on their own fork of the Nouveau driver known as PSCNV. With the PSCNV driver they're primary interests are in maximizing the performance and bringing up GPGPU support. In fact, there is GPGPU support with this work. Stay tuned though for another article at an appropriate time.

TimeGraph sounds like quite an interesting project and I wish it the best of luck. I look forward to hearing more about it during the X.Org Developers' Conference. For those not in Chicago, I will be providing audio/video recordings on Phoronix and will be writing about some of the most interesting discussions as well. I'll also be live tweeting.

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. Rosewill RS-MI-01: An Ultra Low-Cost Mini-ITX Chassis
  2. D-Link DCS-2330L HD Wireless Network Camera
  3. Gigabyte AM1M-S2H
  4. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
Latest Linux Articles
  1. AMD Catalyst 14.4 Brings Few Linux Performance Improvements
  2. The Performance Of Fedora 20 Updated
  3. Clang Fights GCC On AMD's Athlon AM1 APU With Jaguar Cores
  4. Ubuntu 14.04 LTS vs. Oracle Linux vs. CentOS vs. openSUSE
Latest Linux News
  1. Fedora 21 To Get A Playground, New Features
  2. PC-BSD Is Developing Its Own Desktop Environment
  3. Valve Is Bringing VOGL To Windows & Working On Regression Tests
  4. Canonical Is Taking Over Linux 3.13 Kernel Maintenance
  5. Google Web Designer Is Now Natively Available On Linux
  6. Ubuntu 14.10 Is Codenamed The Utopic Unicorn
  7. Audacious 3.5 Lightweight Audio Player Released
  8. Steam Updated For Ubuntu 14.04 LTS, SteamOS
  9. DNF 0.5 Yum Replacement Now Supports Groups
  10. Red Hat Enterprise Linux 7.0 Is Looking Fantastic
  11. Intel Is Launching An Interesting Bay Trail NUC Next Week
  12. Another X.Org EVoC Proposed For OpenGL 4+ Tests
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  3. The Most Amazing OpenGL Tech Demo In 64kb
  4. Announcing radeontop, a tool for viewing the GPU usage
  5. HTPC-upgrade advice: AMD Richland A8-7600 or Kaveri A10-6700T ???
  6. New card. Open source drivers only.
  7. Script for Fan Speed Control
  8. Torvalds Is Unconvinced By LTO'ing A Linux Kernel