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

Reverse-Engineering Could Yield A Linux NV "PerfKit"

Nouveau

Published on 07 October 2013 05:39 PM EDT
Written by Michael Larabel in Nouveau
11 Comments

Samuel Pitoiset of the Nouveau driver project, and the student who was participating in this year's Google Summer of Code, has made great progress in understanding and documenting NVIDIA's "NV50" GPUs performance counters.

Pitoiset already did basic Nouveau NVC0 compute support for reading NVC0/Fermi performance counters that require a hard-coded compute kernel. He's also committed other performance counter code to the Nouveau Gallium3D drivers this summer.

While GSoC is now over, Samuel has been able to figure out most of the NV50 counters by using his own implementation of the libpciaccess PCI library on Windows 7 to read "pcounter" configurations for the NVPerfKit and GDebugger utilities. He's been able to document most of the generated signals and has published his findings to GitHub. Samuel shared this good news today via his blog.

After completing the documentation process, it would be theoretically possible to develop a NVPerfSDK/PerfKit for Linux. NVIDIA offers "PerfKit" to Windows developers as an advanced software suite for measuring the performance of -- and debugging -- OpenGL and Direct3D applications. The closed-source PerfKit reads these performance counters from the driver to understand bottlenecks and other issues in the game/application under test.

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. GNOME 3.15.2 Released
  2. Quantum OS Aims For A Linux Desktop With QML, Wayland & Material Design
  3. New Open-Source, Linux Benchmarks To Feast On
  4. FreeBSD Plans For The Next Ten Years
  5. Qt 5.4 Planned For Release On 9 December
  6. Meizu's Ubuntu Phone Not Expected Until Early Next Year
  7. DragonFlyBSD 4.0 Drops i386 Support, Improves Graphics
  8. Expensive "Free/Libre Software Laptop" Uses A NVIDIA GPU
  9. QEMU 2.2-rc3 Released, Final Release Pushed Back By Couple Days
  10. 64-bit ARM FreeBSD Support Is Taking Shape
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