An Open-Source Version Of NVIDIA's NVPerfKit Continues Coming
Written by Michael Larabel in Nouveau on 20 June 2014 at 04:47 PM EDT. Add A Comment
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As part of the this year's Google Summer of Code, a returning Nouveau developer is working on open-source, reverse-engineered performance counters support for NVIDIA graphics hardware that's implemented within the Nouveau driver stack and exposed to user-space in a similar manner to NVIDIA's NvPerfKit.

Since last year Samuel Pitoiset has been working on reverse-engineering NVIDIA's performance counters found on their modern graphics processors. Samuel is ultimately working towards an open-source version of NVKitPerf-like functionality to aid developers in debugging and optimizing their software on NVIDIA GPUs.

With this year's GSoC, Samuel is mostly working to expose the performance counters to user-space now that he has a understanding of how the hardware counters function. Samuel has written a new blog post to share the latest work he's accomplished this summer. His latest blog post covers how the performance counters (PCOUNTER) work, how some events are handled by NVPerfKit on Windows, etc.

Pitoiset ended the post with, "I have a first prototype which works quite well, I’ll submit it the next week." His post in full about this work can be read on WordPress.
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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 Twitter or contacted via MichaelLarabel.com.

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