[Piglit] [Announce] Swineherd: A piglit test runner written in C++

[Dylan Baker]

Quoting Dylan Baker (2018-12-19 13:56:18)
> Hi list,
> 
> I've been off and on working on a new test runner for piglit written in C++14.
> Its been sitting on my gitlab publicly for a bit, and I've shared it with some
> people at Intel, but I thought I'd send out an announcement and see if I could
> get some more interest. It's called swineherd, and it lives here:
> 
> https://gitlab.freedesktop.org/dbaker/swineherd
> 
> Swineherd currently is pretty limited, it still needs a lot of work to be a
> replacement for the piglit runner, but it can run tests and get output, and does
> so much faster than the python runner.
> 
> It currently can:
>  - read the gz compressed profile xml that piglit produces
>  - run tests
>  - get the output of tests
>  - write an uncompressed json file that piglit's summary tools can consume
>  - only builds and runs on Linux
> 
> I have a few opened issues on the gitlab tracker for it, that I may or may not
> get around to doing all of.
> 
> I currently don't plan this to support every single option piglit does, because
> my main concern with swineherd is performance, I want this runner to be as fast
> as possible. Among the things I don't want to implement:
> 
>  - dmesg support. This forces serial test running and pauses between tests.
>  - reboot on failure support
>  - other things I haven't mentioned
> 
> I'd be happy to take MRs for this, if you'd like to add things or fix things :)
> 
> I'm also opened to merging this into piglit proper, once I feel like it's pretty
> stable and has enough features to be generally useful.
> 
> Dylan
> 

Since I sent this out I added support for include and exclude filters (the -t
and -x options in piglit), and support for gzip compression of output. I did
some tests and depending on the exact set of tests its somewhere between 20-50%
faster on my 2 core 4 thread machine.

Dylan
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