[Intel-gfx] [PATCH] intel-gpu-tools: Version information

[Daniel Vetter]

On Sat, Dec 7, 2013 at 5:35 AM, Ben Widawsky
<benjamin.widawsky at intel.com> wrote:
> Provide two arguments version, and verbose, which allow printing from an
> arbitrary igt test. It will show system information (from build time,
> not runtime), as well as the git SHA being used.
>
> This will help reduce errors when people try to reproduce problems.
>
> As an example if I want to verify someone is running the correct version
> of a test, I could ask them to do:
> bwidawsk at ironside ~/intel-gfx/intel-gpu-tools (master)$ sudo ./tests/gem_exec_nop --verbose
> gem_exec_nop-git-3c5423b (Linux ironside 3.12.0-1-ARCH #1 SMP PREEMPT
> Wed Nov 6 09:06:27 CET 2013 x86_64 GNU/Linux)
> Time to exec x 1:                35.000µs (ring=render)
> Time to exec x 2:                28.000µs (ring=render)
> Time to exec x 4:                20.000µs (ring=render)
> Time to exec x 8:                14.625µs (ring=render)
> Time to exec x 16:               11.188µs (ring=render)
> Time to exec x 32:               11.125µs (ring=render)
> Time to exec x 64:               10.328µs (ring=render)
> Time to exec x 128:              10.172µs (ring=render)
> Time to exec x 256:              10.234µs (ring=render)
> Time to exec x 512:              10.232µs (ring=render)
> Time to exec x 1024:             10.121µs (ring=render)
> Time to exec x 2048:             10.151µs (ring=render)
> Time to exec x 4096:             11.474µs (ring=render)
> Time to exec x 8192:              9.432µs (ring=render)
> Time to exec x 16384:             6.003µs (ring=render)
> Time to exec x 32768:             5.029µs (ring=render)
> Time to exec x 65536:             4.206µs (ring=render)
> Time to exec x 131072:            3.630µs (ring=render)
> Subtest render: SUCCESS
>
> --verbose is provided for completeness, but doesn't seem too useful at
> the moement.
>
> bwidawsk at ironside ~/intel-gfx/intel-gpu-tools (master)$ sudo ./tests/gem_exec_nop --version
> gem_exec_nop-git-3c5423b (Linux ironside 3.12.0-1-ARCH #1 SMP PREEMPT
> Wed Nov 6 09:06:27 CET 2013 x86_64 GNU/Linux)
>
> I've put version.h in the root directory so that any subdir can access
> it. I've added the tests usage since it's immediately useful, and done
> easily via Daniels igt infrastructure work.
>
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>


Yeah, this is definitely very useful. But I'd just print it by default
so that we don't need to ask for this information. Of course we need
to be careful to not print it when listing subtest. Also:
- We don't have any init stuff for simple testcases without subtests,
we need to roll out a bit of infrastructure to make that happen.
- Shell script tests might also benefit from this.
- uname information needs to be gathered at runtime, since QA has a
special build server.

If you don't mind I'll apply this and then frob it some more.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch