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doc/vc4: Remove reference to old shader-db

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Piglit has the traces now.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31111>
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Daniel Stone 2024-09-12 15:32:07 +01:00 • committed by Marge Bot
parent d8839b2548
commit 0f6be273f1
1 changed files with 5 additions and 12 deletions
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17
docs/drivers/vc4.rst
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@ -267,24 +267,17 @@ the counters, you can work out which ones they were at the GL level by
opening the trace up in qapitrace and using ``^-G`` to jump to that call opening the trace up in qapitrace and using ``^-G`` to jump to that call
number and ``^-L`` to look up the GL state at that call. number and ``^-L`` to look up the GL state at that call.
shader-db Trace Testing
--------- -------------
shader-db is often used as a proxy for real-world app performance when shader-db is often used as a proxy for real-world app performance when
working on the compiler in Mesa. On VC4, there is a lot of working on the compiler in Mesa. On VC4, there is a lot of
state-dependent code in the shaders (like blending or vertex attribute state-dependent code in the shaders (like blending or vertex attribute
format handling), so the typical `shader-db format handling), so the typical `shader-db
<https://gitlab.freedesktop.org/mesa/shader-db>`__ will miss important <https://gitlab.freedesktop.org/mesa/shader-db>`__ will miss important
areas for optimization. Instead, anholt wrote a `new one areas for optimization. Piglit can instead test apitraces, such as
<https://cgit.freedesktop.org/~anholt/shader-db-2/>`__ based on those captured in
apitraces. Once you have a collection of traces, starting from `traces-db <https://gitlab.freedesktop.org/gfx-ci/tracie/traces-db/>`__.
`traces-db <https://gitlab.freedesktop.org/gfx-ci/tracie/traces-db/>`__,
you can test a compiler change in this shader-db with::
./run.py > before
(cd ../mesa && make install)
./run.py > after
./report.py before after
Hardware Documentation Hardware Documentation
---------------------- ----------------------