On 05/03/18 03:43, Benedikt Schemmer wrote:
Hi all,
I thought I'd do some testing on my machine to see if there are any
problems with nir (enabled with R600_DEBUG=nir)
Hi Benedikt,
Thanks for the results. Everything looks pretty much around where I
expected it to be performance wise and seems like regressions aren't too
bad which is good.
Bioshock Infinite has the most noticeable perf regression in your
results and this seems to match the shader-db results. From what I can
tell NIR loop enrolling is a little more relaxed than GLSL IR loop
unrolling was and we end up doing a bunch of spilling in this games
shaders, it will be interesting to see if we can improve spilling or if
we need to be a little more conservative with loop unrolling.
Anyway thanks again for doing some testing,
Tim
Tested on Ubuntu 17.10 with mesa git of today
(oibaf for 32 bit, mine with LLVM5.0 on 64 bit because I cant figure out
how to build 32bit drivers on ubuntu :( )
Xeon 1260l and 8GB DDR3-10600 with RX460 4GB
works means no obvious visual artifacts etc.
I didn't have time to do detailed benchmarking.
---
Alien Isolation - works
Bioshock Infinite - works, nonir Overall avg 45.58, min 9.81, max
104.49; nir avg 31.47 min 8.35 max 94.19
CAT Interstellar (UE4) - works
Dead Island Definitive - works
Dead Island Riptide Definitive - works
Deus Ex: Mankind Divided - works, nonir low 8.3 avg 24.2 high 37.6; nir
low 1 avg 22.8 high 35.8
but shader generation crashes two times: once around half the loader bar
with complete system freeze and then again around the end but only
exiting the applicationand this is reproducible by deleting the shader
cache
Mad Max[vulcan beta] - works
benchmark 1
nonir 43/45/47
nir 10/46/50
benchmark 2
nonir 14/37/41
nir 24/36/40
benchmark 3
nonir 8/43/61
nir 5/41/61
benchmark 4
nonir 9/49/78
nir 4/47/74
Tomb Raider - TressFX doesn't work: hair flickering and is riddled with
small green block artifacts, smoothing is missing; speed is the same
28.6 ish
Hitman GO (Unity) - works
Unity of Command (PyGame, SDL) - works
Talos Principle Benchmark nir 64.7 nonir 67
I have more games if there are any usual suspects that are likely to
cause problems.
Cheers,
Benedikt
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