This improves performance for the game "Grounded", on a AMD Radeon RX 6700 XT,
with radv from Mesa 22.3.6. Testing was done with the "cb_access_map_w" option
enabled, which also improves performance with the game by itself.
From my testing, it's possible to raise the threshold from 2 ms up to 5 ms or
so, before the driver or GPU seems to reclock back to the lower power level.
However, this measurement is questionable for several reasons. It seems to vary
depending on the scene being rendered, and of course this will be specific to
the game and driver and GPU in question anyway. The game also has a weird
approach to vsync that seems to involve it presenting stale frames (and hence
artificially inflating the FPS), which I'm not fully sure I accounted for while
measuring. And of course, it's hard to be sure that 5 ms is actually the
threshold for how long the driver will go before powering down the GPU. In any
case, it seems better to err on the side of submitting more often, to make sure
the fix affects more drivers.
While submission isn't cheap, it seems to me that submitting every 2 ms is
unlikely to cause a bottleneck [consider that this is at most 8 (more)
submissions per frame].
The maximum of 4 concurrent periodically submitted buffers was chosen
arbitrarily. Removing the maximum altogether does not measurably affect
performance for this game either way.
Credit goes to Philip Rebohle and his work on DXVK for helping me to notice that
periodic submission might make a difference.
--
https://gitlab.winehq.org/wine/wine/-/merge_requests/2724
Rationale:
- currently, winetest is built either as a 32bit exec or a 64bit exec,
containaing a bunch of tests of same bitness.
- there's no simple support for having parent process in one bitness,
and child process in a different bitness.
- lots of cases are not covered in ntdll, kernel32 and kernelbase tests.
- there are here and there a couple of tweaks to workaround this,
but nothing a bit solid.
Attached is a proposal to extend winetest to support better these
use cases:
- the idea is to add an extra-option to winetest.exe (64bit)
passing the path to the corresponding winetest.exe (32bit).
- when running test X (64bit), the path to corresponding test X (32bit)
will be passed to test X (64 bit), allowing it to trigger test
with test X (32bit).
- nothing more is provided: it's up to the test designer to decide
whether to use the 32bit child (and to adapt potentially the test)
to cope with the difference in bitness between parent and child.
- this can be used either in current wow64 setup, and also in
multi-arch wow64 setup (just need to change the patch to 32bit
winetest.exe)
There's an example of such test at the end of the serie.
Comments, ideas welcomed. And especially if it's something worth
continuing.
Note:
- this is first shot at it, it should be improved (especially in
ensuring that the 32bit/64bit pair is correct).
A+
--
https://gitlab.winehq.org/wine/wine/-/merge_requests/2002
The aim of this series is to re-implement dbghelp.EnumerateLoadedModules*
in order to match Windows' behavior (especially in wow64 environments).
The serie includes:
- a bunch of tests to compare 3 different sets of loaded modules:
+ the load DLL debug events (generated by kernel)
+ the output of dbghelp.EnumerateLoadedModules(), which is a
wrapper around kernel32.EnumProcesModulesEx (yet modifying some
information)
+ the actual list of loaded modules in dbghelp (SymEnumerateModules).
=> the later list can be populated automatically from the second if
requested to dbghelp (this is what is tested).
=> for the record, winedbg uses the first set to populate the third
set. We just test the content of first set, not the population to
the third.
- the reimplementation of EnumerateLoadedModules to match Window's behavior
(especially regarding paths information)
Despite the three sets look similar, they have quite a few differences
to be taken care of (especially in wow64 setup).
Note: having the correct paths (esp. in wow64) is important as dbghelp
sometimes tries some wild guesses based on the path (like bitness <g>)
or (in some other places) don't rely on path information and retries
things on its own.
The long target is to simplify the module lookup by relying on more
solid information.
@julliard: the paths for wow64 modules returned from kernel32 don't
match windows behavior: wine returns 32bit system modules from
c:\windows\syswow64 whereas windows returns them from c:\windows\system32
(except a couple of exceptions: 32bit ntdll and exe main module).
Implementation in dbghelp includes the correction of this.
(I opted not to change ntdll at once: testing on windows show that
kernel32.EnumProcesModulesEx returns exactly the ldr_data list, and
I didn't feel like adding this burden to this patch ;-).
Let me know if you want ntdll to be fixed before this patch.
--
https://gitlab.winehq.org/wine/wine/-/merge_requests/2497
The serie intent is to fix unexpected paths in module's list:
This happens:
- when running under old / (new) wow64
- when main module is located under the syswow64 directory
- the 32 bit modules are stored in LdrData (and then exposed through
a couple of ways) under syswow64 (they are normally stored under
system32, letting the redirection come into play when needed)
This triggers a couple of errors in winetest (as we're using
c:\windows\syswow64\msinfo32.exe in many tests to trigger a wow64
process from a winetest program).
This is the fix awaited in MR!2497.
@julliard: I'm not 100% happy with the fix itself by reintroducting
ref to the redirected DLLs in ntdll/PE but couldn't find a better idea.
--
v3: ntdll,wow64: Unredirect DLLs filename before storing them into LdrData.
kernel32: Harden some wow64 module tests.
https://gitlab.winehq.org/wine/wine/-/merge_requests/2578
This makes one able to see what is being built as PE and UNIX code and shows 'LINK' for linking in silent configuration `--enable-silent-rules`.
For example:
```
make: Entering directory '/home/bernhard/Documents/programming/builds/wine/x64'
UNIX dlls/windows.media.speech/unixlib.o
PE dlls/windows.media.speech/x86_64-windows/async.o
PE dlls/windows.media.speech/x86_64-windows/main.o
PE dlls/windows.media.speech/x86_64-windows/recognizer.o
PE dlls/windows.media.speech/x86_64-windows/event_handlers.o
PE dlls/windows.media.speech/x86_64-windows/listconstraint.o
PE dlls/windows.media.speech/x86_64-windows/synthesizer.o
PE dlls/windows.media.speech/x86_64-windows/vector.o
WIDL dlls/windows.media.speech/x86_64-windows/classes_r.res
LINK dlls/windows.media.speech/x86_64-windows/windows.media.speech.dll
LINK dlls/windows.media.speech/windows.media.speech.so
Wine build complete.
```
--
https://gitlab.winehq.org/wine/wine/-/merge_requests/2241