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A draw whose pipeline is still building is skipped when its pass is rendered every frame and waits otherwise, so that a lookup table or a volume generated once is not left empty. "Every frame" meant "in the last four frames", so after a loading screen or a full-screen menu every pass of the first frame read as new: each draw with a new pipeline waited on the replay thread, up to 30 s each, and a mesh draw, whose pipeline has no fast link, for its whole compile. A player's 0.7.1 log shows it at three area changes: frames of 954, 1015 and 684 ms with 853, 960 and 663 ms of pipeline wait, six mesh draws waiting 52 to 660 ms in passes whose targets had been rendered in thousands of frames. The target history (now runtime/vk_target_frames.h) also counts the frames each target was rendered in, for as long as it is the same guest texture. From eight frames on its pass is per-frame however long ago the last one was, and its draws are skipped and built by the workers like any other (pipe_skip_steady, on by default). A target rendered for the first time still waits, now from one pool of 50 ms a presented frame that the full-screen draws share (pipe_frame_wait_ms; oneshot_budget = 0 gives the old wait back), a mesh draw 8 ms at most, and the wait for a one-shot draw's shader comes from the same pool (gfx_shader_await takes a limit). A full-screen draw with no picture left to hold waits 40 ms more instead of 500. One frame so waits under 100 ms for pipelines in all. Every 600 frames with a miss the log says how many draws found a shader or pipeline missing, how long they held the replay thread in all and in the worst frame, by the kind of wait, and how many were skipped at its end. tests/target_frames_check.py replays the area change of that log against the header. Not yet run in the game. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
"""Build and run tests/target_frames_check.c: runtime/vk_target_frames.h, which render passes count as drawn frame
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after frame, so that a draw into them is skipped while its pipeline builds instead of waited for.
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No GPU, no game files, any Python.
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Usage: target_frames_check.py
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"""
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import os
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import shutil
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import subprocess
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import sys
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[1]
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MSYS_BIN = Path(r'C:\msys64\ucrt64\bin')
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def compiler():
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"""$CC, else MSYS2 UCRT64's clang, else clang on PATH (as tests/diff/common.py picks it, without its Unicorn)."""
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if os.environ.get('CC'):
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return os.environ['CC']
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if os.name == 'nt' and (MSYS_BIN / 'clang.exe').exists():
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return str(MSYS_BIN / 'clang.exe')
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return shutil.which('clang') or 'clang'
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def main():
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work = ROOT / 'build' / 'test' / 'target_frames'
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work.mkdir(parents=True, exist_ok=True)
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exe = work / ('target_frames_check.exe' if os.name == 'nt' else 'target_frames_check')
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env = dict(os.environ)
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if os.name == 'nt' and MSYS_BIN.exists():
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env['PATH'] = str(MSYS_BIN) + os.pathsep + env.get('PATH', '')
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subprocess.check_call([compiler(), '-std=gnu11', '-O1', '-Wall', '-Werror', '-I', str(ROOT / 'runtime'),
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str(ROOT / 'tests' / 'target_frames_check.c'), '-o', str(exe)], env=env)
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return subprocess.run([str(exe)], env=env).returncode
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if __name__ == '__main__':
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sys.exit(main())
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