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0c153c124e
A thread samples every two seconds the video memory budget against this process's use (vk_mem_vram) and the system's commit headroom and free physical memory (plat_commit_info, plat_mem_info), and turns each side into a level: roomy, normal, tight or critical, with five points of hysteresis upward and a 256 MiB floor. Changes are logged, and the memory report's system line ends with both levels. MEM_BUDGET_TEST_VRAM_MB and MEM_BUDGET_TEST_RAM_MB pretend a side is that small, so that what gives memory back can be tried on a large machine; the texture cache's rules are unchanged. tests/mem_budget_check.py checks the levels and the hysteresis. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
"""Build and run tests/mem_budget_check.c: runtime/mem_budget.h, which turns the free share of the video memory and
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of the system memory into a level (roomy, normal, tight, critical) with hysteresis, for the owners of memory that can
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be given back.
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No GPU, no game files, any Python.
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Usage: mem_budget_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' / 'mem_budget'
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work.mkdir(parents=True, exist_ok=True)
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exe = work / ('mem_budget_check.exe' if os.name == 'nt' else 'mem_budget_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' / 'mem_budget_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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