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feat: Add work_time_ms to benchmark logging for load analysis

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Track actual work time separately from frame time to determine
system load percentage:
- work_time_ms: Time spent doing actual work before display()
- sleep_time = frame_time_ms - work_time_ms

This allows calculating load percentage:
  load% = (work_time / frame_time) * 100

Example at 60fps with light load:
- frame_time: 16.67ms, work_time: 2ms
- load: 12%, sleep: 14.67ms

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
John McCardle 2025-11-28 16:13:40 -05:00
commit 8583db7225
5 changed files with 16 additions and 3 deletions
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12
tests/unit/benchmark_logging_test.py
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@ -57,8 +57,8 @@ def run_test(runtime):
# Check frame structure
frame = data['frames'][0]
required_fields = ['frame_number', 'timestamp_ms', 'frame_time_ms', 'fps',
'grid_render_ms', 'entity_render_ms', 'python_time_ms',
'draw_calls', 'ui_elements', 'logs']
'work_time_ms', 'grid_render_ms', 'entity_render_ms',
'python_time_ms', 'draw_calls', 'ui_elements', 'logs']
for field in required_fields:
if field not in frame:
print(f"FAIL: Missing field '{field}' in frame")
@ -75,7 +75,13 @@ def run_test(runtime):
print("FAIL: Log message not found in any frame")
sys.exit(1)
print(f" First frame FPS: {data['frames'][0]['fps']}")
# Show timing breakdown
f0 = data['frames'][0]
print(f" First frame FPS: {f0['fps']}")
print(f" Frame time: {f0['frame_time_ms']:.3f}ms, Work time: {f0['work_time_ms']:.3f}ms")
if f0['frame_time_ms'] > 0:
load_pct = (f0['work_time_ms'] / f0['frame_time_ms']) * 100
print(f" Load: {load_pct:.1f}% (sleep time: {f0['frame_time_ms'] - f0['work_time_ms']:.3f}ms)")
print(f" Log messages captured: Yes")
# Clean up