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https://github.com/Klipper4FlashForge/firmware.git
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Oleksandr ShyshatskyiandClaude Opus 5
b55461cd6b
EXCLUDE_OBJECT installs the ExcludeObject move transform, and inside a cancelled object _ignore_move updates Python state without ever calling next_transform.move(). Nothing reaches the toolhead, so the lookahead buffer that normally blocks gcode.run_script never fills, and virtual_sdcard.work_handler runs on its own yields alone -- one reactor.pause per 8192-byte read, about 330 lines apart. The eboard's soft-PWM refresh misses its deadline and the MCU shuts down with "Timer too close". Measured on a Creator 5 Pro: 37 s from "Excluding object" to the shutdown, with 1 Hz status queries answered in 1.30-1.78 s throughout while the main MCU sat at mcu_awake=0.000 and gcodein=0. EXCLUDE_OBJECT_DEFINE is not the cost. The line costs 115 ms through the live klippy and nothing thereafter; three prints of the same file without a cancel complete with bytes_retransmit=0. Removing it removes the object there is to cancel, not the work. tools/gcode-bench holds the harnesses, including the shlex fast path that takes that DEFINE from 91.6 ms to 5.9 ms on the printer -- worth having for large plates, but not this bug. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AVUMfbNuKUWWV32PBcydwb
43 lines
1.5 KiB
Python
Executable File
43 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Measure klipper's gcode dispatch throughput on the move lines of a real file.
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Only the parse+dispatch half runs: the handlers are no-ops, so the number is a
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floor on what klippy must spend per line before any kinematics happen.
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"""
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import argparse, os, sys, time
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sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
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from bench_define import build
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def main():
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p = argparse.ArgumentParser()
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p.add_argument('--klipper', required=True)
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p.add_argument('--gcode', required=True)
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p.add_argument('--limit', type=int, default=20000)
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p.add_argument('--repeat', type=int, default=3)
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a = p.parse_args()
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moves = []
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with open(a.gcode, 'r', errors='replace') as f:
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for line in f:
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if line[:2] in ('G1', 'G0') and line[2:3] in (' ', '\n'):
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moves.append(line.rstrip('\n'))
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if len(moves) >= a.limit:
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break
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gc, eo = build(a.klipper)
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for cmd in ('G0', 'G1', 'G92', 'M204', 'M106', 'M107'):
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gc.register_command(cmd, lambda gcmd: None)
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gc.gcode_handlers = gc.ready_gcode_handlers
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best = None
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for _ in range(a.repeat):
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t0 = time.perf_counter()
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gc._process_commands(moves, need_ack=False)
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dt = time.perf_counter() - t0
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best = dt if best is None else min(best, dt)
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print('move lines: %d' % len(moves))
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print('parse+dispatch: %.3f s total, %.3f ms/line, %.0f lines/s'
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% (best, best * 1e3 / len(moves), len(moves) / best))
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main()
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