Measured on windev (3 alternated sessions) and macOS: a pool resume in place
of the dispatcher, and an inline-on-reader upper bound, with the harness as
committed and with its paced continuation made synchronous.
- pool: 10k/s host CPU unchanged, idle p50 and idle CPU worse (macOS idle CPU
x3 from pool spin); only the closed loop gains. Not kept.
- inline (unsafe for every seam; the ceiling for a VirtualTag-only opt-in):
~8 points of a core at 10k/s raw and ~50 us idle p50 on windev with a cheap
continuation, nothing with the harness as committed. Both budgets still
missed by a wide margin, so the opt-in was not built.
No code change. Records the remaining attribution (harness pool hop ~15
points raw; reader wake + syscalls; worker side untouched).
Claude-Session: https://claude.ai/code/session_01GT67AD99zQQqpLCVm3p7xk
Joseph Doherty
464b699e18