sequential control: TOTAL_FILES_CREATED=66 (=cap)
race runs (pf=65, 128 threads): FINAL=70 OVERSHOOT / 71 OVERSHOOT x3 / 70 ... 11 of 12 runs overshoot to 70-71

env: DragonFly 6.5-DEVELOPMENT INVARIANTS kernel, QEMU/KVM 6 vCPU, 4GB RAM