done 3000 loops (16 pipelined calls + RST each)
netstat -m before: 7/146632 mbufs, 263 data clusters
netstat -m after:  identical (7/146632, 263, 0 denied, 0 delayed)

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