Hi, I've been running the tests for the first time since getting back from holiday. I seem to be getting a consistent failure on the first batch of IPv4 throughput tests, although the IPv6 tests before it worked fine: === perf/passt_tcppasst: throughput and latencyThroughput in Gbps, latency in µs, one thread at 4.8 GHz, 8 streams MTU: | 256B | 576B | 1280B | 1500B | 9000B | 65520B | |--------|--------|--------|--------|--------|--------| TCP throughput over IPv6: guest to host | - | - | 6.5 | 7.6 | 20.7 | 28.1 | TCP RR latency over IPv6: guest to host | - | - | - | - | - | 74 | TCP CRR latency over IPv6: guest to host | - | - | - | - | - | 227 | |--------|--------|--------|--------|--------|--------| TCP throughput over IPv4: guest to host | 0 | 0 | 0 | 0 | 0 | 0 | TCP RR latency over IPv4: guest to host | - | - | - | - | - | I haven't seen a failure like this before, has anyone else seen something like this? I'm not getting any messages from the iperf client at all - like it has no connectivity whatsoever, but the non-perf tests are all passing. Haven't done much troubleshooting yet. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson