p In the ns-3 tests, the timings are not shown because the exact values may vary with your ns-3 version.
p We just want to check that the ns-3 bindings of SimGrid are working correctly, we don't want to thoroughly test ns-3.

$ ./ns3-simultaneous-send-rcv ${platfdir}/ns3-big-cluster.xml --cfg=network/model:ns-3
> [0.000000] [xbt_cfg/INFO] Configuration change: Set 'network/model' to 'ns-3'
> [c-01.rennes:receiver:(1) 22.000199] [s4u_test/INFO] Done receiving from 100 senders, each of them sending 5 messages