diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/test/distribution_SUITE.erl | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl index c8f190d29d..d1d1e3840e 100644 --- a/erts/emulator/test/distribution_SUITE.erl +++ b/erts/emulator/test/distribution_SUITE.erl @@ -1527,13 +1527,19 @@ measure_latency(DataFun, Dropper, Echo, Payload) -> ok end || _ <- lists:seq(1,10)], - {TS, _} = + {TS, Times} = timer:tc(fun() -> [begin + T0 = erlang:monotonic_time(), Echo ! {self(), hello}, - receive hello -> ok end + receive hello -> ok end, + (erlang:monotonic_time() - T0) / 1000000 end || _ <- lists:seq(1,100)] end), + Avg = lists:sum(Times) / length(Times), + StdDev = math:sqrt(lists:sum([math:pow(V - Avg,2) || V <- Times]) / length(Times)), + ct:pal("Times: Avg: ~p Max: ~p Min: ~p Var: ~p", + [Avg, lists:max(Times), lists:min(Times), StdDev]), [begin Sender ! die, receive |