diff options
Diffstat (limited to 'lib/ssl/test/ssl_dist_bench_SUITE.erl')
| -rw-r--r-- | lib/ssl/test/ssl_dist_bench_SUITE.erl | 99 |
1 files changed, 98 insertions, 1 deletions
diff --git a/lib/ssl/test/ssl_dist_bench_SUITE.erl b/lib/ssl/test/ssl_dist_bench_SUITE.erl index 7409b69639..d9d9c4e473 100644 --- a/lib/ssl/test/ssl_dist_bench_SUITE.erl +++ b/lib/ssl/test/ssl_dist_bench_SUITE.erl @@ -32,6 +32,7 @@ -export( [setup/1, roundtrip/1, + sched_utilization/1, throughput_0/1, throughput_64/1, throughput_1024/1, @@ -56,6 +57,7 @@ groups() -> %% {setup, [{repeat, 1}], [setup]}, {roundtrip, [{repeat, 1}], [roundtrip]}, + {sched_utilization,[{repeat, 1}], [sched_utilization]}, {throughput, [{repeat, 1}], [throughput_0, throughput_64, @@ -69,7 +71,9 @@ groups() -> all_groups() -> [{group, setup}, {group, roundtrip}, - {group, throughput}]. + {group, throughput}, + {group, sched_utilization} + ]. init_per_suite(Config) -> Digest = sha1, @@ -351,6 +355,99 @@ roundtrip_client(Pid, Mon, StartTime, N) -> roundtrip_client(Pid, Mon, StartTime, N - 1) end. +%%--------------------------------------- +%% Scheduler utilization at constant load + + +sched_utilization(Config) -> + run_nodepair_test( + fun(A, B, Prefix, HA, HB) -> + sched_utilization(A, B, Prefix, HA, HB, proplists:get_value(ssl_dist, Config)) + end, Config). + +sched_utilization(A, B, Prefix, HA, HB, SSL) -> + [] = ssl_apply(HA, erlang, nodes, []), + [] = ssl_apply(HB, erlang, nodes, []), + {ClientMsacc, ServerMsacc, Msgs} = + ssl_apply(HA, fun () -> sched_util_runner(A, B, SSL) end), + [B] = ssl_apply(HA, erlang, nodes, []), + [A] = ssl_apply(HB, erlang, nodes, []), + msacc:print(ClientMsacc), + msacc:print(ServerMsacc), + ct:pal("Got ~p msgs",[length(Msgs)]), + report(Prefix++" Sched Utilization Client", + 10000 * msacc:stats(system_runtime,ClientMsacc) / + msacc:stats(system_realtime,ClientMsacc), "util 0.01 %"), + report(Prefix++" Sched Utilization Server", + 10000 * msacc:stats(system_runtime,ServerMsacc) / + msacc:stats(system_realtime,ServerMsacc), "util 0.01 %"), + ok. + +%% Runs on node A and spawns a server on node B +%% We want to avoid getting busy_dist_port as it hides the true SU usage +%% of the receiver and sender. +sched_util_runner(A, B, true) -> + sched_util_runner(A, B, 50); +sched_util_runner(A, B, false) -> + sched_util_runner(A, B, 250); +sched_util_runner(A, B, Senders) -> + Payload = payload(5), + [A] = rpc:call(B, erlang, nodes, []), + ServerPid = + erlang:spawn( + B, + fun () -> throughput_server() end), + ServerMsacc = + erlang:spawn( + B, + fun() -> + receive + {start,Pid} -> + msacc:start(10000), + Pid ! {ServerPid,msacc:stats()} + end + end), + spawn_link( + fun() -> + %% We spawn 250 senders which should mean that we + %% have a load of 250 msgs/msec + [spawn_link( + fun() -> + throughput_client(ServerPid,Payload) + end) || _ <- lists:seq(1, Senders)] + end), + + erlang:system_monitor(self(),[busy_dist_port]), + ServerMsacc ! {start,self()}, + msacc:start(10000), + ClientMsaccStats = msacc:stats(), + ServerMsaccStats = receive {ServerPid,Stats} -> Stats end, + {ClientMsaccStats,ServerMsaccStats, flush()}. + +flush() -> + receive + M -> + [M | flush()] + after 0 -> + [] + end. + +throughput_server() -> + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + receive _ -> ok end, + throughput_server(). + +throughput_client(Pid, Payload) -> + Pid ! Payload, + receive after 1 -> throughput_client(Pid, Payload) end. %%----------------- %% Throughput speed |