From d550a0339cce93e8d62f30c2d5e9ab6dd329a50e Mon Sep 17 00:00:00 2001
From: Raimo Niskanen <raimo@erlang.org>
Date: Mon, 20 Nov 2017 15:42:58 +0100
Subject: Write SSL distribution benchmarks

---
 lib/ssl/test/ssl_bench_test_lib.erl | 75 +++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 lib/ssl/test/ssl_bench_test_lib.erl

(limited to 'lib/ssl/test/ssl_bench_test_lib.erl')

diff --git a/lib/ssl/test/ssl_bench_test_lib.erl b/lib/ssl/test/ssl_bench_test_lib.erl
new file mode 100644
index 0000000000..e5cbb911bd
--- /dev/null
+++ b/lib/ssl/test/ssl_bench_test_lib.erl
@@ -0,0 +1,75 @@
+%%%-------------------------------------------------------------------
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2017. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(ssl_bench_test_lib).
+
+%% API
+-export([setup/1]).
+
+%% Internal exports
+-export([setup_server/1]).
+
+-define(remote_host, "NETMARKS_REMOTE_HOST").
+
+setup(Name) ->
+    Host = case os:getenv(?remote_host) of
+	       false ->
+		   {ok, This} = inet:gethostname(),
+		   This;
+	       RemHost ->
+		   RemHost
+	   end,
+    Node = list_to_atom(atom_to_list(Name) ++ "@" ++ Host),
+    SlaveArgs = case init:get_argument(pa) of
+	       {ok, PaPaths} ->
+		   lists:append([" -pa " ++ P || [P] <- PaPaths]);
+	       _ -> []
+	   end,
+    %% io:format("Slave args: ~p~n",[SlaveArgs]),
+    Prog =
+	case os:find_executable("erl") of
+	    false -> "erl";
+	    P -> P
+	end,
+    io:format("Prog = ~p~n", [Prog]),
+
+    case net_adm:ping(Node) of
+	pong -> ok;
+	pang ->
+	    {ok, Node} =
+                slave:start(Host, Name, SlaveArgs, no_link, Prog)
+    end,
+    Path = code:get_path(),
+    true = rpc:call(Node, code, set_path, [Path]),
+    ok = rpc:call(Node, ?MODULE, setup_server, [node()]),
+    io:format("Client (~p) using ~s~n",[node(), code:which(ssl)]),
+    (Node =:= node()) andalso restrict_schedulers(client),
+    Node.
+
+setup_server(ClientNode) ->
+    (ClientNode =:= node()) andalso restrict_schedulers(server),
+    io:format("Server (~p) using ~s~n",[node(), code:which(ssl)]),
+    ok.
+
+restrict_schedulers(Type) ->
+    %% We expect this to run on 8 core machine
+    Extra0 = 1,
+    Extra =  if (Type =:= server) -> -Extra0; true -> Extra0 end,
+    Scheds = erlang:system_info(schedulers),
+    erlang:system_flag(schedulers_online, (Scheds div 2) + Extra).
-- 
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