ssh: new benchmark suite: ssh_bench_SUITE

23 files changed, 430 insertions, 3 deletions

diff --git a/lib/ssh/test/Makefile b/lib/ssh/test/Makefile
index 512e429962..fab79a7a43 100644
--- a/lib/ssh/test/Makefile
+++ b/lib/ssh/test/Makefile
@@ -36,6 +36,7 @@ MODULES= \
 	ssh_options_SUITE \
 	ssh_renegotiate_SUITE \
 	ssh_basic_SUITE \
+	ssh_bench_SUITE \
 	ssh_connection_SUITE \
 	ssh_protocol_SUITE \
 	ssh_sftp_SUITE \
@@ -49,6 +50,7 @@ MODULES= \
 	ssh_key_cb_options \
 	ssh_trpt_test_lib \
 	ssh_echo_server \
+	ssh_bench_dev_null \
 	ssh_peername_sockname_server \
 	ssh_test_cli \
 	ssh_relay \
diff --git a/lib/ssh/test/ssh.spec b/lib/ssh/test/ssh.spec
index 92351f3ed1..68268cb20d 100644
--- a/lib/ssh/test/ssh.spec
+++ b/lib/ssh/test/ssh.spec
@@ -1,6 +1,6 @@
 {suites,"../ssh_test",all}.
 
-{skip_suites, "../ssh_test", [
+{skip_suites, "../ssh_test", [ssh_bench_SUITE
                              ],
  "Benchmarks run separately"}.
 
diff --git a/lib/ssh/test/ssh_bench.spec b/lib/ssh/test/ssh_bench.spec
index 7204073cea..b0b64713cf 100644
--- a/lib/ssh/test/ssh_bench.spec
+++ b/lib/ssh/test/ssh_bench.spec
@@ -1,2 +1,2 @@
-{suites,"../ssh_test",[
-		       ]}.
+{suites,"../ssh_test",[ssh_bench_SUITE
+	              ]}.
diff --git a/lib/ssh/test/ssh_bench_SUITE.erl b/lib/ssh/test/ssh_bench_SUITE.erl
new file mode 100644
index 0000000000..d2ba8afa1a
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE.erl
@@ -0,0 +1,252 @@
+%%%-------------------------------------------------------------------
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015-2016. 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(ssh_bench_SUITE).
+-compile(export_all).
+
+-include_lib("common_test/include/ct_event.hrl").
+-include_lib("common_test/include/ct.hrl").
+
+-include_lib("ssh/src/ssh.hrl").
+-include_lib("ssh/src/ssh_transport.hrl").
+-include_lib("ssh/src/ssh_connect.hrl").
+-include_lib("ssh/src/ssh_userauth.hrl").
+
+%%%================================================================
+%%%
+%%% Suite declarations
+%%% 
+
+suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames,2}]}]},
+	    {timetrap,{minutes,1}}
+	   ].
+all() -> [connect,
+          transfer_text
+	 ].
+
+-define(UID, "foo").
+-define(PWD, "bar").
+-define(Nruns, 8).
+
+%%%================================================================
+%%%
+%%% Init per suite
+%%% 
+
+init_per_suite(Config) ->
+    catch ssh:stop(),
+    try 
+	ok = ssh:start()
+    of
+        ok ->
+            DataSize = 1000000,
+            SystemDir = proplists:get_value(data_dir, Config),
+            Algs = insert_none(ssh:default_algorithms()),
+            {_ServerPid, _Host, Port} =
+                ssh_test_lib:daemon([{system_dir, SystemDir},
+                                     {user_passwords, [{?UID,?PWD}]},
+                                     {failfun, fun ssh_test_lib:failfun/2},
+                                     {preferred_algorithms, Algs},
+                                     {max_random_length_padding, 0},
+                                     {subsystems, [{"/dev/null", {ssh_bench_dev_null,[DataSize]}}]}
+                                    ]),
+            [{host,"localhost"}, {port,Port}, {uid,?UID}, {pwd,?PWD}, {data_size,DataSize} | Config]
+    catch
+	C:E ->
+	    {skip, io_lib:format("Couldn't start ~p:~p",[C,E])}
+    end.
+    
+end_per_suite(_Config) ->
+    catch ssh:stop(),
+    ok.
+
+%%%================================================================
+%%%
+%%% Init per testcase
+%%% 
+
+init_per_testcase(_Func, Conf) ->
+    Conf.
+
+end_per_testcase(_Func, _Conf) ->
+    ok.
+
+%%%================================================================
+%%%
+%%% Testcases
+%%%
+
+%%%----------------------------------------------------------------
+%%% Measure the time for an Erlang client to connect to an Erlang
+%%% server on the localhost
+
+connect(Config) ->
+    KexAlgs = proplists:get_value(kex, ssh:default_algorithms()),
+    ct:pal("KexAlgs = ~p",[KexAlgs]),
+    lists:foreach(
+      fun(KexAlg) ->
+              PrefAlgs = preferred_algorithms(KexAlg),
+              report([{value, measure_connect(Config,
+                                              [{preferred_algorithms,PrefAlgs}])},
+                      {suite, ?MODULE},
+                      {name, mk_name(["Connect erlc erld ",KexAlg," [µs]"])}
+                     ])
+      end, KexAlgs).
+
+
+measure_connect(Config, Opts) ->
+    Port = proplists:get_value(port, Config),
+    ConnectOptions = [{user,     proplists:get_value(uid,      Config)},
+                      {password, proplists:get_value(pwd,      Config)},
+                      {user_dir, proplists:get_value(priv_dir, Config)},
+                      {silently_accept_hosts, true},
+                      {user_interaction, false},
+                      {max_random_length_padding, 0}
+                     ] ++ Opts,
+    median(
+      [begin
+           {Time, {ok,Pid}} = timer:tc(ssh,connect,["localhost", Port, ConnectOptions]),
+           ssh:close(Pid),
+           Time
+       end || _ <- lists:seq(1,?Nruns)]).
+
+%%%----------------------------------------------------------------
+%%% Measure the time to transfer a set of data with
+%%% and without crypto
+
+transfer_text(Config) ->
+    Port = proplists:get_value(port, Config),
+    Options = [{user,     proplists:get_value(uid,      Config)},
+               {password, proplists:get_value(pwd,      Config)},
+               {user_dir, proplists:get_value(priv_dir, Config)},
+               {silently_accept_hosts, true},
+               {user_interaction, false},
+               {max_random_length_padding, 0}
+              ],
+    Data = gen_data(proplists:get_value(data_size,Config)),
+
+    [connect_measure(Port, Crypto, Mac, Data, Options)
+     || {Crypto,Mac} <- [{        none,                    none},
+                         {'aes128-ctr',             'hmac-sha1'},
+                         {'aes256-ctr',             'hmac-sha1'},
+                         {'[email protected]', 'hmac-sha1'},
+                         {'aes128-cbc',             'hmac-sha1'},
+                         {'3des-cbc',               'hmac-sha1'},
+                         {'aes128-ctr',             'hmac-sha2-256'},
+                         {'aes128-ctr',             'hmac-sha2-512'}
+                        ],
+        crypto_mac_supported(Crypto,Mac)].
+    
+
+crypto_mac_supported(none, none) ->
+    true;
+crypto_mac_supported(C, M) -> 
+    Algs = ssh:default_algorithms(),
+    [{_,Cs},_] = proplists:get_value(cipher, Algs),
+    [{_,Ms},_] = proplists:get_value(mac, Algs),
+    lists:member(C,Cs) andalso lists:member(M,Ms).
+    
+
+gen_data(DataSz) ->
+    Data0 = << <<C>> || _ <- lists:seq(1,DataSz div 256),
+                        C <- lists:seq(0,255) >>,
+    Data1 = << <<C>> || C <- lists:seq(0,(DataSz rem 256) - 1) >>,
+    <<Data0/binary, Data1/binary>>.
+
+
+%% connect_measure(Port, Cipher, Mac, Data, Options) ->
+%%     report([{value, 1},
+%%              {suite, ?MODULE},
+%%              {name, mk_name(["Transfer 1M bytes ",Cipher,"/",Mac," [µs]"])}]);
+connect_measure(Port, Cipher, Mac, Data, Options) ->
+    Times =
+        [begin
+             {ok,C} = ssh:connect("localhost", Port, [{preferred_algorithms, [{cipher,[Cipher]},
+                                                                              {mac,[Mac]}]}
+                                                      |Options]),
+             {ok,Ch} = ssh_connection:session_channel(C, 10000),
+             success = ssh_connection:subsystem(C, Ch, "/dev/null", 10000),
+             {Time,ok} = timer:tc(?MODULE, send_wait_acc, [C, Ch, Data]),
+             ok = ssh_connection:send_eof(C, Ch),
+             ssh:close(C),
+             Time
+         end || _ <- lists:seq(1,?Nruns)],
+    
+    report([{value, median(Times)},
+            {suite, ?MODULE},
+            {name, mk_name(["Transfer 1M bytes ",Cipher,"/",Mac," [µs]"])}]).
+
+send_wait_acc(C, Ch, Data) ->
+    ssh_connection:send(C, Ch, Data),
+    receive
+        {ssh_cm, C, {data, Ch, 0, <<"READY">>}} -> ok
+    end.
+            
+
+%%%================================================================
+%%%
+%%% Private
+%%% 
+
+%%%----------------------------------------------------------------
+insert_none(L) ->
+    lists:foldl(fun insert_none/2, [], L).
+
+insert_none({T,L}, Acc) when T==cipher ;
+                             T==mac    ->
+    [{T, [{T1,L1++[none]} || {T1,L1} <- L]} | Acc];
+insert_none(_, Acc) ->
+    Acc.
+
+%%%----------------------------------------------------------------
+mk_name(Name) -> [char(C) || C <- lists:concat(Name)].
+
+char($-) -> $_;
+char(C) -> C.
+
+%%%----------------------------------------------------------------
+preferred_algorithms(KexAlg) ->
+     [{kex,         [KexAlg]},
+      {public_key,  ['ssh-rsa']},
+      {cipher,      ['aes128-ctr']},
+      {mac,         ['hmac-sha1']},
+      {compression, [none]}
+     ].
+
+%%%----------------------------------------------------------------
+median(Data) when is_list(Data) ->
+    SortedData = lists:sort(Data),
+    N = length(Data),
+    Median =
+        case N rem 2 of
+            0 ->
+                MeanOfMiddle = (lists:nth(N div 2, SortedData) +
+                                    lists:nth(N div 2 + 1, SortedData)) / 2,
+                round(MeanOfMiddle);
+            1 ->
+                lists:nth(N div 2 + 1, SortedData)
+        end,
+    ct:pal("median(~p) = ~p",[SortedData,Median]),
+    Median.
+
+
+report(Data) ->
+    ct:pal("EventData = ~p",[Data]),
+    ct_event:notify(#event{name = benchmark_data,
+                           data = Data}).
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_dsa b/lib/ssh/test/ssh_bench_SUITE_data/id_dsa
new file mode 100644
index 0000000000..d306f8b26e
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_dsa
@@ -0,0 +1,13 @@
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa256 b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa256
new file mode 100644
index 0000000000..4b1eb12eaa
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa256
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIJfCaBKIIKhjbJl5F8BedqlXOQYDX5ba9Skypllmx/w+oAoGCCqGSM49
+AwEHoUQDQgAE49RbK2xQ/19ji3uDPM7uT4692LbwWF1TiaA9vUuebMGazoW/98br
+N9xZu0L1AWwtEjs3kmJDTB7eJEGXnjUAcQ==
+-----END EC PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa256.pub b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa256.pub
new file mode 100644
index 0000000000..a0147e60fa
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa256.pub
@@ -0,0 +1 @@
+ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOPUWytsUP9fY4t7gzzO7k+Ovdi28FhdU4mgPb1LnmzBms6Fv/fG6zfcWbtC9QFsLRI7N5JiQ0we3iRBl541AHE= uabhnil@elxadlj3q32
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa384 b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa384
new file mode 100644
index 0000000000..4e8aa40959
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa384
@@ -0,0 +1,6 @@
+-----BEGIN EC PRIVATE KEY-----
+MIGkAgEBBDCYXb6OSAZyXRfLXOtMo43za197Hdc/T0YKjgQQjwDt6rlRwqTh7v7S
+PV2kXwNGdWigBwYFK4EEACKhZANiAARN2khlJUOOIiwsWHEALwDieeZR96qL4pUd
+ci7aeGaczdUK5jOA9D9zmBZtSYTfO8Cr7ekVghDlcWAIJ/BXcswgQwSEQ6wyfaTF
+8FYfyr4l3u9IirsnyaFzeIgeoNis8Gw=
+-----END EC PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa384.pub b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa384.pub
new file mode 100644
index 0000000000..41e722e545
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa384.pub
@@ -0,0 +1 @@
+ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBE3aSGUlQ44iLCxYcQAvAOJ55lH3qovilR1yLtp4ZpzN1QrmM4D0P3OYFm1JhN87wKvt6RWCEOVxYAgn8FdyzCBDBIRDrDJ9pMXwVh/KviXe70iKuyfJoXN4iB6g2KzwbA== uabhnil@elxadlj3q32
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa521 b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa521
new file mode 100644
index 0000000000..7196f46e97
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa521
@@ -0,0 +1,7 @@
+-----BEGIN EC PRIVATE KEY-----
+MIHbAgEBBEFMadoz4ckEcClfqXa2tiUuYkJdDfwq+/iFQcpt8ESuEd26IY/vm47Q
+9UzbPkO4ou8xkNsQ3WvCRQBBWtn5O2kUU6AHBgUrgQQAI6GBiQOBhgAEAde5BRu5
+01/jS0jRk212xsb2DxPrxNpgp6IMCV8TA4Eps+8bSqHB091nLiBcP422HXYfuCd7
+XDjSs8ihcmhp0hCRASLqZR9EzW9W/SOt876May1Huj5X+WSO6RLe7vPn9vmf7kHf
+pip6m7M7qp2qGgQ3q2vRwS2K/O6156ohiOlmuuFs
+-----END EC PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa521.pub b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa521.pub
new file mode 100644
index 0000000000..8f059120bc
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_ecdsa521.pub
@@ -0,0 +1 @@
+ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAHXuQUbudNf40tI0ZNtdsbG9g8T68TaYKeiDAlfEwOBKbPvG0qhwdPdZy4gXD+Nth12H7gne1w40rPIoXJoadIQkQEi6mUfRM1vVv0jrfO+jGstR7o+V/lkjukS3u7z5/b5n+5B36YqepuzO6qdqhoEN6tr0cEtivzuteeqIYjpZrrhbA== uabhnil@elxadlj3q32
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/id_rsa b/lib/ssh/test/ssh_bench_SUITE_data/id_rsa
new file mode 100644
index 0000000000..9d7e0dd5fb
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/id_rsa
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_dsa_key b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_dsa_key
new file mode 100644
index 0000000000..51ab6fbd88
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_dsa_key
@@ -0,0 +1,13 @@
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_dsa_key.pub b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_dsa_key.pub
new file mode 100644
index 0000000000..4dbb1305b0
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_dsa_key.pub
@@ -0,0 +1,11 @@
+---- BEGIN SSH2 PUBLIC KEY ----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+---- END SSH2 PUBLIC KEY ----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key256 b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key256
new file mode 100644
index 0000000000..2979ea88ed
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key256
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIMe4MDoit0t8RzSVPwkCBemQ9fhXL+xnTSAWISw8HNCioAoGCCqGSM49
+AwEHoUQDQgAEo2q7U3P6r0W5WGOLtM78UQtofM9UalEhiZeDdiyylsR/RR17Op0s
+VPGSADLmzzgcucLEKy17j2S+oz42VUJy5A==
+-----END EC PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key256.pub b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key256.pub
new file mode 100644
index 0000000000..85dc419345
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key256.pub
@@ -0,0 +1 @@
+ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKNqu1Nz+q9FuVhji7TO/FELaHzPVGpRIYmXg3YsspbEf0UdezqdLFTxkgAy5s84HLnCxCste49kvqM+NlVCcuQ= uabhnil@elxadlj3q32
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key384 b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key384
new file mode 100644
index 0000000000..fb1a862ded
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key384
@@ -0,0 +1,6 @@
+-----BEGIN EC PRIVATE KEY-----
+MIGkAgEBBDArxbDfh3p1okrD9wQw6jJ4d4DdlBPD5GqXE8bIeRJiK41Sh40LgvPw
+mkqEDSXK++CgBwYFK4EEACKhZANiAAScl43Ih2lWTDKrSox5ve5uiTXil4smsup3
+CfS1XPjKxgBAmlfBim8izbdrT0BFdQzz2joduNMtpt61wO4rGs6jm0UP7Kim9PC7
+Hneb/99fIYopdMH5NMnk60zGO1uZ2vc=
+-----END EC PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key384.pub b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key384.pub
new file mode 100644
index 0000000000..428d5fb7d7
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key384.pub
@@ -0,0 +1 @@
+ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBJyXjciHaVZMMqtKjHm97m6JNeKXiyay6ncJ9LVc+MrGAECaV8GKbyLNt2tPQEV1DPPaOh240y2m3rXA7isazqObRQ/sqKb08Lsed5v/318hiil0wfk0yeTrTMY7W5na9w== uabhnil@elxadlj3q32
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key521 b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key521
new file mode 100644
index 0000000000..3e51ec2ecd
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key521
@@ -0,0 +1,7 @@
+-----BEGIN EC PRIVATE KEY-----
+MIHcAgEBBEIB8O1BFkl2HQjQLRLonEZ97da/h39DMa9/0/hvPZWAI8gUPEQcHxRx
+U7b09p3Zh+EBbMFq8+1ae9ds+ZTxE4WFSvKgBwYFK4EEACOhgYkDgYYABAAlWVjq
+Bzg7Wt4gE6UNb1lRE2cnlmH2L/A5uo6qZRx5lPnSKOxEhxSb/Oay1+9d6KRdrh6/
+vlhd9SHDBhLcAPDvWgBnJIEj92Q3pXX4JtoitL0yl+SvvU+vUh966mzHShHzj8p5
+ccOgPkPNoA70yrpGzkIhPezpZOQdCaOXj/jFqNCTDg==
+-----END EC PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key521.pub b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key521.pub
new file mode 100644
index 0000000000..017a29f4da
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_ecdsa_key521.pub
@@ -0,0 +1 @@
+ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAAlWVjqBzg7Wt4gE6UNb1lRE2cnlmH2L/A5uo6qZRx5lPnSKOxEhxSb/Oay1+9d6KRdrh6/vlhd9SHDBhLcAPDvWgBnJIEj92Q3pXX4JtoitL0yl+SvvU+vUh966mzHShHzj8p5ccOgPkPNoA70yrpGzkIhPezpZOQdCaOXj/jFqNCTDg== uabhnil@elxadlj3q32
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_rsa_key b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_rsa_key
new file mode 100644
index 0000000000..79968bdd7d
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_rsa_key
@@ -0,0 +1,16 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_rsa_key.pub b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_rsa_key.pub
new file mode 100644
index 0000000000..75d2025c71
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_SUITE_data/ssh_host_rsa_key.pub
@@ -0,0 +1,5 @@
+---- BEGIN SSH2 PUBLIC KEY ----
+AAAAB3NzaC1yc2EAAAADAQABAAAAgQDCZX+4FBDwZIh9y/Uxee1VJnEXlowpz2yDKwj8
+semM4q843337zbNfxHmladB1lpz2NqyxI175xMIJuDxogyZdsOxGnFAzAnthR4dqL/RW
+RWzjaxSB6IAO9SPYVVlrpZ+1hsjLW79fwXK/yc8VdhRuWTeQiRgYY2ek8+OKbOqz4Q==
+---- END SSH2 PUBLIC KEY ----
diff --git a/lib/ssh/test/ssh_bench_dev_null.erl b/lib/ssh/test/ssh_bench_dev_null.erl
new file mode 100644
index 0000000000..0e390b7712
--- /dev/null
+++ b/lib/ssh/test/ssh_bench_dev_null.erl
@@ -0,0 +1,58 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2005-2016. 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%
+%%
+
+%%
+
+%%% Description: Example ssh server
+-module(ssh_bench_dev_null).
+-behaviour(ssh_daemon_channel).
+
+-record(state, {
+          cm,
+          chid,
+          n,
+          sum = 0
+	 }).
+
+-export([init/1, handle_msg/2, handle_ssh_msg/2, terminate/2]).
+
+init([N]) -> {ok, #state{n=N}}.
+
+handle_msg({ssh_channel_up, ChId, CM}, S) -> 
+    {ok, S#state{cm = CM,
+                 chid = ChId}}.
+
+
+
+handle_ssh_msg({ssh_cm, CM, {data,ChId,0,Data}}, #state{n=N, sum=Sum0, cm=CM, chid=ChId} = S) -> 
+    Sum = Sum0 + size(Data),
+    if Sum == N ->
+            %% Got all
+            ssh_connection:send(CM, ChId, <<"READY">>),
+            {ok, S#state{sum=Sum}};
+       Sum < N ->
+            %% Expects more
+            {ok, S#state{sum=Sum}}
+    end;
+handle_ssh_msg({ssh_cm, _, {exit_signal,ChId,_,_,_}}, S) -> {stop, ChId, S};
+handle_ssh_msg({ssh_cm, _, {exit_status,ChId,_}    }, S) -> {stop, ChId, S};
+handle_ssh_msg({ssh_cm, _, _                       }, S) -> {ok, S}.
+
+terminate(_, _) -> ok.