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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2001-2009. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%% File : bench.hrl
+%%% Author : Hakan Mattsson <[email protected]>
+%%% Purpose : Implement the Canadian database benchmark (LMC/UU-01:025)
+%%% Created : 21 Jun 2001 by Hakan Mattsson <[email protected]>
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+-module(bench).
+-author('[email protected]').
+
+-include("bench.hrl").
+
+-export([
+ run/0, run/1,
+
+ start_all/0, start_all/1,
+ populate/0, populate/1,
+ generate/0, generate/1,
+
+ args_to_config/1, verify_config/2,
+ start/0, start/1,
+ stop_slave_nodes/1,
+ bind_schedulers/0
+ ]).
+
+bind_schedulers() ->
+ try
+ %% Avoid first core and bind schedules to the remaining ones
+ Topo = erlang:system_info(cpu_topology),
+ erlang:system_flag(cpu_topology,lists:reverse(Topo)),
+ %% N = erlang:system_info(schedulers),
+ %% erlang:system_flag(schedulers_online, lists:max([N - 1, 1])),
+ erlang:system_flag(scheduler_bind_type, default_bind),
+ timer:sleep(timer:seconds(1)), % Wait for Rickard
+ erlang:system_info(scheduler_bindings)
+ catch _:_ ->
+ %% Ancient systems
+ ignore
+ end.
+
+%% Run the benchmark:
+%%
+%% - Start all necessary Erlang nodes
+%% - Populate the database
+%% - Start the traffic generators
+%% - Calculate benchmark statistics
+%% - Stop the temporary Erlang nodes
+run() ->
+ FileName = "bench.config",
+ run([FileName]).
+
+run(Args) ->
+ C = args_to_config(Args),
+ SlaveNodes = start_all(C),
+ bench_populate:start(C),
+ Result = bench_generate:start(C),
+ stop_slave_nodes(SlaveNodes),
+ Result.
+
+%% Start Mnesia on the local node
+start() ->
+ FileName = 'bench.config',
+ start([FileName]).
+
+start(Args) ->
+ C = args_to_config(Args),
+ erlang:set_cookie(node(), C#config.cookie),
+ Nodes = [node() | (((C#config.table_nodes -- C#config.generator_nodes) ++
+ C#config.generator_nodes) -- [node()])],
+ Extra = [{extra_db_nodes, Nodes}],
+ ?d("Starting Mnesia on node ~p...", [node()]),
+ case mnesia:start(Extra) of
+ ok ->
+ Tables = mnesia:system_info(tables),
+ io:format(" ok.~n" , []),
+ ?d("Waiting for ~p tables...", [length(Tables)]),
+ wait(Tables);
+ {error, Reason} ->
+ io:format(" FAILED: ~p~n", [Reason]),
+ {error, Reason}
+ end.
+
+wait(Tables) ->
+ case mnesia:wait_for_tables(Tables, timer:seconds(10)) of
+ ok ->
+ io:format(" loaded.~n", []),
+ ok;
+ {timeout, More} ->
+ io:format(" ~p...", [length(More)]),
+ wait(More)
+ end.
+
+%% Populate the database
+populate() ->
+ FileName = 'bench.config',
+ populate([FileName]).
+
+populate(Args) ->
+ C = args_to_config(Args),
+ bench_populate:start(C).
+
+%% Start the traffic generators
+generate() ->
+ FileName = 'bench.config',
+ generate([FileName]).
+
+generate(Args) ->
+ C = args_to_config(Args),
+ bench_generate:start(C).
+
+start_all() ->
+ FileName = 'bench.config',
+ start_all([FileName]).
+
+start_all(Args) ->
+ C = args_to_config(Args),
+ Nodes = [node() | (((C#config.table_nodes -- C#config.generator_nodes) ++
+ C#config.generator_nodes) -- [node()])],
+ erlang:set_cookie(node(), C#config.cookie),
+ ?d("Starting Erlang nodes...~n", []),
+ ?d("~n", []),
+ SlaveNodes = do_start_all(Nodes, [], C#config.cookie),
+ Extra = [{extra_db_nodes, Nodes}],
+ ?d("~n", []),
+ ?d("Starting Mnesia...", []),
+ case rpc:multicall(Nodes, mnesia, start, [Extra]) of
+ {Replies, []} ->
+ case [R || R <- Replies, R /= ok] of
+ [] ->
+ io:format(" ok~n", []),
+ SlaveNodes;
+ Bad ->
+ io:format(" FAILED: ~p~n", [Bad]),
+ exit({mnesia_start, Bad})
+ end;
+ Bad ->
+ io:format(" FAILED: ~p~n", [Bad]),
+ exit({mnesia_start, Bad})
+ end.
+
+do_start_all([Node | Nodes], Acc, Cookie) when is_atom(Node) ->
+ case string:tokens(atom_to_list(Node), [$@]) of
+ [Name, Host] ->
+ Arg = lists:concat(["-setcookie ", Cookie]),
+ ?d(" ~s", [left(Node)]),
+ case slave:start_link(Host, Name, Arg) of
+ {ok, Node} ->
+ load_modules(Node),
+ rpc:call(Node, ?MODULE, bind_schedulers, []),
+ io:format(" started~n", []),
+ do_start_all(Nodes, [Node | Acc], Cookie);
+ {error, {already_running, Node}} ->
+ rpc:call(Node, ?MODULE, bind_schedulers, []),
+ io:format(" already started~n", []),
+ do_start_all(Nodes, Acc, Cookie);
+ {error, Reason} ->
+ io:format(" FAILED:~p~n", [Reason]),
+ stop_slave_nodes(Acc),
+ exit({slave_start_failed, Reason})
+ end;
+ _ ->
+ ?d(" ~s FAILED: "
+ "Not valid as node name. Must be 'name@host'.~n",
+ [left(Node)]),
+ stop_slave_nodes(Acc),
+ exit({bad_node_name, Node})
+ end;
+do_start_all([], StartedNodes, _Cookie) ->
+ StartedNodes.
+
+load_modules(Node) ->
+ Fun =
+ fun(Mod) ->
+ case code:get_object_code(Mod) of
+ {_Module, Bin, Fname} ->
+ rpc:call(Node, code,load_binary,[Mod,Fname,Bin]);
+ Other ->
+ Other
+ end
+ end,
+ lists:foreach(Fun, [bench, bench_generate, bench_populate, bench_trans]).
+
+stop_slave_nodes([]) ->
+ ok;
+stop_slave_nodes(Nodes) ->
+ ?d("~n", []),
+ ?d("Stopping Erlang nodes...~n", []),
+ ?d("~n", []),
+ do_stop_slave_nodes(Nodes).
+
+do_stop_slave_nodes([Node | Nodes]) ->
+ ?d(" ~s", [left(Node)]),
+ Res = slave:stop(Node),
+ io:format(" ~p~n", [Res]),
+ do_stop_slave_nodes(Nodes);
+do_stop_slave_nodes([]) ->
+ ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% The configuration
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+args_to_config(C) when is_record(C, config) ->
+ C;
+args_to_config(Args) when is_list(Args) ->
+ do_args_to_config(Args, []).
+
+do_args_to_config([{Key, Val} | Rest], Acc) when is_list(Acc) ->
+ do_args_to_config(Rest, Acc ++ [{Key, Val}]);
+do_args_to_config([FileName | Rest], Acc) when is_list(Acc) ->
+ io:nl(),
+ ?d("Reading configuration file ~p...", [FileName]),
+ case file:consult(FileName) of
+ {ok, Config} ->
+ io:format(" ok~n", []),
+ do_args_to_config(Rest, Acc ++ Config);
+ {error, Reason} ->
+ io:format(" FAILED: ~s~n",
+ [[lists:flatten(file:format_error( Reason))]]),
+ {error, {args_to_config, FileName, Reason}}
+ end;
+do_args_to_config([], Acc) when is_list(Acc) ->
+ verify_config(Acc, #config{}).
+
+verify_config([{Tag, Val} | T], C) ->
+ case Tag of
+ cookie when is_atom(Val) ->
+ verify_config(T, C#config{cookie = Val});
+ generator_profile when Val == random ->
+ verify_config(T, C#config{generator_profile = Val});
+ generator_profile when Val == t1 ->
+ verify_config(T, C#config{generator_profile = Val});
+ generator_profile when Val == t2 ->
+ verify_config(T, C#config{generator_profile = Val});
+ generator_profile when Val == t3 ->
+ verify_config(T, C#config{generator_profile = Val});
+ generator_profile when Val == t4 ->
+ verify_config(T, C#config{generator_profile = Val});
+ generator_profile when Val == t5 ->
+ verify_config(T, C#config{generator_profile = Val});
+ generator_profile when Val == ping ->
+ verify_config(T, C#config{generator_profile = Val});
+ generator_nodes when is_list(Val) ->
+ verify_config(T, C#config{generator_nodes = Val});
+ n_generators_per_node when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{n_generators_per_node = Val});
+ generator_warmup when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{generator_warmup = Val});
+ generator_duration when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{generator_duration = Val});
+ generator_cooldown when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{generator_cooldown = Val});
+ statistics_detail when Val == debug ->
+ verify_config(T, C#config{statistics_detail = Val});
+ statistics_detail when Val == debug2 ->
+ verify_config(T, C#config{statistics_detail = Val});
+ statistics_detail when Val == normal ->
+ verify_config(T, C#config{statistics_detail = Val});
+ table_nodes when is_list(Val) ->
+ verify_config(T, C#config{table_nodes = Val});
+ use_binary_subscriber_key when Val == true ->
+ verify_config(T, C#config{use_binary_subscriber_key = Val});
+ use_binary_subscriber_key when Val == false ->
+ verify_config(T, C#config{use_binary_subscriber_key = Val});
+ storage_type when is_atom(Val) ->
+ verify_config(T, C#config{storage_type = Val});
+ write_lock_type when Val == sticky_write ->
+ verify_config(T, C#config{write_lock_type = Val});
+ write_lock_type when Val == write ->
+ verify_config(T, C#config{write_lock_type = Val});
+ n_replicas when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{n_replicas = Val});
+ n_fragments when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{n_fragments = Val});
+ n_subscribers when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{n_subscribers = Val});
+ n_groups when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{n_groups = Val});
+ n_servers when is_integer(Val), Val >= 0 ->
+ verify_config(T, C#config{n_servers = Val});
+ always_try_nearest_node when Val == true; Val == false ->
+ verify_config(T, C#config{always_try_nearest_node = Val});
+ _ ->
+ ?e("Bad config value: ~p~n", [Tag, Val]),
+ exit({bad_config_value, {Tag, Val}})
+ end;
+verify_config([], C) ->
+ display_config(C),
+ C;
+verify_config(Config, _) ->
+ ?e("Bad config: ~p~n", [Config]),
+ exit({bad_config, Config}).
+
+display_config(C) when is_record(C, config) ->
+ ?d("~n", []),
+ ?d("Actual configuration...~n", []),
+ ?d("~n", []),
+ Fields = record_info(fields, config),
+ [config | Values] = tuple_to_list(C),
+ display_config(Fields, Values).
+
+display_config([F | Fields], [V | Values]) ->
+ ?d(" ~s ~p~n", [left(F), V]),
+ display_config(Fields, Values);
+display_config([], []) ->
+ ?d("~n", []),
+ ok.
+
+left(Term) ->
+ string:left(lists:flatten(io_lib:format("~p", [Term])), 27, $.).
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