diff options
Diffstat (limited to 'lib/mnesia/test/mnesia_cost.erl')
-rw-r--r-- | lib/mnesia/test/mnesia_cost.erl | 63 |
1 files changed, 1 insertions, 62 deletions
diff --git a/lib/mnesia/test/mnesia_cost.erl b/lib/mnesia/test/mnesia_cost.erl index a3fc8dfe20..4d0dd7b0ee 100644 --- a/lib/mnesia/test/mnesia_cost.erl +++ b/lib/mnesia/test/mnesia_cost.erl @@ -20,7 +20,7 @@ %% -module(mnesia_cost). --compile(export_all). +-export([go/0, go/1]). %% This code exercises the mnesia system and produces a bunch %% of measurements on what various things cost @@ -156,64 +156,3 @@ do_dirty(I, F) when I /= 0 -> F(), do_dirty(I-1, F); do_dirty(_,_) -> ok. - - - -table_load([N1,N2| _ ] = Ns) -> - Nodes = [N1,N2], - rpc:multicall(Ns, mnesia, lkill, []), - ok = mnesia:delete_schema(Ns), - ok = mnesia:create_schema(Nodes), - rpc:multicall(Nodes, mnesia, start, []), - TabDef = [{disc_copies,[N1]},{ram_copies,[N2]}, - {attributes,record_info(fields,item)},{record_name,item}], - Tabs = [list_to_atom("tab" ++ integer_to_list(I)) || I <- lists:seq(1,400)], - - [mnesia:create_table(Tab,TabDef) || Tab <- Tabs], - -%% InitTab = fun(Tab) -> -%% mnesia:write_lock_table(Tab), -%% InitRec = fun(Key) -> mnesia:write(Tab,#item{a=Key},write) end, -%% lists:foreach(InitRec, lists:seq(1,100)) -%% end, -%% -%% {Time,{atomic,ok}} = timer:tc(mnesia,transaction, [fun() ->lists:foreach(InitTab, Tabs) end]), - mnesia:dump_log(), -%% io:format("Init took ~p msec ~n", [Time/1000]), - rpc:call(N2, mnesia, stop, []), timer:sleep(1000), - mnesia:stop(), timer:sleep(500), - %% Warmup - ok = mnesia:start([{no_table_loaders, 1}]), - timer:tc(mnesia, wait_for_tables, [Tabs, infinity]), - mnesia:dump_log(), - rpc:call(N2, mnesia, dump_log, []), - io:format("Initialized ~n",[]), - - mnesia:stop(), timer:sleep(1000), - ok = mnesia:start([{no_table_loaders, 1}]), - {T1, ok} = timer:tc(mnesia, wait_for_tables, [Tabs, infinity]), - io:format("Loading from disc with 1 loader ~p msec~n",[T1/1000]), - mnesia:stop(), timer:sleep(1000), - ok = mnesia:start([{no_table_loaders, 4}]), - {T2, ok} = timer:tc(mnesia, wait_for_tables, [Tabs, infinity]), - io:format("Loading from disc with 4 loader ~p msec~n",[T2/1000]), - - %% Warmup - rpc:call(N2, ?MODULE, remote_load, [Tabs,4]), - io:format("Initialized ~n",[]), - - - T3 = rpc:call(N2, ?MODULE, remote_load, [Tabs,1]), - io:format("Loading from net with 1 loader ~p msec~n",[T3/1000]), - - T4 = rpc:call(N2, ?MODULE, remote_load, [Tabs,4]), - io:format("Loading from net with 4 loader ~p msec~n",[T4/1000]), - - ok. - -remote_load(Tabs,Loaders) -> - ok = mnesia:start([{no_table_loaders, Loaders}]), -%% io:format("~p ~n", [mnesia_controller:get_info(500)]), - {Time, ok} = timer:tc(mnesia, wait_for_tables, [Tabs, infinity]), - timer:sleep(1000), mnesia:stop(), timer:sleep(1000), - Time. |