diff options
Diffstat (limited to 'lib/mnesia/examples/mnesia_tpcb.erl')
| -rw-r--r-- | lib/mnesia/examples/mnesia_tpcb.erl | 39 |
1 files changed, 12 insertions, 27 deletions
diff --git a/lib/mnesia/examples/mnesia_tpcb.erl b/lib/mnesia/examples/mnesia_tpcb.erl index fde6cf402e..c6eda1c448 100644 --- a/lib/mnesia/examples/mnesia_tpcb.erl +++ b/lib/mnesia/examples/mnesia_tpcb.erl @@ -164,7 +164,7 @@ -record(history, { history_id = {0, 0}, % {DriverId, DriverLocalHistoryid} - time_stamp = now(), % Time point during active transaction + time_stamp = erlang:system_time(), % Time point during active transaction branch_id = 0, % Branch associated with teller teller_id = 0, % Teller invlolved in transaction account_id = 0, % Account updated by transaction @@ -412,9 +412,8 @@ config(remote_frag2_test, ReplicaType) -> config(conflict_benchmark, ReplicaType) -> Remote = nodes(), Local = node(), - Nodes = [Local | Remote], - [{seed, {1326,448637,337711}}, - {db_nodes, Nodes}, + Nodes = [Local | Remote], + [{db_nodes, Nodes}, {driver_nodes, Nodes}, {replica_nodes, Nodes}, {n_drivers_per_node, 10}, @@ -758,7 +757,7 @@ reporter_init(Starter, RC) -> replica_type = Type }, Drivers = start_drivers(RC, TC), - Now = now_to_micros(erlang:now()), + Now = erlang:monotonic_time(), State = #reporter_state{driver_pids = Drivers, run_config = RC, starter_pid = Starter, @@ -896,7 +895,7 @@ add_time(Acc, New) -> -define(AVOID_DIV_ZERO(_What_), try (_What_) catch _:_ -> 0 end). show_report(State) -> - Now = now_to_micros(erlang:now()), + Now = erlang:timestamp(), Iters = State#reporter_state.n_iters, Cfg = State#reporter_state.run_config, Time = State#reporter_state.curr, @@ -924,14 +923,14 @@ show_report(State) -> case Cfg#run_config.send_bench_report of true -> ct_event:notify( - #event{name = benchmark_data, + #event{name = benchmark_data, data = [{suite,"mnesia_tpcb"}, {value,Tps}]}); _ -> ok end, - State#reporter_state{prev_tps = Tps, prev_micros = Now}. + State#reporter_state{prev_tps = Tps, prev_micros = Now}. signed_diff(Iters, Curr, Prev) -> case Iters > 1 of @@ -941,11 +940,6 @@ signed_diff(Iters, Curr, Prev) -> sign(N) when N > 0 -> {"+", N}; sign(N) -> {"", N}. - -now_to_micros({Mega, Secs, Micros}) -> - DT = calendar:now_to_datetime({Mega, Secs, 0}), - S = calendar:datetime_to_gregorian_seconds(DT), - (S * ?SECOND) + Micros. start_drivers(RC, TC) -> LastHistoryId = table_info(history, size), @@ -998,13 +992,11 @@ alloc_local_branches([], Specs, OrphanBranches) -> {Specs, OrphanBranches}. driver_init(DS, AllBranches) -> - case (DS#driver_state.run_config)#run_config.seed of - undefined -> - Seed = erlang:now(); - Seed -> - Seed + Seed = case (DS#driver_state.run_config)#run_config.seed of + undefined -> rand:seed(exsplus); + ExpSeed -> rand:seed(ExpSeed) end, - + DS2 = if DS#driver_state.n_local_branches =:= 0 -> @@ -1058,14 +1050,7 @@ calc_trans(DS) -> %% Generate teller_id, account_id and delta %% Time the TPC-B transaction time_trans(DS) -> - OldSeed = get(random_seed), % Avoid interference with Mnesia - put(random_seed, DS#driver_state.seed), - Random = random:uniform(), - NewSeed = get(random_seed), - case OldSeed of - undefined -> erase(random_seed); - _ -> put(random_seed, OldSeed) - end, + {Random, NewSeed} = rand:uniform_s(DS#driver_state.seed), TC = DS#driver_state.tab_config, RC = DS#driver_state.run_config, |