diff options
Diffstat (limited to 'lib/mnesia/examples/bench')
| -rw-r--r-- | lib/mnesia/examples/bench/bench_generate.erl | 40 |
1 files changed, 18 insertions, 22 deletions
diff --git a/lib/mnesia/examples/bench/bench_generate.erl b/lib/mnesia/examples/bench/bench_generate.erl index 7a701812a7..e838f07fbb 100644 --- a/lib/mnesia/examples/bench/bench_generate.erl +++ b/lib/mnesia/examples/bench/bench_generate.erl @@ -153,9 +153,7 @@ generator_init(Monitor, C) -> process_flag(trap_exit, true), Tables = mnesia:system_info(tables), ok = mnesia:wait_for_tables(Tables, infinity), - {_Mega, Sec, Micro} = erlang:now(), - Uniq = lists:sum(binary_to_list(term_to_binary(make_ref()))), - random:seed(Uniq, Sec, Micro), + rand:seed(exsplus), Counters = reset_counters(C, C#config.statistics_detail), SessionTab = ets:new(bench_sessions, [public, {keypos, 1}]), generator_loop(Monitor, C, SessionTab, Counters). @@ -189,9 +187,9 @@ generator_loop(Monitor, C, SessionTab, Counters) -> after 0 -> {Name, {Nodes, Activity, Wlock}, Fun, CommitSessions} = gen_trans(C, SessionTab), - Before = erlang:now(), + Before = erlang:monotonic_time(), Res = call_worker(Nodes, Activity, Fun, Wlock, mnesia_frag), - After = erlang:now(), + After = erlang:monotonic_time(), Elapsed = elapsed(Before, After), post_eval(Monitor, C, Elapsed, Res, Name, CommitSessions, SessionTab, Counters) end. @@ -253,10 +251,8 @@ worker_loop(Parent) -> end. -elapsed({Before1, Before2, Before3}, {After1, After2, After3}) -> - After = After1 * 1000000000000 + After2 * 1000000 + After3, - Before = Before1 * 1000000000000 + Before2 * 1000000 + Before3, - After - Before. +elapsed(Before, After) -> + erlang:convert_time_unit(After-Before, native, micro_seconds). %% Lookup counters get_counters(_C, {table, Tab}) -> @@ -351,7 +347,7 @@ commit_session(Fun) when is_function(Fun, 0) -> %% Randlomly choose a transaction type according to benchmar spec gen_trans(C, SessionTab) when C#config.generator_profile == random -> - case random:uniform(100) of + case rand:uniform(100) of Rand when Rand > 0, Rand =< 25 -> gen_t1(C, SessionTab); Rand when Rand > 25, Rand =< 50 -> gen_t2(C, SessionTab); Rand when Rand > 50, Rand =< 70 -> gen_t3(C, SessionTab); @@ -369,7 +365,7 @@ gen_trans(C, SessionTab) -> end. gen_t1(C, _SessionTab) -> - SubscrId = random:uniform(C#config.n_subscribers) - 1, + SubscrId = rand:uniform(C#config.n_subscribers) - 1, SubscrKey = bench_trans:number_to_key(SubscrId, C), Location = 4711, ChangedBy = <<4711:(8*25)>>, @@ -381,7 +377,7 @@ gen_t1(C, _SessionTab) -> }. gen_t2(C, _SessionTab) -> - SubscrId = random:uniform(C#config.n_subscribers) - 1, + SubscrId = rand:uniform(C#config.n_subscribers) - 1, SubscrKey = bench_trans:number_to_key(SubscrId, C), {t2, nearest_node(SubscrId, sync_dirty, C), @@ -395,9 +391,9 @@ gen_t3(C, SessionTab) -> '$end_of_table' -> %% This generator does not have any session, %% try reading someone elses session details - SubscrId = random:uniform(C#config.n_subscribers) - 1, + SubscrId = rand:uniform(C#config.n_subscribers) - 1, SubscrKey = bench_trans:number_to_key(SubscrId, C), - ServerId = random:uniform(C#config.n_servers) - 1, + ServerId = rand:uniform(C#config.n_servers) - 1, ServerBit = 1 bsl ServerId, {t3, nearest_node(SubscrId, transaction, C), @@ -419,12 +415,12 @@ gen_t4(C, SessionTab) -> %% This generator may already have sessions, %% create a new session and hope that no other %% generator already has occupied it - SubscrId = random:uniform(C#config.n_subscribers) - 1, + SubscrId = rand:uniform(C#config.n_subscribers) - 1, SubscrKey = bench_trans:number_to_key(SubscrId, C), - ServerId = random:uniform(C#config.n_servers) - 1, + ServerId = rand:uniform(C#config.n_servers) - 1, ServerBit = 1 bsl ServerId, Details = <<4711:(8*2000)>>, - DoRollback = (random:uniform(100) =< 2), + DoRollback = (rand:uniform(100) =< 2), Insert = fun() -> ets:insert(SessionTab, {{SubscrId, SubscrKey, ServerId}, self()}) end, {t4, nearest_node(SubscrId, transaction, C), @@ -437,11 +433,11 @@ gen_t5(C, SessionTab) -> '$end_of_table' -> %% This generator does not have any session, %% try to delete someone elses session details - SubscrId = random:uniform(C#config.n_subscribers) - 1, + SubscrId = rand:uniform(C#config.n_subscribers) - 1, SubscrKey = bench_trans:number_to_key(SubscrId, C), - ServerId = random:uniform(C#config.n_servers) - 1, + ServerId = rand:uniform(C#config.n_servers) - 1, ServerBit = 1 bsl ServerId, - DoRollback = (random:uniform(100) =< 2), + DoRollback = (rand:uniform(100) =< 2), {t5, nearest_node(SubscrId, transaction, C), fun(Wlock) -> bench_trans:delete_session_from_server(Wlock, SubscrKey, ServerBit, ServerId, DoRollback) end, @@ -451,7 +447,7 @@ gen_t5(C, SessionTab) -> %% This generator do have at least one session, %% delete it. ServerBit = 1 bsl ServerId, - DoRollback = (random:uniform(100) =< 2), + DoRollback = (rand:uniform(100) =< 2), Delete = fun() -> ets:delete(SessionTab, {SubscrId, SubscrKey, ServerId}) end, {t5, nearest_node(SubscrId, transaction, C), @@ -461,7 +457,7 @@ gen_t5(C, SessionTab) -> end. gen_ping(C, _SessionTab) -> - SubscrId = random:uniform(C#config.n_subscribers) - 1, + SubscrId = rand:uniform(C#config.n_subscribers) - 1, {ping, nearest_node(SubscrId, transaction, C), fun(_Wlock) -> {do_commit, true, []} end, |