Merge branch 'rickard/time_api/OTP-11997'

* rickard/time_api/OTP-11997: (22 commits)
  Update primary bootstrap
  inets: Suppress deprecated warning on erlang:now/0
  inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules
  inets: Update comments
  Suppress deprecated warning on erlang:now/0
  Use new time API and be back-compatible in inets Remove unused functions and removed redundant test
  asn1 test SUITE: Eliminate use of now/0
  Disable deprecated warning on erlang:now/0 in diameter_lib
  Use new time API and be back-compatible in ssh
  Replace all calls to now/0 in CT with new time API functions
  test_server: Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  otp_SUITE: Warn for calls to erlang:now/0
  Replace usage of erlang:now() with usage of new API
  Multiple timer wheels
  Erlang based BIF timer implementation for scalability
  Implement ethread events with timeout
  ...

Conflicts:
	bootstrap/bin/start.boot
	bootstrap/bin/start_clean.boot
	bootstrap/lib/compiler/ebin/beam_asm.beam
	bootstrap/lib/compiler/ebin/compile.beam
	bootstrap/lib/kernel/ebin/auth.beam
	bootstrap/lib/kernel/ebin/dist_util.beam
	bootstrap/lib/kernel/ebin/global.beam
	bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
	bootstrap/lib/kernel/ebin/inet_db.beam
	bootstrap/lib/kernel/ebin/inet_dns.beam
	bootstrap/lib/kernel/ebin/inet_res.beam
	bootstrap/lib/kernel/ebin/os.beam
	bootstrap/lib/kernel/ebin/pg2.beam
	bootstrap/lib/stdlib/ebin/dets.beam
	bootstrap/lib/stdlib/ebin/dets_utils.beam
	bootstrap/lib/stdlib/ebin/erl_tar.beam
	bootstrap/lib/stdlib/ebin/escript.beam
	bootstrap/lib/stdlib/ebin/file_sorter.beam
	bootstrap/lib/stdlib/ebin/otp_internal.beam
	bootstrap/lib/stdlib/ebin/qlc.beam
	bootstrap/lib/stdlib/ebin/random.beam
	bootstrap/lib/stdlib/ebin/supervisor.beam
	bootstrap/lib/stdlib/ebin/timer.beam
	erts/aclocal.m4
	erts/emulator/beam/bif.c
	erts/emulator/beam/erl_bif_info.c
	erts/emulator/beam/erl_db_hash.c
	erts/emulator/beam/erl_init.c
	erts/emulator/beam/erl_process.h
	erts/emulator/beam/erl_thr_progress.c
	erts/emulator/beam/utils.c
	erts/emulator/sys/unix/sys.c
	erts/preloaded/ebin/erlang.beam
	erts/preloaded/ebin/erts_internal.beam
	erts/preloaded/ebin/init.beam
	erts/preloaded/src/erts_internal.erl
	lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
	lib/diameter/src/base/diameter_lib.erl
	lib/kernel/src/os.erl
	lib/ssh/test/ssh_basic_SUITE.erl
	system/doc/efficiency_guide/advanced.xml

1 files changed, 10 insertions, 5 deletions

diff --git a/lib/common_test/test/ct_test_support.erl b/lib/common_test/test/ct_test_support.erl
index ca736fe400..ffef8187f3 100644
--- a/lib/common_test/test/ct_test_support.erl
+++ b/lib/common_test/test/ct_test_support.erl
@@ -287,10 +287,13 @@ run_ct_run_test(Opts,Config) ->
     Level = proplists:get_value(trace_level, Config),
     test_server:format(Level, "~n[RUN #1] Calling ct:run_test(~p) on ~p~n",
 		       [Opts, CTNode]),
-    T0 = now(),
+    
+    T0 = erlang:monotonic_time(),
     CtRunTestResult = rpc:call(CTNode, ct, run_test, [Opts]),
+    T1 = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(T1-T0, native, milli_seconds),
     test_server:format(Level, "~n[RUN #1] Got return value ~p after ~p ms~n",
-		       [CtRunTestResult,trunc(timer:now_diff(now(), T0)/1000)]),
+		       [CtRunTestResult,Elapsed]),
     case rpc:call(CTNode, erlang, whereis, [ct_util_server]) of
 	undefined ->
 	    ok;
@@ -313,10 +316,12 @@ run_ct_script_start(Opts, Config) ->
 	     [common_test, run_test_start_opts, Opts1]),
     test_server:format(Level, "[RUN #2] Calling ct_run:script_start() on ~p~n",
 		       [CTNode]),
-    T0 = now(),
+    T0 = erlang:monotonic_time(),
     ExitStatus = rpc:call(CTNode, ct_run, script_start, []),
+    T1 = erlang:monotonic_time(),
+    Elapsed = erlang:convert_time_unit(T1-T0, native, milli_seconds),
     test_server:format(Level, "[RUN #2] Got exit status value ~p after ~p ms~n",
-		       [ExitStatus,trunc(timer:now_diff(now(), T0)/1000)]),
+		       [ExitStatus,Elapsed]),
     ExitStatus.
 
 check_result({_Ok,Failed,{_UserSkipped,_AutoSkipped}},1,_Opts)
@@ -408,7 +413,7 @@ ct_rpc({M,F,A}, Config) ->
 %%%-----------------------------------------------------------------
 %%% random_error/1
 random_error(Config) when is_list(Config) ->
-    random:seed(now()),
+    random:seed(os:timestamp()),
     Gen = fun(0,_) -> ok; (N,Fun) -> Fun(N-1, Fun) end,
     Gen(random:uniform(100), Gen),