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authorHans Bolinder <[email protected]>2017-01-24 08:46:45 +0100
committerHans Bolinder <[email protected]>2017-02-03 08:58:01 +0100
commitc2a3a1cdf56009630532805f9bed830e2041427d (patch)
treec18c36f22cd225f48e5dbae1d1399048e70e58ad /lib/dialyzer
parent416711a87dcc937d78990ada5da0b8df98a8e1ee (diff)
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dialyzer: Do not spawn all workers at once
Spawning all worker processes at once has the potential to increase peak memory consumption. Therefore the implementation is now slightly modified: `20 * dialyzer_utils:parallelism()' processes are running in parallel. 20 i quite a big factor, but seems necessary to keep all schedulers busy according to the Observer application's Load Charts, with a 100 ms update interval.
Diffstat (limited to 'lib/dialyzer')
-rw-r--r--lib/dialyzer/src/dialyzer_callgraph.erl12
-rw-r--r--lib/dialyzer/src/dialyzer_coordinator.erl55
-rw-r--r--lib/dialyzer/src/dialyzer_succ_typings.erl8
-rw-r--r--lib/dialyzer/src/dialyzer_worker.erl42
4 files changed, 67 insertions, 50 deletions
diff --git a/lib/dialyzer/src/dialyzer_callgraph.erl b/lib/dialyzer/src/dialyzer_callgraph.erl
index 27249440e9..bb02bc8c0d 100644
--- a/lib/dialyzer/src/dialyzer_callgraph.erl
+++ b/lib/dialyzer/src/dialyzer_callgraph.erl
@@ -40,7 +40,7 @@
module_postorder_from_funs/2,
new/0,
get_depends_on/2,
- get_required_by/2,
+ %% get_required_by/2,
in_neighbours/2,
renew_race_info/4,
renew_race_code/2,
@@ -250,12 +250,12 @@ get_depends_on(SCC, #callgraph{active_digraph = {'e', Out, _In, Maps}}) ->
get_depends_on(SCC, #callgraph{active_digraph = {'d', DG}}) ->
digraph:out_neighbours(DG, SCC).
--spec get_required_by(scc() | module(), callgraph()) -> [scc()].
+%% -spec get_required_by(scc() | module(), callgraph()) -> [scc()].
-get_required_by(SCC, #callgraph{active_digraph = {'e', _Out, In, Maps}}) ->
- lookup_scc(SCC, In, Maps);
-get_required_by(SCC, #callgraph{active_digraph = {'d', DG}}) ->
- digraph:in_neighbours(DG, SCC).
+%% get_required_by(SCC, #callgraph{active_digraph = {'e', _Out, In, Maps}}) ->
+%% lookup_scc(SCC, In, Maps);
+%% get_required_by(SCC, #callgraph{active_digraph = {'d', DG}}) ->
+%% digraph:in_neighbours(DG, SCC).
lookup_scc(SCC, Table, Maps) ->
case ets_lookup_dict({'scc', SCC}, Maps) of
diff --git a/lib/dialyzer/src/dialyzer_coordinator.erl b/lib/dialyzer/src/dialyzer_coordinator.erl
index de239f5c93..7c1bc1de5a 100644
--- a/lib/dialyzer/src/dialyzer_coordinator.erl
+++ b/lib/dialyzer/src/dialyzer_coordinator.erl
@@ -76,6 +76,8 @@
active = 0 :: integer(),
result :: result(),
next_label = 0 :: integer(),
+ jobs :: [job()],
+ job_fun :: fun(),
init_data :: init_data(),
regulator :: regulator(),
scc_to_pid :: scc_to_pid()
@@ -108,16 +110,18 @@ spawn_jobs(Mode, Jobs, InitData, Timing) ->
false -> unused
end,
Coordinator = {Collector, Regulator, SCCtoPID},
- Fold =
- fun(Job, Count) ->
- Pid = dialyzer_worker:launch(Mode, Job, InitData, Coordinator),
- case TypesigOrDataflow of
- true -> true = ets:insert(SCCtoPID, {Job, Pid}), ok;
- false -> ok
- end,
- Count + 1
+ JobFun =
+ fun(Job) ->
+ Pid = dialyzer_worker:launch(Mode, Job, InitData, Coordinator),
+ case TypesigOrDataflow of
+ true -> true = ets:insert(SCCtoPID, {Job, Pid});
+ false -> true
+ end
end,
- JobCount = lists:foldl(Fold, 0, Jobs),
+ JobCount = length(Jobs),
+ NumberOfInitJobs = min(JobCount, 20 * dialyzer_utils:parallelism()),
+ {InitJobs, RestJobs} = lists:split(NumberOfInitJobs, Jobs),
+ lists:foreach(JobFun, InitJobs),
Unit =
case Mode of
'typesig' -> "SCCs";
@@ -129,11 +133,13 @@ spawn_jobs(Mode, Jobs, InitData, Timing) ->
'compile' -> dialyzer_analysis_callgraph:compile_init_result();
_ -> []
end,
- #state{mode = Mode, active = JobCount, result = InitResult, next_label = 0,
- init_data = InitData, regulator = Regulator, scc_to_pid = SCCtoPID}.
+ #state{mode = Mode, active = JobCount, result = InitResult,
+ next_label = 0, job_fun = JobFun, jobs = RestJobs,
+ init_data = InitData, regulator = Regulator, scc_to_pid = SCCtoPID}.
collect_result(#state{mode = Mode, active = Active, result = Result,
next_label = NextLabel, init_data = InitData,
+ jobs = JobsLeft, job_fun = JobFun,
regulator = Regulator, scc_to_pid = SCCtoPID} = State) ->
receive
{next_label_request, Estimation, Pid} ->
@@ -141,20 +147,35 @@ collect_result(#state{mode = Mode, active = Active, result = Result,
collect_result(State#state{next_label = NextLabel + Estimation});
{done, Job, Data} ->
NewResult = update_result(Mode, InitData, Job, Data, Result),
+ TypesigOrDataflow = (Mode =:= 'typesig') orelse (Mode =:= 'dataflow'),
case Active of
1 ->
kill_regulator(Regulator),
case Mode of
'compile' ->
{NewResult, NextLabel};
- X when X =:= 'typesig'; X =:= 'dataflow' ->
+ _ when TypesigOrDataflow ->
ets:delete(SCCtoPID),
NewResult;
'warnings' ->
NewResult
end;
N ->
- collect_result(State#state{result = NewResult, active = N - 1})
+ case TypesigOrDataflow of
+ true -> true = ets:delete(SCCtoPID, Job);
+ false -> true
+ end,
+ NewJobsLeft =
+ case JobsLeft of
+ [] -> [];
+ [NewJob|JobsLeft1] ->
+ JobFun(NewJob),
+ JobsLeft1
+ end,
+ NewState = State#state{result = NewResult,
+ jobs = NewJobsLeft,
+ active = N - 1},
+ collect_result(NewState)
end
end.
@@ -176,8 +197,12 @@ sccs_to_pids(SCCs, {_Collector, _Regulator, SCCtoPID}) ->
Fold =
fun(SCC, Pids) ->
%% The SCCs that SCC depends on have always been started.
- Result = ets:lookup_element(SCCtoPID, SCC, 2),
- [Result|Pids]
+ try ets:lookup_element(SCCtoPID, SCC, 2) of
+ Pid when is_pid(Pid) ->
+ [Pid|Pids]
+ catch
+ _:_ -> Pids
+ end
end,
lists:foldl(Fold, [], SCCs).
diff --git a/lib/dialyzer/src/dialyzer_succ_typings.erl b/lib/dialyzer/src/dialyzer_succ_typings.erl
index 3c90f46e95..be685baf22 100644
--- a/lib/dialyzer/src/dialyzer_succ_typings.erl
+++ b/lib/dialyzer/src/dialyzer_succ_typings.erl
@@ -29,7 +29,7 @@
-export([
find_succ_types_for_scc/2,
refine_one_module/2,
- find_required_by/2,
+ %% find_required_by/2,
find_depends_on/2,
collect_warnings/2,
lookup_names/2
@@ -236,10 +236,10 @@ refine_succ_typings(Modules, #st{codeserver = Codeserver,
find_depends_on(SCC, {_Codeserver, Callgraph, _Plt, _Solvers}) ->
dialyzer_callgraph:get_depends_on(SCC, Callgraph).
--spec find_required_by(scc() | module(), fixpoint_init_data()) -> [scc()].
+%% -spec find_required_by(scc() | module(), fixpoint_init_data()) -> [scc()].
-find_required_by(SCC, {_Codeserver, Callgraph, _Plt, _Solvers}) ->
- dialyzer_callgraph:get_required_by(SCC, Callgraph).
+%% find_required_by(SCC, {_Codeserver, Callgraph, _Plt, _Solvers}) ->
+%% dialyzer_callgraph:get_required_by(SCC, Callgraph).
-spec lookup_names([label()], fixpoint_init_data()) -> [mfa_or_funlbl()].
diff --git a/lib/dialyzer/src/dialyzer_worker.erl b/lib/dialyzer/src/dialyzer_worker.erl
index 1a251b5307..af0f2e9e08 100644
--- a/lib/dialyzer/src/dialyzer_worker.erl
+++ b/lib/dialyzer/src/dialyzer_worker.erl
@@ -56,10 +56,14 @@ launch(Mode, Job, InitData, Coordinator) ->
%%--------------------------------------------------------------------
-init(#state{job = SCC, mode = Mode, init_data = InitData} = State) when
+init(#state{job = SCC, mode = Mode, init_data = InitData,
+ coordinator = Coordinator} = State) when
Mode =:= 'typesig'; Mode =:= 'dataflow' ->
- DependsOn = dialyzer_succ_typings:find_depends_on(SCC, InitData),
- ?debug("Deps ~p: ~p\n",[SCC, DependsOn]),
+ DependsOnSCCs = dialyzer_succ_typings:find_depends_on(SCC, InitData),
+ ?debug("~w: Deps ~p: ~p\n", [self(), SCC, DependsOnSCCs]),
+ Pids = dialyzer_coordinator:sccs_to_pids(DependsOnSCCs, Coordinator),
+ ?debug("~w: PidsDeps ~p\n", [self(), Pids]),
+ DependsOn = [{Pid, erlang:monitor(process, Pid)} || Pid <- Pids],
loop(updating, State#state{depends_on = DependsOn});
init(#state{mode = Mode} = State) when
Mode =:= 'compile'; Mode =:= 'warnings' ->
@@ -67,7 +71,7 @@ init(#state{mode = Mode} = State) when
loop(updating, #state{mode = Mode} = State) when
Mode =:= 'typesig'; Mode =:= 'dataflow' ->
- ?debug("Update: ~p\n",[State#state.job]),
+ ?debug("~w: Update: ~p\n", [self(), State#state.job]),
NextStatus =
case waits_more_success_typings(State) of
true -> waiting;
@@ -76,11 +80,11 @@ loop(updating, #state{mode = Mode} = State) when
loop(NextStatus, State);
loop(waiting, #state{mode = Mode} = State) when
Mode =:= 'typesig'; Mode =:= 'dataflow' ->
- ?debug("Wait: ~p\n",[State#state.job]),
+ ?debug("~w: Wait: ~p\n", [self(), State#state.job]),
NewState = wait_for_success_typings(State),
loop(updating, NewState);
loop(running, #state{mode = 'compile'} = State) ->
- dialyzer_coordinator:request_activation(State#state.coordinator),
+ request_activation(State),
?debug("Compile: ~s\n",[State#state.job]),
Result =
case start_compilation(State) of
@@ -92,40 +96,28 @@ loop(running, #state{mode = 'compile'} = State) ->
end,
report_to_coordinator(Result, State);
loop(running, #state{mode = 'warnings'} = State) ->
- dialyzer_coordinator:request_activation(State#state.coordinator),
+ request_activation(State),
?debug("Warning: ~s\n",[State#state.job]),
Result = collect_warnings(State),
report_to_coordinator(Result, State);
loop(running, #state{mode = Mode} = State) when
Mode =:= 'typesig'; Mode =:= 'dataflow' ->
request_activation(State),
- ?debug("Run: ~p\n",[State#state.job]),
+ ?debug("~w: Run: ~p\n", [self(), State#state.job]),
NotFixpoint = do_work(State),
- ok = broadcast_done(State),
report_to_coordinator(NotFixpoint, State).
waits_more_success_typings(#state{depends_on = Depends}) ->
Depends =/= [].
-broadcast_done(#state{job = SCC, init_data = InitData,
- coordinator = Coordinator}) ->
- RequiredBy = dialyzer_succ_typings:find_required_by(SCC, InitData),
- Callers = dialyzer_coordinator:sccs_to_pids(RequiredBy, Coordinator),
- send_done(Callers, SCC).
-
-send_done(Callers, SCC) ->
- ?debug("Sending ~p: ~p\n",[SCC, Callers]),
- SendSTFun = fun(PID) -> PID ! {done, SCC} end,
- lists:foreach(SendSTFun, Callers).
-
wait_for_success_typings(#state{depends_on = DependsOn} = State) ->
receive
- {done, SCC} ->
- ?debug("GOT ~p: ~p\n",[State#state.job, SCC]),
- State#state{depends_on = DependsOn -- [SCC]}
+ {'DOWN', Ref, process, Pid, _Info} ->
+ ?debug("~w: ~p got DOWN: ~p\n", [self(), State#state.job, Pid]),
+ State#state{depends_on = DependsOn -- [{Pid, Ref}]}
after
5000 ->
- ?debug("Still Waiting ~p: ~p\n",[State#state.job, DependsOn]),
+ ?debug("~w: Still Waiting ~p:\n ~p\n", [self(), State#state.job, DependsOn]),
State
end.
@@ -139,7 +131,7 @@ do_work(#state{mode = Mode, job = Job, init_data = InitData}) ->
end.
report_to_coordinator(Result, #state{job = Job, coordinator = Coordinator}) ->
- ?debug("Done: ~p\n",[Job]),
+ ?debug("~w: Done: ~p\n",[self(), Job]),
dialyzer_coordinator:job_done(Job, Result, Coordinator).
start_compilation(#state{job = Job, init_data = InitData}) ->