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authorAnders Svensson <[email protected]>2014-09-09 18:31:17 +0200
committerAnders Svensson <[email protected]>2014-09-09 18:31:17 +0200
commite241a0a3101417d0bd40b3abf46f32fda6a0d4c9 (patch)
tree39f3cc78796d35859c8fe475b5edf9a47c12e07a /lib/diameter/src
parentebd23a3de8418fd70a8d12dfc90bce0fa283f4e5 (diff)
parentea2f229a0335aaaa1a5fcfb8eec0c7881cfdf7bb (diff)
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Merge branch 'anders/diameter/info/OTP-12069' into maint
* anders/diameter/info/OTP-12069: Map binary process info to a reference/byte count Add info item for diameter:service_info/2 Add (process) info tuple to diameter:service_info/2 Add diameter_dbg:sizes/0 Tweak comments
Diffstat (limited to 'lib/diameter/src')
-rw-r--r--lib/diameter/src/base/diameter_service.erl65
-rw-r--r--lib/diameter/src/info/diameter_dbg.erl38
2 files changed, 82 insertions, 21 deletions
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl
index b7cd311e02..ab56ca9cef 100644
--- a/lib/diameter/src/base/diameter_service.erl
+++ b/lib/diameter/src/base/diameter_service.erl
@@ -1573,7 +1573,8 @@ transports(#state{watchdogT = WatchdogT}) ->
-define(OTHER_INFO, [connections,
name,
peers,
- statistics]).
+ statistics,
+ info]).
service_info(Item, S)
when is_atom(Item) ->
@@ -1663,6 +1664,7 @@ complete_info(Item, #state{service = Svc} = S) ->
keys -> ?ALL_INFO ++ ?CAP_INFO ++ ?OTHER_INFO;
all -> service_info(?ALL_INFO, S);
statistics -> info_stats(S);
+ info -> info_info(S);
connections -> info_connections(S);
peers -> info_peers(S)
end.
@@ -1745,12 +1747,11 @@ peer_acc(PeerT, Acc, #watchdog{pid = Pid,
state = WS,
started = At,
peer = TPid}) ->
- dict:append(Ref,
- [{type, Type},
- {options, Opts},
- {watchdog, {Pid, At, WS}}
- | info_peer(PeerT, TPid, WS)],
- Acc).
+ Info = [{type, Type},
+ {options, Opts},
+ {watchdog, {Pid, At, WS}}
+ | info_peer(PeerT, TPid, WS)],
+ dict:append(Ref, Info ++ [{info, info_process_info(Info)}], Acc).
info_peer(PeerT, TPid, WS)
when is_pid(TPid), WS /= ?WD_DOWN ->
@@ -1762,6 +1763,49 @@ info_peer(PeerT, TPid, WS)
info_peer(_, _, _) ->
[].
+info_process_info(Info) ->
+ lists:flatmap(fun ipi/1, Info).
+
+ipi({watchdog, {Pid, _, _}}) ->
+ info_pid(Pid);
+
+ipi({peer, {Pid, _}}) ->
+ info_pid(Pid);
+
+ipi({port, [{owner, Pid} | _]}) ->
+ info_pid(Pid);
+
+ipi(_) ->
+ [].
+
+info_pid(Pid) ->
+ case process_info(Pid, [message_queue_len, memory, binary]) of
+ undefined ->
+ [];
+ L ->
+ [{Pid, lists:map(fun({K,V}) -> {K, map_info(K,V)} end, L)}]
+ end.
+
+%% The binary list consists of 3-tuples {Ptr, Size, Count}, where Ptr
+%% is a C pointer value, Size is the size of a referenced binary in
+%% bytes, and Count is a global reference count. The same Ptr can
+%% occur multiple times, once for each reference on the process heap.
+%% In this case, the corresponding tuples will have Size in common but
+%% Count may differ just because no global lock is taken when the
+%% value is retrieved.
+%%
+%% The list can be quite large, and we aren't often interested in the
+%% pointers or counts, so whittle this down to the number of binaries
+%% referenced and their total byte count.
+map_info(binary, L) ->
+ SzD = lists:foldl(fun({P,S,_}, D) -> dict:store(P,S,D) end,
+ dict:new(),
+ L),
+ {dict:size(SzD), dict:fold(fun(_,S,N) -> S + N end, 0, SzD)};
+
+map_info(_, T) ->
+ T.
+
%% The point of extracting the config here is so that 'transport' info
%% has one entry for each transport ref, the peer table only
%% containing entries that have a living watchdog.
@@ -1819,6 +1863,13 @@ mk_app(#diameter_app{} = A) ->
info_pending(#state{} = S) ->
diameter_traffic:pending(transports(S)).
+%% info_info/1
+%%
+%% Extract process_info from connections info.
+
+info_info(S) ->
+ [I || L <- conn_list(S), {info, I} <- L].
+
%% info_connections/1
%%
%% One entry per transport connection. Statistics for each entry are
diff --git a/lib/diameter/src/info/diameter_dbg.erl b/lib/diameter/src/info/diameter_dbg.erl
index b5b3983afa..b536e5e80b 100644
--- a/lib/diameter/src/info/diameter_dbg.erl
+++ b/lib/diameter/src/info/diameter_dbg.erl
@@ -32,7 +32,8 @@
compiled/0,
procs/0,
latest/0,
- nl/0]).
+ nl/0,
+ sizes/0]).
-export([diameter_config/0,
diameter_peer/0,
@@ -69,7 +70,16 @@
-define(VALUES(Rec), tl(tuple_to_list(Rec))).
%% ----------------------------------------------------------
-%% # table(TableName)
+%% # sizes/0
+%%
+%% Return sizes of named tables.
+%% ----------------------------------------------------------
+
+sizes() ->
+ [{T, ets:info(T, size)} || T <- ?LOCAL, T /= diameter_peer].
+
+%% ----------------------------------------------------------
+%% # table/1
%%
%% Pretty-print a diameter table. Returns the number of records
%% printed, or undefined.
@@ -97,7 +107,7 @@ split([F|Fs], [V|Vs]) ->
{F, Fs, V, Vs}.
%% ----------------------------------------------------------
-%% # TableName()
+%% # TableName/0
%% ----------------------------------------------------------
-define(TABLE(Name), Name() -> table(Name)).
@@ -111,7 +121,7 @@ split([F|Fs], [V|Vs]) ->
?TABLE(diameter_stats).
%% ----------------------------------------------------------
-%% # tables()
+%% # tables/0
%%
%% Pretty-print diameter tables from all nodes. Returns the number of
%% records printed.
@@ -127,7 +137,7 @@ split(_, Fs, Vs) ->
split(Fs, Vs).
%% ----------------------------------------------------------
-%% # modules()
+%% # modules/0
%% ----------------------------------------------------------
modules() ->
@@ -140,49 +150,49 @@ appdir() ->
[_|_] = code:lib_dir(?APP, ebin).
%% ----------------------------------------------------------
-%% # versions()
+%% # versions/0
%% ----------------------------------------------------------
versions() ->
?I:versions(modules()).
%% ----------------------------------------------------------
-%% # versions()
+%% # version_info/0
%% ----------------------------------------------------------
version_info() ->
?I:version_info(modules()).
%% ----------------------------------------------------------
-%% # compiled()
+%% # compiled/0
%% ----------------------------------------------------------
compiled() ->
?I:compiled(modules()).
%% ----------------------------------------------------------
-%% procs()
+%% # procs/0
%% ----------------------------------------------------------
procs() ->
?I:procs(?APP).
%% ----------------------------------------------------------
-%% # latest()
+%% # latest/0
%% ----------------------------------------------------------
latest() ->
?I:latest(modules()).
%% ----------------------------------------------------------
-%% # nl()
+%% # nl/0
%% ----------------------------------------------------------
nl() ->
lists:foreach(fun(M) -> abcast = c:nl(M) end, modules()).
%% ----------------------------------------------------------
-%% # pp(Bin)
+%% # pp/1
%%
%% Description: Pretty-print a message binary.
%% ----------------------------------------------------------
@@ -317,7 +327,7 @@ ppp({Field, Value}) ->
io:format(": ~-22s : ~p~n", [Field, Value]).
%% ----------------------------------------------------------
-%% # subscriptions()
+%% # subscriptions/0
%%
%% Returns a list of {SvcName, Pid}.
%% ----------------------------------------------------------
@@ -326,7 +336,7 @@ subscriptions() ->
diameter_service:subscriptions().
%% ----------------------------------------------------------
-%% # children()
+%% # children/0
%% ----------------------------------------------------------
children() ->