Current section
Files
Jump to
Current section
Files
src/observer_cli.erl
%%% @author zhongwen <zhongwencool@gmail.com>
-module(observer_cli).
-include("observer_cli.hrl").
%% API
-export([start/0]).
-export([start/1]).
-export([start/2]).
-export([start_plugin/0]).
-export([clean/1]).
%% cpu >= this value will be highlight
-define(CPU_ALARM_THRESHOLD, 0.8).
%% port or process reach max_limit * 0.85 will be highlight
-define(COUNT_ALARM_THRESHOLD, 0.85).
-define(LAST_LINE,
"q(quit) p(pause) r/rr(reduction) m/mm(mem)"
"b/bb(binary mem) t/tt(total heap size) mq/mmq(msg queue) 9(proc 9 info) F/B(page forward/back)"
).
-spec start() -> no_return | {badrpc, term()}.
start() -> start(#view_opts{}).
-spec start(Node) -> no_return | {badrpc, term()} when Node :: atom() | non_neg_integer().
start(Node) when Node =:= node() ->
start(#view_opts{});
start(Node) when is_atom(Node) ->
rpc_start(Node, ?DEFAULT_INTERVAL);
start(#view_opts{home = Home} = Opts) ->
erlang:process_flag(trap_exit, true),
AutoRow = check_auto_row(),
#home{scheduler_usage = SchUsage} = Home,
StorePid = observer_cli_store:start(),
LastSchWallFlag = set_scheduler_wall_time(true, SchUsage),
PsCmd = io_lib:format("ps -o pcpu,pmem ~s", [os:getpid()]),
RenderPid = spawn_link(fun() -> render_worker(PsCmd, StorePid, Home, AutoRow) end),
manager(StorePid, RenderPid, Opts#view_opts{auto_row = AutoRow}, LastSchWallFlag);
start(Interval) when is_integer(Interval), Interval >= ?MIN_INTERVAL ->
start(#view_opts{
home = #home{interval = Interval},
ets = #ets{interval = Interval},
sys = #system{interval = Interval},
db = #db{interval = Interval},
help = #help{interval = Interval},
inet = #inet{interval = Interval},
process = #process{interval = Interval},
port = Interval
}).
-spec start(Node, Cookies | Options) -> no_return | {badrpc, term()} when
Node :: atom(),
Cookies :: atom(),
Options :: proplists:proplist().
start(Node, _Cookie) when Node =:= node() ->
start(#view_opts{});
start(Node, Cookie) when is_atom(Node) andalso is_atom(Cookie) ->
start(Node, [{cookie, Cookie}]);
start(Node, Options) when is_atom(Node) andalso is_list(Options) ->
case proplists:get_value(cookie, Options) of
undefined -> ok;
Cookie -> erlang:set_cookie(Node, Cookie)
end,
Interval = proplists:get_value(interval, Options, ?DEFAULT_INTERVAL),
rpc_start(Node, Interval).
-spec start_plugin() -> no_return.
start_plugin() ->
erlang:process_flag(trap_exit, true),
application:ensure_all_started(observer_cli),
observer_cli_plugin:start(#view_opts{}).
-spec clean(list()) -> boolean().
clean([RenderPid, StorePid, SchWallFlag, SchUsage]) ->
observer_cli_lib:exit_processes([RenderPid, StorePid]),
set_scheduler_wall_time(SchWallFlag, SchUsage).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Private
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
rpc_start(Node, Interval) ->
case net_kernel:hidden_connect_node(Node) of
true ->
rpc:call(Node, ?MODULE, start, [Interval]);
false ->
Msg = <<"Node(~p) refuse to be connected, make sure cookie is valid~n">>,
connect_error(Msg, Node),
{badrpc, nodedown};
ignored ->
Msg = <<"Ignored by node(~p), local node is not alive!~n">>,
connect_error(Msg, Node),
{badrpc, nodedown}
end.
manager(StorePid, RenderPid, Opts, LastSchWallFlag) ->
#view_opts{home = Home = #home{cur_page = CurPage, pages = Pages, scheduler_usage = SchUsage}} =
Opts,
Resource = [RenderPid, StorePid, LastSchWallFlag, SchUsage],
case observer_cli_lib:parse_cmd(Opts, ?MODULE, Resource) of
quit ->
erlang:unlink(RenderPid),
erlang:send(RenderPid, quit),
set_scheduler_wall_time(LastSchWallFlag, SchUsage),
observer_cli_lib:exit_processes([StorePid]),
quit;
pause_or_resume ->
erlang:send(RenderPid, pause_or_resume),
manager(StorePid, RenderPid, Opts, LastSchWallFlag);
{new_interval, NewInterval} ->
clean(Resource),
start(Opts#view_opts{home = Home#home{interval = NewInterval}});
scheduler_usage ->
NewSchUsage =
case SchUsage of
?DISABLE -> ?ENABLE;
?ENABLE -> ?DISABLE
end,
clean(Resource),
start(Opts#view_opts{home = Home#home{scheduler_usage = NewSchUsage}});
{jump, NewPos} ->
NewPages = observer_cli_lib:update_page_pos(CurPage, NewPos, Pages),
NewOpts = Opts#view_opts{home = Home#home{pages = NewPages}},
start_process_view(StorePid, RenderPid, NewOpts, LastSchWallFlag, false);
jump ->
start_process_view(StorePid, RenderPid, Opts, LastSchWallFlag, true);
{func, Func, Type} ->
clean(Resource),
start(Opts#view_opts{home = Home#home{func = Func, type = Type}});
page_down_top_n ->
NewPage = max(CurPage + 1, 1),
NewPages = observer_cli_lib:update_page_pos(StorePid, NewPage, Pages),
clean(Resource),
start(Opts#view_opts{home = Home#home{cur_page = NewPage, pages = NewPages}});
page_up_top_n ->
NewPage = max(CurPage - 1, 1),
NewPages = observer_cli_lib:update_page_pos(StorePid, NewPage, Pages),
clean(Resource),
start(Opts#view_opts{home = Home#home{cur_page = NewPage, pages = NewPages}});
_ ->
manager(StorePid, RenderPid, Opts, LastSchWallFlag)
end.
render_worker(PsCmd, Manager, Home = #home{scheduler_usage = SchUsage}, AutoRow) ->
?output(?CLEAR),
StableInfo = get_stable_system_info(),
LastStats = get_incremental_stats(SchUsage),
redraw_running(PsCmd, Manager, Home, StableInfo, LastStats, erlang:make_ref(), AutoRow, true).
%% pause status waiting to be resume
redraw_pause(PsCmd, StorePid, Home, StableInfo, LastStats, LastTimeRef, AutoRow) ->
notify_pause_status(),
erlang:cancel_timer(LastTimeRef),
#home{func = Func, type = Type} = Home,
receive
quit ->
quit;
{Func, Type} ->
redraw_running(
PsCmd,
StorePid,
Home,
StableInfo,
LastStats,
LastTimeRef,
AutoRow,
false
);
pause_or_resume ->
?output(?CLEAR),
redraw_running(PsCmd, StorePid, Home, StableInfo, LastStats, LastTimeRef, AutoRow, true)
end.
%% running status
redraw_running(PsCmd, StorePid, Home, StableInfo, LastStats, LastTimeRef, AutoRow, IsFirstTime) ->
#home{
interval = Interval,
func = Func,
type = Type,
pages = RankPos,
cur_page = CurPage,
scheduler_usage = SchUsage
} = Home,
erlang:cancel_timer(LastTimeRef),
TerminalRow = observer_cli_lib:get_terminal_rows(AutoRow),
{Diffs, Schedulers, NewStats} = node_stats(LastStats, SchUsage),
{CPURow, CPULine} = render_scheduler_usage(Schedulers),
ProcessRows = max(TerminalRow - 14 - CPURow, 0),
TopLen = ProcessRows * CurPage,
TopList = get_top_n(Func, Type, Interval, TopLen, IsFirstTime),
Text = get_refresh_prompt(Func, Type, Interval, TopLen),
MenuLine = observer_cli_lib:render_menu(home, Text),
SystemLine = render_system_line(PsCmd, element(1, StableInfo)),
MemLine = render_memory_process_line(Diffs, element(2, StableInfo), Interval),
{TopNList, RankLine} = render_top_n_view(Type, TopList, ProcessRows, RankPos, CurPage),
LastLine = observer_cli_lib:render_last_line(?LAST_LINE),
?output([?CURSOR_TOP, MenuLine, SystemLine, MemLine, CPULine, RankLine, LastLine]),
observer_cli_store:update(StorePid, ProcessRows, TopNList),
TimeRef = refresh_next_time(Func, Type, Interval),
receive
quit ->
quit;
pause_or_resume ->
redraw_pause(PsCmd, StorePid, Home, StableInfo, NewStats, TimeRef, AutoRow);
{Func, Type} ->
redraw_running(PsCmd, StorePid, Home, StableInfo, NewStats, TimeRef, AutoRow, false)
end.
render_system_line(PsCmd, StableInfo) ->
[Version, SysVersion, ProcLimit, PortLimit, EtsLimit] = StableInfo,
ActiveTask = erlang:statistics(total_active_tasks),
{ContextSwitch, _} = erlang:statistics(context_switches),
AtomStatus = get_atom_status(),
Reductions = erlang:statistics(reductions),
{PortWarning, ProcWarning, PortCount, ProcCount} =
get_port_proc_info(PortLimit, ProcLimit),
[_, CmdValue | _] = string:split(os:cmd(PsCmd), "\n", all),
[CpuPsV, MemPsV] =
case lists:filter(fun(Y) -> Y =/= [] end, string:split(CmdValue, " ", all)) of
[] -> ["--", "--"];
[V1, V2] -> [V1, V2]
end,
Title = ?render([
?W(SysVersion, 136),
?NEW_LINE,
?GRAY_BG,
?W("System", 10),
?W("Count/Limit", 21),
?W("System", 25),
?W("Status", 21),
?W("Stat Info", 20),
?W("Size", 24)
]),
Row1 = ?render([
?W("Proc Count", 10),
?W2(ProcWarning, ProcCount, 22),
?W(" Version", 26),
?W(Version, 21),
?W("Active Task", 20),
?W(ActiveTask, 24),
?NEW_LINE,
?W("Port Count", 10),
?W2(PortWarning, PortCount, 22),
?W(" ps -o pcpu", 26),
?W([CpuPsV, "%"], 21),
?W("Context Switch", 20),
?W(ContextSwitch, 24)
]),
{Reds, AddReds} = Reductions,
Row2 =
case AtomStatus of
{ok, AtomLimit, AtomCount} ->
{AtomWarning, Atom} = format_atom_info(AtomLimit, AtomCount),
?render([
?UNDERLINE,
?W("Atom Count", 10),
?W2(AtomWarning, Atom, 22),
?W(" ps -o pmem", 26),
?W([MemPsV, "%"], 21),
?W("Reds(Total/SinceLastCall)", 20),
?W([integer_to_list(Reds), "/", integer_to_list(AddReds)], 24)
]);
{error, unsupported} ->
?render([
?UNDERLINE,
?W("Ets Limit", 10),
?W(EtsLimit, 21),
?W(" ps -o pmem", 25),
?W([MemPsV, "%"], 21),
?W("Reductions", 20),
?W(Reductions, 24)
])
end,
[Title, Row1, Row2].
render_memory_process_line(MemSum, PortParallelism, Interval) ->
RunQ = erlang:statistics(run_queue),
Mem = erlang:memory(),
TotalMem = proplists:get_value(total, Mem),
ProcMem = proplists:get_value(processes_used, Mem),
CodeMem = proplists:get_value(code, Mem),
AtomMem = proplists:get_value(atom_used, Mem),
BinMem = proplists:get_value(binary, Mem),
EtsMem = proplists:get_value(ets, Mem),
{
BytesIn,
BytesOut,
GcCount,
GcWordsReclaimed
} = MemSum,
{Queue, LogKey} =
case whereis(error_logger) of
undefined ->
{erlang:integer_to_list(RunQ), "RunQueue"};
Pid ->
{_, Q} = process_info(Pid, message_queue_len),
{[erlang:integer_to_list(RunQ), "/", erlang:integer_to_list(Q)],
"RunQueue/ErrorLoggerQueue"}
end,
ProcMemPercent = observer_cli_lib:to_percent(ProcMem / TotalMem),
AtomMemPercent = observer_cli_lib:to_percent(AtomMem / TotalMem),
BinMemPercent = observer_cli_lib:to_percent(BinMem / TotalMem),
CodeMemPercent = observer_cli_lib:to_percent(CodeMem / TotalMem),
EtsMemPercent = observer_cli_lib:to_percent(EtsMem / TotalMem),
Title = ?render([
?GRAY_BG,
?W("Mem Type", 10),
?W("Size", 21),
?W("Mem Type", 25),
?W("Size", 21),
?W(["IO/GC:(", integer_to_binary(Interval), "ms)"], 20),
?W("Total/Increments", 24)
]),
Row = ?render([
?W("Total", 10),
?W({byte, TotalMem}, 12),
?W("100.0%", 6),
?W("Binary", 25),
?W({byte, BinMem}, 12),
?W(BinMemPercent, 6),
?W("IO Output", 20),
?W(BytesOut, 24),
?NEW_LINE,
?W("Process", 10),
?W({byte, ProcMem}, 12),
?W(ProcMemPercent, 6),
?W("Code", 25),
?W({byte, CodeMem}, 12),
?W(CodeMemPercent, 6),
?W("IO Input", 20),
?W(BytesIn, 24),
?NEW_LINE,
?W("Atom", 10),
?W({byte, AtomMem}, 12),
?W(AtomMemPercent, 6),
?W("Port Parallelism (+spp)", 25),
?W(PortParallelism, 21),
?W("Gc Count", 20),
?W(GcCount, 24),
?NEW_LINE,
?W("Ets", 10),
?W({byte, EtsMem}, 12),
?W(EtsMemPercent, 6),
?W(LogKey, 25),
?W(Queue, 21),
?W("Gc Words Reclaimed", 20),
?W(GcWordsReclaimed, 24)
]),
[Title, Row].
render_scheduler_usage(undefined) ->
{0, []};
render_scheduler_usage(SchedulerUsage) ->
SchedulerNum = erlang:length(SchedulerUsage),
render_scheduler_usage(SchedulerUsage, SchedulerNum).
%% < 8 core split 2 part
render_scheduler_usage(SchedulerUsage, SchedulerNum) when SchedulerNum < 8 ->
Column =
case SchedulerNum rem 2 =:= 0 of
true -> SchedulerNum div 2;
false -> (SchedulerNum div 2) + 1
end,
CPU = [
begin
Seq2 = transform_seq(Seq1, Column, SchedulerNum),
Percent1 = proplists:get_value(Seq1, SchedulerUsage, 0.0),
Percent2 = proplists:get_value(Seq2, SchedulerUsage, 0.0),
CPU1 = observer_cli_lib:to_percent(Percent1),
CPU2 = observer_cli_lib:to_percent(Percent2),
Process1 = lists:duplicate(trunc(Percent1 * 57), "|"),
Process2 = lists:duplicate(trunc(Percent2 * 57), "|"),
IsLastLine = Seq1 =:= Column,
Format = process_bar_format_style([Percent1, Percent2], IsLastLine),
io_lib:format(Format, [
Seq1,
Process1,
CPU1,
Seq2,
Process2,
CPU2
])
end
|| Seq1 <- lists:seq(1, Column)
],
{Column, CPU};
%% 100 >= scheduler >= 8 split 4 part
render_scheduler_usage(SchedulerUsage, SchedulerNum) when SchedulerNum =< 100 ->
Column =
case SchedulerNum rem 4 =:= 0 of
true -> SchedulerNum div 4;
false -> (SchedulerNum div 4) + 1
end,
CPU = [
begin
Seq2 = transform_seq(Seq1, Column, SchedulerNum),
Seq3 = transform_seq(Seq2, Column, SchedulerNum),
Seq4 = transform_seq(Seq3, Column, SchedulerNum),
Percent1 = proplists:get_value(Seq1, SchedulerUsage, 0.0),
Percent2 = proplists:get_value(Seq2, SchedulerUsage, 0.0),
Percent3 = proplists:get_value(Seq3, SchedulerUsage, 0.0),
Percent4 = proplists:get_value(Seq4, SchedulerUsage, 0.0),
CPU1 = observer_cli_lib:to_percent(Percent1),
CPU2 = observer_cli_lib:to_percent(Percent2),
CPU3 = observer_cli_lib:to_percent(Percent3),
CPU4 = observer_cli_lib:to_percent(Percent4),
Process1 = lists:duplicate(trunc(Percent1 * 22), "|"),
Process2 = lists:duplicate(trunc(Percent2 * 22), "|"),
Process3 = lists:duplicate(trunc(Percent3 * 22), "|"),
Process4 = lists:duplicate(trunc(Percent4 * 23), "|"),
IsLastLine = Seq1 =:= Column,
Format = process_bar_format_style([Percent1, Percent2, Percent3, Percent4], IsLastLine),
io_lib:format(Format, [
Seq1,
Process1,
CPU1,
Seq2,
Process2,
CPU2,
Seq3,
Process3,
CPU3,
Seq4,
Process4,
CPU4
])
end
|| Seq1 <- lists:seq(1, Column)
],
{Column, CPU};
%% scheduler > 100 don't show process bar.
render_scheduler_usage(SchedulerUsage, SchedulerNum) ->
Column =
case SchedulerNum rem 10 =:= 0 of
true -> SchedulerNum div 10;
false -> (SchedulerNum div 10) + 1
end,
CPU = [
begin
Seq2 = transform_seq(Seq1, Column, SchedulerNum),
Seq3 = transform_seq(Seq2, Column, SchedulerNum),
Seq4 = transform_seq(Seq3, Column, SchedulerNum),
Seq5 = transform_seq(Seq4, Column, SchedulerNum),
Seq6 = transform_seq(Seq5, Column, SchedulerNum),
Seq7 = transform_seq(Seq6, Column, SchedulerNum),
Seq8 = transform_seq(Seq7, Column, SchedulerNum),
Seq9 = transform_seq(Seq8, Column, SchedulerNum),
Seq10 = transform_seq(Seq9, Column, SchedulerNum),
Percent1 = proplists:get_value(Seq1, SchedulerUsage),
Percent2 = proplists:get_value(Seq2, SchedulerUsage),
Percent3 = proplists:get_value(Seq3, SchedulerUsage),
Percent4 = proplists:get_value(Seq4, SchedulerUsage),
Percent5 = proplists:get_value(Seq5, SchedulerUsage),
Percent6 = proplists:get_value(Seq6, SchedulerUsage),
Percent7 = proplists:get_value(Seq7, SchedulerUsage),
Percent8 = proplists:get_value(Seq8, SchedulerUsage),
Percent9 = proplists:get_value(Seq9, SchedulerUsage),
Percent10 = proplists:get_value(Seq10, SchedulerUsage),
CPU1 = observer_cli_lib:to_percent(Percent1),
CPU2 = observer_cli_lib:to_percent(Percent2),
CPU3 = observer_cli_lib:to_percent(Percent3),
CPU4 = observer_cli_lib:to_percent(Percent4),
CPU5 = observer_cli_lib:to_percent(Percent5),
CPU6 = observer_cli_lib:to_percent(Percent6),
CPU7 = observer_cli_lib:to_percent(Percent7),
CPU8 = observer_cli_lib:to_percent(Percent8),
CPU9 = observer_cli_lib:to_percent(Percent9),
CPU10 = observer_cli_lib:to_percent(Percent10),
IsLastLine = Seq1 =:= Column,
Percents = [
Percent1,
Percent2,
Percent3,
Percent4,
Percent5,
Percent6,
Percent7,
Percent8,
Percent9,
Percent10
],
Format = process_bar_format_style(Percents, IsLastLine),
io_lib:format(Format, [
Seq1,
CPU1,
Seq2,
CPU2,
Seq3,
CPU3,
Seq4,
CPU4,
Seq5,
CPU5,
Seq6,
CPU6,
Seq7,
CPU7,
Seq8,
CPU8,
Seq9,
CPU9,
Seq10,
CPU10
])
end
|| Seq1 <- lists:seq(1, Column)
],
{Column, CPU}.
transform_seq(Seq, Column, Total) ->
Num = Seq + Column,
case Num > Total of
true -> 1000;
false -> Num
end.
render_top_n_view(memory, MemoryList, Num, Pages, Page) ->
Title = ?render([
?W2(?GRAY_BG, "No | Pid", 16),
?W2(?RED_BG, " Memory", 14),
?W(?GRAY_BG, "Name or Initial Call", 38),
?W(?GRAY_BG, " Reductions", 21),
?W(?GRAY_BG, " MsgQueue", 10),
?W(?GRAY_BG, "Current Function", 32)
]),
{Start, ChoosePos} = observer_cli_lib:get_pos(Page, Num, Pages, erlang:length(MemoryList)),
FormatFunc = fun(Item, {Acc, Acc1, Pos}) ->
{Pid, MemVal, CurFun, NameOrCall} = get_top_n_info(Item),
{Reductions, MsgQueueLen} = get_pid_info(Pid, [reductions, message_queue_len]),
Format = get_memory_format(ChoosePos, Pos),
R = io_lib:format(
Format,
[
Pos,
erlang:pid_to_list(Pid),
observer_cli_lib:to_byte(MemVal),
NameOrCall,
observer_cli_lib:to_list(Reductions),
observer_cli_lib:to_list(MsgQueueLen),
CurFun
]
),
{[R | Acc], [{Pos, Pid} | Acc1], Pos + 1}
end,
{Rows, PidList} = top_n_rows(FormatFunc, Start, lists:sublist(MemoryList, Start, Num)),
{PidList, [Title | lists:reverse(Rows)]};
render_top_n_view(binary_memory, MemoryList, Num, Pages, Page) ->
Title = ?render([
?W2(?GRAY_BG, "No | Pid", 16),
?W2(?RED_BG, " BinMemory", 14),
?W(?GRAY_BG, "Name or Initial Call", 38),
?W(?GRAY_BG, " Reductions", 21),
?W(?GRAY_BG, " MsgQueue", 10),
?W(?GRAY_BG, "Current Function", 32)
]),
{Start, ChoosePos} = observer_cli_lib:get_pos(Page, Num, Pages, erlang:length(MemoryList)),
FormatFunc = fun(Item, {Acc, Acc1, Pos}) ->
{Pid, MemVal, CurFun, NameOrCall} = get_top_n_info(Item),
{Reductions, MsgQueueLen} = get_pid_info(Pid, [reductions, message_queue_len]),
Format = get_memory_format(ChoosePos, Pos),
R = io_lib:format(
Format,
[
Pos,
pid_to_list(Pid),
observer_cli_lib:to_byte(MemVal),
NameOrCall,
observer_cli_lib:to_list(Reductions),
observer_cli_lib:to_list(MsgQueueLen),
CurFun
]
),
{[R | Acc], [{Pos, Pid} | Acc1], Pos + 1}
end,
{Rows, PidList} = top_n_rows(FormatFunc, Start, lists:sublist(MemoryList, Start, Num)),
{PidList, [Title | lists:reverse(Rows)]};
render_top_n_view(reductions, ReductionList, Num, Pages, Page) ->
Title = ?render([
?W2(?GRAY_BG, "No | Pid", 16),
?W2(?RED_BG, " Reductions", 21),
?W(?GRAY_BG, "Name or Initial Call", 38),
?W(?GRAY_BG, " Memory", 13),
?W(?GRAY_BG, " MsgQueue", 10),
?W(?GRAY_BG, "Current Function", 33)
]),
{Start, ChoosePos} = observer_cli_lib:get_pos(Page, Num, Pages, erlang:length(ReductionList)),
FormatFunc = fun(Item, {Acc, Acc1, Pos}) ->
{Pid, Reductions, CurFun, NameOrCall} = get_top_n_info(Item),
{Memory, MsgQueueLen} = get_pid_info(Pid, [memory, message_queue_len]),
Format = get_reduction_format(ChoosePos, Pos),
R = io_lib:format(
Format,
[
Pos,
pid_to_list(Pid),
observer_cli_lib:to_list(Reductions),
NameOrCall,
observer_cli_lib:to_byte(Memory),
observer_cli_lib:to_list(MsgQueueLen),
CurFun
]
),
{[R | Acc], [{Pos, Pid} | Acc1], Pos + 1}
end,
{Rows, PidList} = top_n_rows(FormatFunc, Start, lists:sublist(ReductionList, Start, Num)),
{PidList, [Title | lists:reverse(Rows)]};
render_top_n_view(total_heap_size, HeapList, Num, Pages, Page) ->
Title = ?render([
?W2(?GRAY_BG, "No | Pid", 16),
?W2(?RED_BG, " TotalHeapSize", 14),
?W(?GRAY_BG, "Name or Initial Call", 38),
?W(?GRAY_BG, " Reductions", 21),
?W(?GRAY_BG, " MsgQueue", 10),
?W(?GRAY_BG, "Current Function", 32)
]),
{Start, ChoosePos} = observer_cli_lib:get_pos(Page, Num, Pages, erlang:length(HeapList)),
FormatFunc = fun(Item, {Acc, Acc1, Pos}) ->
{Pid, HeapSize, CurFun, NameOrCall} = get_top_n_info(Item),
{Reductions, MsgQueueLen} = get_pid_info(Pid, [reductions, message_queue_len]),
Format = get_memory_format(ChoosePos, Pos),
R = io_lib:format(
Format,
[
Pos,
pid_to_list(Pid),
observer_cli_lib:to_byte(HeapSize),
NameOrCall,
observer_cli_lib:to_list(Reductions),
observer_cli_lib:to_list(MsgQueueLen),
CurFun
]
),
{[R | Acc], [{Pos, Pid} | Acc1], Pos + 1}
end,
{Rows, PidList} = top_n_rows(FormatFunc, Start, lists:sublist(HeapList, Start, Num)),
{PidList, [Title | lists:reverse(Rows)]};
render_top_n_view(message_queue_len, MQLenList, Num, Pages, Page) ->
Title = ?render([
?W2(?GRAY_BG, "No | Pid", 16),
?W2(?RED_BG, " MsgQueue", 11),
?W(?GRAY_BG, "Name or Initial Call", 37),
?W(?GRAY_BG, " Memory", 13),
?W(?GRAY_BG, " Reductions", 21),
?W(?GRAY_BG, "Current Function", 33)
]),
{Start, ChoosePos} = observer_cli_lib:get_pos(Page, Num, Pages, erlang:length(MQLenList)),
FormatFunc = fun(Item, {Acc, Acc1, Pos}) ->
{Pid, MQLen, CurFun, NameOrCall} = get_top_n_info(Item),
{Reductions, Memory} = get_pid_info(Pid, [reductions, memory]),
Format = get_message_queue_format(ChoosePos, Pos),
R = io_lib:format(
Format,
[
Pos,
pid_to_list(Pid),
observer_cli_lib:to_list(MQLen),
NameOrCall,
observer_cli_lib:to_byte(Memory),
observer_cli_lib:to_list(Reductions),
CurFun
]
),
{[R | Acc], [{Pos, Pid} | Acc1], Pos + 1}
end,
{Rows, PidList} = top_n_rows(FormatFunc, Start, lists:sublist(MQLenList, Start, Num)),
{PidList, [Title | lists:reverse(Rows)]}.
top_n_rows(FormatFunc, Start, List) ->
{Row, PidList, _} = lists:foldl(FormatFunc, {[], [], Start}, List),
{Row, PidList}.
notify_pause_status() ->
?output("\e[31;1m PAUSE INPUT (p, r/rr, b/bb, h/hh, m/mm) to resume or q to quit \e[0m~n").
get_memory_format(Pos, Pos) ->
"|\e[42m~-3.3w|~-12.12s|~13.13s |~-38.38s|~21.21s| ~-9.9s|~-33.33s\e[49m|~n";
get_memory_format(_Pos, _RankPos) ->
"|~-3.3w|~-12.12s|~13.13s |~-38.38s|~21.21s| ~-9.9s|~-33.33s|~n".
get_reduction_format(Pos, Pos) ->
"|\e[42m~-3.3w|~-12.12s|~-21.21s|~-38.38s|~13.13s| ~-9.9s|~-34.34s\e[49m|~n";
get_reduction_format(_Pos, _RankPos) ->
"|~-3.3w|~-12.12s|~-21.21s|~-38.38s|~13.13s| ~-9.9s|~-34.34s|~n".
get_message_queue_format(Pos, Pos) ->
"|\e[42m~-3.3w|~-12.12s|~-11.11s|~-37.37s|~13.13s| ~-20.20s|~-34.34s\e[49m|~n";
get_message_queue_format(_Pos, _RankPos) ->
"|~-3.3w|~-12.12s|~-11.11s|~-37.37s|~13.13s| ~-20.20s|~-34.34s|~n".
refresh_next_time(proc_count, Type, Interval) ->
erlang:send_after(Interval, self(), {proc_count, Type});
refresh_next_time(proc_window, Type, _Interval) ->
erlang:send_after(10, self(), {proc_window, Type}).
get_current_initial_call(Call) ->
{_, CurFun} = lists:keyfind(current_function, 1, Call),
{_, InitialCall} = lists:keyfind(initial_call, 1, Call),
{observer_cli_lib:mfa_to_list(CurFun), InitialCall}.
get_port_proc_info(PortLimit, ProcLimit) ->
ProcCount = erlang:system_info(process_count),
PortCount = erlang:system_info(port_count),
PortCountStr = [integer_to_list(PortCount), "/", integer_to_list(PortLimit)],
ProcCountStr = [integer_to_list(ProcCount), "/", integer_to_list(ProcLimit)],
PortWarning =
case PortCount > PortLimit * ?COUNT_ALARM_THRESHOLD of
true -> ?RED;
false -> <<"">>
end,
ProcWarning =
case ProcCount > ProcLimit * ?COUNT_ALARM_THRESHOLD of
true -> ?RED;
false -> <<"">>
end,
{PortWarning, ProcWarning, PortCountStr, ProcCountStr}.
format_atom_info(AtomLimit, AtomCount) ->
Atom = [integer_to_list(AtomCount), "/", integer_to_list(AtomLimit)],
case AtomCount > AtomLimit * ?COUNT_ALARM_THRESHOLD of
true -> {?RED, Atom};
false -> {<<"">>, Atom}
end.
warning_color(Percent) when Percent >= ?CPU_ALARM_THRESHOLD -> ?RED;
warning_color(_Percent) -> ?GREEN.
process_bar_format_style(Percents, IsLastLine) ->
Format =
case
[
begin
warning_color(P)
end
|| P <- Percents
]
of
[W1, W2] ->
<<"|", W1/binary, "|~2..0w ~-57.57s~s", W2/binary,
" |~2..0w ~-57.57s ~s \e[0m|~n">>;
[W1, W2, W3, W4] ->
<<"|", W1/binary, "|~-2.2w ~-22.22s ~s", W2/binary, " |~-2.2w ~-22.22s ~s",
W3/binary, " |~-2.2w ~-22.22s ~s", W4/binary, " |~-2.2w ~-23.23s ~s \e[0m|~n">>;
[W1, W2, W3, W4, W5, W6, W7, W8, W9, W10] ->
<<"|", W1/binary, " | ~-3.3w ~s", W2/binary, " | ~-3.3w ~s", W3/binary,
" | ~-3.3w ~s", W4/binary, " | ~-3.3w ~s", W5/binary, " | ~-3.3w ~s", W6/binary,
" |=====| ~-3.3w ~s", W7/binary, " | ~-3.3w ~s", W8/binary, " | ~-3.3w ~s",
W9/binary, " | ~-3.3w ~s", W10/binary, " | ~-3.3w ~s \e[0m|~n">>
end,
case IsLastLine of
true -> <<?UNDERLINE/binary, Format/binary>>;
false -> Format
end.
get_top_n_info(Item) ->
{Pid, Val, Call = [IsName | _]} = Item,
{CurFun, InitialCall} = get_current_initial_call(Call),
NameOrCall = display_name_or_initial_call(IsName, InitialCall, Pid),
{Pid, Val, CurFun, NameOrCall}.
display_name_or_initial_call(IsName, _Call, _Pid) when is_atom(IsName) ->
atom_to_list(IsName);
display_name_or_initial_call(_IsName, {proc_lib, init_p, 5}, Pid) ->
%% translate gen_xxx behavior
observer_cli_lib:mfa_to_list(proc_lib:translate_initial_call(Pid));
display_name_or_initial_call(_IsName, Call, _Pid) ->
observer_cli_lib:mfa_to_list(Call).
get_refresh_prompt(proc_count, Type, Interval, Rows) ->
io_lib:format("recon:proc_count(~p, ~w) Interval:~wms", [Type, Rows, Interval]);
get_refresh_prompt(proc_window, Type, Interval, Rows) ->
io_lib:format("recon:proc_window(~p, ~w, ~w) Interval:~wms", [Type, Rows, Interval, Interval]).
get_stable_system_info() ->
OtpRelease = erlang:system_info(otp_release),
SysVersion = erlang:system_info(system_version) -- "\n",
Path = filename:join([code:root_dir(), "releases", OtpRelease, "OTP_VERSION"]),
Version =
case file:read_file(Path) of
{ok, VersionBin} -> erlang:binary_to_list(VersionBin) -- "\n";
_ -> OtpRelease
end,
{[
Version,
SysVersion,
erlang:system_info(process_limit),
erlang:system_info(port_limit),
erlang:system_info(ets_limit)
],
erlang:system_info(port_parallelism)}.
get_atom_status() ->
try erlang:system_info(atom_limit) of
Limit ->
Count = erlang:system_info(atom_count),
{ok, Limit, Count}
catch
_:badarg -> {error, unsupported}
end.
get_pid_info(Pid, Keys) ->
case recon:info(Pid, Keys) of
undefined -> {"die", "die"};
[{_, Val1}, {_, Val2}] -> {Val1, Val2}
end.
get_top_n(proc_window, Type, Interval, Rows, IsFirstTime) when not IsFirstTime ->
recon:proc_window(Type, Rows, Interval);
get_top_n(_Func, Type, _Interval, Rows, _FirstTime) ->
recon:proc_count(Type, Rows).
connect_error(Prompt, Node) ->
Prop = <<?RED/binary, Prompt/binary, ?RESET/binary>>,
?output(Prop, [Node]).
start_process_view(StorePid, RenderPid, Opts = #view_opts{home = Home}, LastSchWallFlag, AutoJump) ->
#home{cur_page = CurPage, pages = Pages, scheduler_usage = SchUsage} = Home,
{_, CurPos} = lists:keyfind(CurPage, 1, Pages),
case observer_cli_store:lookup_pos(StorePid, CurPos) of
{CurPos, ChoosePid} ->
clean([RenderPid, StorePid, LastSchWallFlag, SchUsage]),
observer_cli_process:start(ChoosePid, Opts);
{_, ChoosePid} when AutoJump ->
clean([RenderPid, StorePid, LastSchWallFlag, SchUsage]),
observer_cli_process:start(ChoosePid, Opts);
_ ->
manager(StorePid, RenderPid, Opts, LastSchWallFlag)
end.
set_scheduler_wall_time(_Flag, ?DISABLE) -> false;
set_scheduler_wall_time(Flag, ?ENABLE) -> erlang:system_flag(scheduler_wall_time, Flag).
check_auto_row() ->
case io:rows() of
{ok, _} -> true;
{error, _} -> false
end.
node_stats({LastIn, LastOut, LastGCs, LastWords, LastScheduleWall}, SchUsage) ->
New = {In, Out, GCs, Words, ScheduleWall} = get_incremental_stats(SchUsage),
BytesInDiff = In - LastIn,
BytesOutDiff = Out - LastOut,
GCCountDiff = GCs - LastGCs,
GCWordsDiff = Words - LastWords,
{
{
[observer_cli_lib:to_byte(In), "/", observer_cli_lib:to_byte(BytesInDiff)],
[observer_cli_lib:to_byte(Out), "/", observer_cli_lib:to_byte(BytesOutDiff)],
[integer_to_list(GCs), "/", integer_to_list(GCCountDiff)],
[integer_to_list(Words), "/", integer_to_list(GCWordsDiff)]
},
recon_lib:scheduler_usage_diff(LastScheduleWall, ScheduleWall),
New
}.
get_incremental_stats(SchUsage) ->
{{input, In}, {output, Out}} = erlang:statistics(io),
{GCs, Words, _} = erlang:statistics(garbage_collection),
ScheduleWall =
case SchUsage of
?ENABLE -> erlang:statistics(scheduler_wall_time);
?DISABLE -> undefined
end,
{In, Out, GCs, Words, ScheduleWall}.