/
tracer_fsm_init.erl
90 lines (81 loc) · 3.23 KB
/
tracer_fsm_init.erl
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%% -------------------------------------------------------------------
%%
%% Copyright (c) 2014 Basho Technologies, Inc. All Rights Reserved.
%%
%% This file is provided to you under the Apache License,
%% Version 2.0 (the "License"); you may not use this file
%% except in compliance with the License. You may obtain
%% a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing,
%% software distributed under the License is distributed on an
%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
%% KIND, either express or implied. See the License for the
%% specific language governing permissions and limitations
%% under the License.
%%
%% -------------------------------------------------------------------
-module(tracer_fsm_init).
-compile(export_all).
start() ->
start(1*1000).
start(Interval) ->
%%% Count the get, put, buckets, keys, exchange, and index FSM init() calls
dbg:tracer(process, {fun trace/2, new_stats()}),
dbg:p(all, call),
[dbg:tpl(Mod, init, 1, [{'_', [], []}]) ||
Mod <- [riak_kv_buckets_fsm, riak_kv_exchange_fsm, riak_kv_get_fsm, riak_kv_index_fsm, riak_kv_keys_fsm, riak_kv_put_fsm]],
dbg:tpl(riak_kv_put_fsm, start_link, 3, [{'_', [], []}]),
%% Don't need return_trace events for this use case, but here's
%% how to do it if needed.
%%dbg:tpl(bitcask, merge_single_entry, 6, [{'_', [], [{return_trace}]}]).
{ok, TPid} = dbg:get_tracer(),
io:format("Tracer pid: ~p, use ~p:stop() to stop\n", [TPid, ?MODULE]),
timer:send_interval(Interval, TPid, print_report),
{started, TPid}.
stop() ->
dbg:stop_clear(),
catch exit(element(2,dbg:get_tracer()), kill),
stopped.
trace({trace, _Pid, call, {riak_kv_put_fsm, start_link, _}},
{Pstart_link, R, P, B, E, I, K}) ->
{Pstart_link+1, R, P, B, E, I, K};
trace({trace, _Pid, call, {riak_kv_get_fsm, init, _}},
{Pstart_link, R, P, B, E, I, K}) ->
{Pstart_link, R+1, P, B, E, I, K};
trace({trace, _Pid, call, {riak_kv_put_fsm, init, _}},
{Pstart_link, R, P, B, E, I, K}) ->
{Pstart_link, R, P+1, B, E, I, K};
trace({trace, _Pid, call, {riak_kv_buckets_fsm, init, _}},
{Pstart_link, R, P, B, E, I, K}) ->
{Pstart_link, R, P, B+1, E, I, K};
trace({trace, _Pid, call, {riak_kv_exchange_fsm, init, _}},
{Pstart_link, R, P, B, E, I, K}) ->
{Pstart_link, R, P, B, E+1, I, K};
trace({trace, _Pid, call, {riak_kv_index_fsm, init, _}},
{Pstart_link, R, P, B, E, I, K}) ->
{Pstart_link, R, P, B, E, I+1, K};
trace({trace, _Pid, call, {riak_kv_keys_fsm, init, _}},
{Pstart_link, R, P, B, E, I, K}) ->
{Pstart_link, R, P, B, E, I, K+1};
trace(print_report, Stats) ->
print_stats(Stats),
new_stats();
trace(Unknown, Stats) ->
erlang:display(wha),
io:format("Unknown! ~P\n", [Unknown, 20]),
Stats.
new_stats() ->
{0,
0, 0, 0, 0, 0, 0}.
print_stats({Pstart_link, Get, Put, Buckets, Exchange, Index, Keys}) ->
Stats = [{put_start, Pstart_link},
{get, Get},
{put, Put},
{buckets, Buckets},
{exchange, Exchange},
{index, Index},
{keys, Keys}],
io:format("~p ~p: ~p\n", [date(), time(), Stats]).