1 /*
2  *
3  * Copyright 2019 gRPC authors.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18 
19 /* Benchmark gRPC end2end in various configurations */
20 
21 #ifndef TEST_CPP_MICROBENCHMARKS_CALLBACK_UNARY_PING_PONG_H
22 #define TEST_CPP_MICROBENCHMARKS_CALLBACK_UNARY_PING_PONG_H
23 
24 #include <benchmark/benchmark.h>
25 #include <sstream>
26 #include "src/core/lib/profiling/timers.h"
27 #include "src/proto/grpc/testing/echo.grpc.pb.h"
28 #include "test/cpp/microbenchmarks/callback_test_service.h"
29 #include "test/cpp/microbenchmarks/fullstack_context_mutators.h"
30 #include "test/cpp/microbenchmarks/fullstack_fixtures.h"
31 
32 namespace grpc {
33 namespace testing {
34 
35 /*******************************************************************************
36  * BENCHMARKING KERNELS
37  */
38 
SendCallbackUnaryPingPong(benchmark::State * state,ClientContext * cli_ctx,EchoRequest * request,EchoResponse * response,EchoTestService::Stub * stub_,bool * done,std::mutex * mu,std::condition_variable * cv)39 void SendCallbackUnaryPingPong(benchmark::State* state, ClientContext* cli_ctx,
40                                EchoRequest* request, EchoResponse* response,
41                                EchoTestService::Stub* stub_, bool* done,
42                                std::mutex* mu, std::condition_variable* cv) {
43   int response_msgs_size = state->range(1);
44   cli_ctx->AddMetadata(kServerMessageSize, grpc::to_string(response_msgs_size));
45   stub_->experimental_async()->Echo(
46       cli_ctx, request, response,
47       [state, cli_ctx, request, response, stub_, done, mu, cv](Status s) {
48         GPR_ASSERT(s.ok());
49         if (state->KeepRunning()) {
50           cli_ctx->~ClientContext();
51           new (cli_ctx) ClientContext();
52           SendCallbackUnaryPingPong(state, cli_ctx, request, response, stub_,
53                                     done, mu, cv);
54         } else {
55           std::lock_guard<std::mutex> l(*mu);
56           *done = true;
57           cv->notify_one();
58         }
59       });
60 };
61 
62 template <class Fixture, class ClientContextMutator, class ServerContextMutator>
BM_CallbackUnaryPingPong(benchmark::State & state)63 static void BM_CallbackUnaryPingPong(benchmark::State& state) {
64   int request_msgs_size = state.range(0);
65   int response_msgs_size = state.range(1);
66   CallbackStreamingTestService service;
67   std::unique_ptr<Fixture> fixture(new Fixture(&service));
68   std::unique_ptr<EchoTestService::Stub> stub_(
69       EchoTestService::NewStub(fixture->channel()));
70   EchoRequest request;
71   EchoResponse response;
72   ClientContext cli_ctx;
73 
74   if (request_msgs_size > 0) {
75     request.set_message(std::string(request_msgs_size, 'a'));
76   } else {
77     request.set_message("");
78   }
79 
80   std::mutex mu;
81   std::condition_variable cv;
82   bool done = false;
83   if (state.KeepRunning()) {
84     GPR_TIMER_SCOPE("BenchmarkCycle", 0);
85     SendCallbackUnaryPingPong(&state, &cli_ctx, &request, &response,
86                               stub_.get(), &done, &mu, &cv);
87   }
88   std::unique_lock<std::mutex> l(mu);
89   while (!done) {
90     cv.wait(l);
91   }
92   fixture->Finish(state);
93   fixture.reset();
94   state.SetBytesProcessed(request_msgs_size * state.iterations() +
95                           response_msgs_size * state.iterations());
96 }
97 
98 }  // namespace testing
99 }  // namespace grpc
100 
101 #endif  // TEST_CPP_MICROBENCHMARKS_FULLSTACK_UNARY_PING_PONG_H
102