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      1 /*
      2  *
      3  * Copyright 2016 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_FULLSTACK_UNARY_PING_PONG_H
     22 #define TEST_CPP_MICROBENCHMARKS_FULLSTACK_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/fullstack_context_mutators.h"
     29 #include "test/cpp/microbenchmarks/fullstack_fixtures.h"
     30 
     31 namespace grpc {
     32 namespace testing {
     33 
     34 /*******************************************************************************
     35  * BENCHMARKING KERNELS
     36  */
     37 
     38 static void* tag(intptr_t x) { return reinterpret_cast<void*>(x); }
     39 
     40 template <class Fixture, class ClientContextMutator, class ServerContextMutator>
     41 static void BM_UnaryPingPong(benchmark::State& state) {
     42   EchoTestService::AsyncService service;
     43   std::unique_ptr<Fixture> fixture(new Fixture(&service));
     44   EchoRequest send_request;
     45   EchoResponse send_response;
     46   EchoResponse recv_response;
     47   if (state.range(0) > 0) {
     48     send_request.set_message(std::string(state.range(0), 'a'));
     49   }
     50   if (state.range(1) > 0) {
     51     send_response.set_message(std::string(state.range(1), 'a'));
     52   }
     53   Status recv_status;
     54   struct ServerEnv {
     55     ServerContext ctx;
     56     EchoRequest recv_request;
     57     grpc::ServerAsyncResponseWriter<EchoResponse> response_writer;
     58     ServerEnv() : response_writer(&ctx) {}
     59   };
     60   uint8_t server_env_buffer[2 * sizeof(ServerEnv)];
     61   ServerEnv* server_env[2] = {
     62       reinterpret_cast<ServerEnv*>(server_env_buffer),
     63       reinterpret_cast<ServerEnv*>(server_env_buffer + sizeof(ServerEnv))};
     64   new (server_env[0]) ServerEnv;
     65   new (server_env[1]) ServerEnv;
     66   service.RequestEcho(&server_env[0]->ctx, &server_env[0]->recv_request,
     67                       &server_env[0]->response_writer, fixture->cq(),
     68                       fixture->cq(), tag(0));
     69   service.RequestEcho(&server_env[1]->ctx, &server_env[1]->recv_request,
     70                       &server_env[1]->response_writer, fixture->cq(),
     71                       fixture->cq(), tag(1));
     72   std::unique_ptr<EchoTestService::Stub> stub(
     73       EchoTestService::NewStub(fixture->channel()));
     74   while (state.KeepRunning()) {
     75     GPR_TIMER_SCOPE("BenchmarkCycle", 0);
     76     recv_response.Clear();
     77     ClientContext cli_ctx;
     78     ClientContextMutator cli_ctx_mut(&cli_ctx);
     79     std::unique_ptr<ClientAsyncResponseReader<EchoResponse>> response_reader(
     80         stub->AsyncEcho(&cli_ctx, send_request, fixture->cq()));
     81     response_reader->Finish(&recv_response, &recv_status, tag(4));
     82     void* t;
     83     bool ok;
     84     GPR_ASSERT(fixture->cq()->Next(&t, &ok));
     85     GPR_ASSERT(ok);
     86     GPR_ASSERT(t == tag(0) || t == tag(1));
     87     intptr_t slot = reinterpret_cast<intptr_t>(t);
     88     ServerEnv* senv = server_env[slot];
     89     ServerContextMutator svr_ctx_mut(&senv->ctx);
     90     senv->response_writer.Finish(send_response, Status::OK, tag(3));
     91     for (int i = (1 << 3) | (1 << 4); i != 0;) {
     92       GPR_ASSERT(fixture->cq()->Next(&t, &ok));
     93       GPR_ASSERT(ok);
     94       int tagnum = static_cast<int>(reinterpret_cast<intptr_t>(t));
     95       GPR_ASSERT(i & (1 << tagnum));
     96       i -= 1 << tagnum;
     97     }
     98     GPR_ASSERT(recv_status.ok());
     99 
    100     senv->~ServerEnv();
    101     senv = new (senv) ServerEnv();
    102     service.RequestEcho(&senv->ctx, &senv->recv_request, &senv->response_writer,
    103                         fixture->cq(), fixture->cq(), tag(slot));
    104   }
    105   fixture->Finish(state);
    106   fixture.reset();
    107   server_env[0]->~ServerEnv();
    108   server_env[1]->~ServerEnv();
    109   state.SetBytesProcessed(state.range(0) * state.iterations() +
    110                           state.range(1) * state.iterations());
    111 }
    112 }  // namespace testing
    113 }  // namespace grpc
    114 
    115 #endif  // TEST_CPP_MICROBENCHMARKS_FULLSTACK_UNARY_PING_PONG_H
    116