test/cpp/qps/qps_json_driver.cc - third_party/grpc - Git at Google

 /*
  *
  * Copyright 2015-2016 gRPC authors.
  *
  * Licensed 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.
  *
  */

 #include <fstream>
 #include <iostream>
 #include <memory>
 #include <set>

 #include <grpc++/impl/codegen/config_protobuf.h>

 #include <gflags/gflags.h>
 #include <grpc/support/log.h>

 #include "test/cpp/qps/benchmark_config.h"
 #include "test/cpp/qps/driver.h"
 #include "test/cpp/qps/parse_json.h"
 #include "test/cpp/qps/report.h"
 #include "test/cpp/util/test_config.h"
 #include "test/cpp/util/test_credentials_provider.h"

 DEFINE_string(scenarios_file, "",
               "JSON file containing an array of Scenario objects");
 DEFINE_string(scenarios_json, "",
               "JSON string containing an array of Scenario objects");
 DEFINE_bool(quit, false, "Quit the workers");
 DEFINE_string(search_param, "",
               "The parameter, whose value is to be searched for to achieve "
               "targeted cpu load. For now, we have 'offered_load'. Later, "
               "'num_channels', 'num_outstanding_requests', etc. shall be "
               "added.");
 DEFINE_double(
     initial_search_value, 0.0,
     "initial parameter value to start the search with (i.e. lower bound)");
 DEFINE_double(targeted_cpu_load, 70.0,
               "Targeted cpu load (unit: %, range [0,100])");
 DEFINE_double(stride, 1,
               "Defines each stride of the search. The larger the stride is, "
               "the coarser the result will be, but will also be faster.");
 DEFINE_double(error_tolerance, 0.01,
               "Defines threshold for stopping the search. When current search "
               "range is narrower than the error_tolerance computed range, we "
               "stop the search.");

 DEFINE_string(qps_server_target_override, "",
               "Override QPS server target to configure in client configs."
               "Only applicable if there is a single benchmark server.");

 DEFINE_string(json_file_out, "", "File to write the JSON output to.");

 DEFINE_string(credential_type, grpc::testing::kInsecureCredentialsType,
               "Credential type for communication with workers");

 namespace grpc {
 namespace testing {

 static std::unique_ptr<ScenarioResult> RunAndReport(const Scenario& scenario,
                                                     bool* success) {
   std::cerr << "RUNNING SCENARIO: " << scenario.name() << "\n";
   auto result =
       RunScenario(scenario.client_config(), scenario.num_clients(),
                   scenario.server_config(), scenario.num_servers(),
                   scenario.warmup_seconds(), scenario.benchmark_seconds(),
                   scenario.spawn_local_worker_count(),
                   FLAGS_qps_server_target_override, FLAGS_credential_type);

   // Amend the result with scenario config. Eventually we should adjust
   // RunScenario contract so we don't need to touch the result here.
   result->mutable_scenario()->CopyFrom(scenario);

   GetReporter()->ReportQPS(*result);
   GetReporter()->ReportQPSPerCore(*result);
   GetReporter()->ReportLatency(*result);
   GetReporter()->ReportTimes(*result);
   GetReporter()->ReportCpuUsage(*result);
   GetReporter()->ReportPollCount(*result);
   GetReporter()->ReportQueriesPerCpuSec(*result);

   for (int i = 0; *success && i < result->client_success_size(); i++) {
     *success = result->client_success(i);
   }
   for (int i = 0; *success && i < result->server_success_size(); i++) {
     *success = result->server_success(i);
   }

   if (FLAGS_json_file_out != "") {
     std::ofstream json_outfile;
     json_outfile.open(FLAGS_json_file_out);
     json_outfile << "{\"qps\": " << result->summary().qps() << "}\n";
     json_outfile.close();
   }

   return result;
 }

 static double GetCpuLoad(Scenario* scenario, double offered_load,
                          bool* success) {
   scenario->mutable_client_config()
       ->mutable_load_params()
       ->mutable_poisson()
       ->set_offered_load(offered_load);
   auto result = RunAndReport(*scenario, success);
   return result->summary().server_cpu_usage();
 }

 static double BinarySearch(Scenario* scenario, double targeted_cpu_load,
                            double low, double high, bool* success) {
   while (low <= high * (1 - FLAGS_error_tolerance)) {
     double mid = low + (high - low) / 2;
     double current_cpu_load = GetCpuLoad(scenario, mid, success);
     gpr_log(GPR_DEBUG, "Binary Search: current_offered_load %.0f", mid);
     if (!*success) {
       gpr_log(GPR_ERROR, "Client/Server Failure");
       break;
     }
     if (targeted_cpu_load <= current_cpu_load) {
       high = mid - FLAGS_stride;
     } else {
       low = mid + FLAGS_stride;
     }
   }

   return low;
 }

 static double SearchOfferedLoad(double initial_offered_load,
                                 double targeted_cpu_load, Scenario* scenario,
                                 bool* success) {
   std::cerr << "RUNNING SCENARIO: " << scenario->name() << "\n";
   double current_offered_load = initial_offered_load;
   double current_cpu_load = GetCpuLoad(scenario, current_offered_load, success);
   if (current_cpu_load > targeted_cpu_load) {
     gpr_log(GPR_ERROR, "Initial offered load too high");
     return -1;
   }

   while (*success && (current_cpu_load < targeted_cpu_load)) {
     current_offered_load *= 2;
     current_cpu_load = GetCpuLoad(scenario, current_offered_load, success);
     gpr_log(GPR_DEBUG, "Binary Search: current_offered_load  %.0f",
             current_offered_load);
   }

   double targeted_offered_load =
       BinarySearch(scenario, targeted_cpu_load, current_offered_load / 2,
                    current_offered_load, success);

   return targeted_offered_load;
 }

 static bool QpsDriver() {
   grpc::string json;

   bool scfile = (FLAGS_scenarios_file != "");
   bool scjson = (FLAGS_scenarios_json != "");
   if ((!scfile && !scjson && !FLAGS_quit) ||
       (scfile && (scjson || FLAGS_quit)) || (scjson && FLAGS_quit)) {
     gpr_log(GPR_ERROR,
             "Exactly one of --scenarios_file, --scenarios_json, "
             "or --quit must be set");
     abort();
   }

   if (scfile) {
     // Read the json data from disk
     FILE* json_file = fopen(FLAGS_scenarios_file.c_str(), "r");
     GPR_ASSERT(json_file != NULL);
     fseek(json_file, 0, SEEK_END);
     long len = ftell(json_file);
     char* data = new char[len];
     fseek(json_file, 0, SEEK_SET);
     GPR_ASSERT(len == (long)fread(data, 1, len, json_file));
     fclose(json_file);
     json = grpc::string(data, data + len);
     delete[] data;
   } else if (scjson) {
     json = FLAGS_scenarios_json.c_str();
   } else if (FLAGS_quit) {
     return RunQuit(FLAGS_credential_type);
   }

   // Parse into an array of scenarios
   Scenarios scenarios;
   ParseJson(json.c_str(), "grpc.testing.Scenarios", &scenarios);
   bool success = true;

   // Make sure that there is at least some valid scenario here
   GPR_ASSERT(scenarios.scenarios_size() > 0);

   for (int i = 0; i < scenarios.scenarios_size(); i++) {
     if (FLAGS_search_param == "") {
       const Scenario& scenario = scenarios.scenarios(i);
       RunAndReport(scenario, &success);
     } else {
       if (FLAGS_search_param == "offered_load") {
         Scenario* scenario = scenarios.mutable_scenarios(i);
         double targeted_offered_load =
             SearchOfferedLoad(FLAGS_initial_search_value,
                               FLAGS_targeted_cpu_load, scenario, &success);
         gpr_log(GPR_INFO, "targeted_offered_load %f", targeted_offered_load);
         GetCpuLoad(scenario, targeted_offered_load, &success);
       } else {
         gpr_log(GPR_ERROR, "Unimplemented search param");
       }
     }
   }
   return success;
 }

 }  // namespace testing
 }  // namespace grpc

 int main(int argc, char** argv) {
   grpc::testing::InitTest(&argc, &argv, true);

   bool ok = grpc::testing::QpsDriver();

   return ok ? 0 : 1;
 }
	/*
	*
	* Copyright 2015-2016 gRPC authors.
	*
	* Licensed 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.
	*
	*/

	#include <fstream>
	#include <iostream>
	#include <memory>
	#include <set>

	#include <grpc++/impl/codegen/config_protobuf.h>

	#include <gflags/gflags.h>
	#include <grpc/support/log.h>

	#include "test/cpp/qps/benchmark_config.h"
	#include "test/cpp/qps/driver.h"
	#include "test/cpp/qps/parse_json.h"
	#include "test/cpp/qps/report.h"
	#include "test/cpp/util/test_config.h"
	#include "test/cpp/util/test_credentials_provider.h"

	DEFINE_string(scenarios_file, "",
	"JSON file containing an array of Scenario objects");
	DEFINE_string(scenarios_json, "",
	"JSON string containing an array of Scenario objects");
	DEFINE_bool(quit, false, "Quit the workers");
	DEFINE_string(search_param, "",
	"The parameter, whose value is to be searched for to achieve "
	"targeted cpu load. For now, we have 'offered_load'. Later, "
	"'num_channels', 'num_outstanding_requests', etc. shall be "
	"added.");
	DEFINE_double(
	initial_search_value, 0.0,
	"initial parameter value to start the search with (i.e. lower bound)");
	DEFINE_double(targeted_cpu_load, 70.0,
	"Targeted cpu load (unit: %, range [0,100])");
	DEFINE_double(stride, 1,
	"Defines each stride of the search. The larger the stride is, "
	"the coarser the result will be, but will also be faster.");
	DEFINE_double(error_tolerance, 0.01,
	"Defines threshold for stopping the search. When current search "
	"range is narrower than the error_tolerance computed range, we "
	"stop the search.");

	DEFINE_string(qps_server_target_override, "",
	"Override QPS server target to configure in client configs."
	"Only applicable if there is a single benchmark server.");

	DEFINE_string(json_file_out, "", "File to write the JSON output to.");

	DEFINE_string(credential_type, grpc::testing::kInsecureCredentialsType,
	"Credential type for communication with workers");

	namespace grpc {
	namespace testing {

	static std::unique_ptr<ScenarioResult> RunAndReport(const Scenario& scenario,
	bool* success) {
	std::cerr << "RUNNING SCENARIO: " << scenario.name() << "\n";
	auto result =
	RunScenario(scenario.client_config(), scenario.num_clients(),
	scenario.server_config(), scenario.num_servers(),
	scenario.warmup_seconds(), scenario.benchmark_seconds(),
	scenario.spawn_local_worker_count(),
	FLAGS_qps_server_target_override, FLAGS_credential_type);

	// Amend the result with scenario config. Eventually we should adjust
	// RunScenario contract so we don't need to touch the result here.
	result->mutable_scenario()->CopyFrom(scenario);

	GetReporter()->ReportQPS(*result);
	GetReporter()->ReportQPSPerCore(*result);
	GetReporter()->ReportLatency(*result);
	GetReporter()->ReportTimes(*result);
	GetReporter()->ReportCpuUsage(*result);
	GetReporter()->ReportPollCount(*result);
	GetReporter()->ReportQueriesPerCpuSec(*result);

	for (int i = 0; *success && i < result->client_success_size(); i++) {
	*success = result->client_success(i);
	}
	for (int i = 0; *success && i < result->server_success_size(); i++) {
	*success = result->server_success(i);
	}

	if (FLAGS_json_file_out != "") {
	std::ofstream json_outfile;
	json_outfile.open(FLAGS_json_file_out);
	json_outfile << "{\"qps\": " << result->summary().qps() << "}\n";
	json_outfile.close();
	}

	return result;
	}

	static double GetCpuLoad(Scenario* scenario, double offered_load,
	bool* success) {
	scenario->mutable_client_config()
	->mutable_load_params()
	->mutable_poisson()
	->set_offered_load(offered_load);
	auto result = RunAndReport(*scenario, success);
	return result->summary().server_cpu_usage();
	}

	static double BinarySearch(Scenario* scenario, double targeted_cpu_load,
	double low, double high, bool* success) {
	while (low <= high * (1 - FLAGS_error_tolerance)) {
	double mid = low + (high - low) / 2;
	double current_cpu_load = GetCpuLoad(scenario, mid, success);
	gpr_log(GPR_DEBUG, "Binary Search: current_offered_load %.0f", mid);
	if (!*success) {
	gpr_log(GPR_ERROR, "Client/Server Failure");
	break;
	}
	if (targeted_cpu_load <= current_cpu_load) {
	high = mid - FLAGS_stride;
	} else {
	low = mid + FLAGS_stride;
	}
	}

	return low;
	}

	static double SearchOfferedLoad(double initial_offered_load,
	double targeted_cpu_load, Scenario* scenario,
	bool* success) {
	std::cerr << "RUNNING SCENARIO: " << scenario->name() << "\n";
	double current_offered_load = initial_offered_load;
	double current_cpu_load = GetCpuLoad(scenario, current_offered_load, success);
	if (current_cpu_load > targeted_cpu_load) {
	gpr_log(GPR_ERROR, "Initial offered load too high");
	return -1;
	}

	while (*success && (current_cpu_load < targeted_cpu_load)) {
	current_offered_load *= 2;
	current_cpu_load = GetCpuLoad(scenario, current_offered_load, success);
	gpr_log(GPR_DEBUG, "Binary Search: current_offered_load %.0f",
	current_offered_load);
	}

	double targeted_offered_load =
	BinarySearch(scenario, targeted_cpu_load, current_offered_load / 2,
	current_offered_load, success);

	return targeted_offered_load;
	}

	static bool QpsDriver() {
	grpc::string json;

	bool scfile = (FLAGS_scenarios_file != "");
	bool scjson = (FLAGS_scenarios_json != "");
	if ((!scfile && !scjson && !FLAGS_quit) \|\|
	(scfile && (scjson \|\| FLAGS_quit)) \|\| (scjson && FLAGS_quit)) {
	gpr_log(GPR_ERROR,
	"Exactly one of --scenarios_file, --scenarios_json, "
	"or --quit must be set");
	abort();
	}

	if (scfile) {
	// Read the json data from disk
	FILE* json_file = fopen(FLAGS_scenarios_file.c_str(), "r");
	GPR_ASSERT(json_file != NULL);
	fseek(json_file, 0, SEEK_END);
	long len = ftell(json_file);
	char* data = new char[len];
	fseek(json_file, 0, SEEK_SET);
	GPR_ASSERT(len == (long)fread(data, 1, len, json_file));
	fclose(json_file);
	json = grpc::string(data, data + len);
	delete[] data;
	} else if (scjson) {
	json = FLAGS_scenarios_json.c_str();
	} else if (FLAGS_quit) {
	return RunQuit(FLAGS_credential_type);
	}

	// Parse into an array of scenarios
	Scenarios scenarios;
	ParseJson(json.c_str(), "grpc.testing.Scenarios", &scenarios);
	bool success = true;

	// Make sure that there is at least some valid scenario here
	GPR_ASSERT(scenarios.scenarios_size() > 0);

	for (int i = 0; i < scenarios.scenarios_size(); i++) {
	if (FLAGS_search_param == "") {
	const Scenario& scenario = scenarios.scenarios(i);
	RunAndReport(scenario, &success);
	} else {
	if (FLAGS_search_param == "offered_load") {
	Scenario* scenario = scenarios.mutable_scenarios(i);
	double targeted_offered_load =
	SearchOfferedLoad(FLAGS_initial_search_value,
	FLAGS_targeted_cpu_load, scenario, &success);
	gpr_log(GPR_INFO, "targeted_offered_load %f", targeted_offered_load);
	GetCpuLoad(scenario, targeted_offered_load, &success);
	} else {
	gpr_log(GPR_ERROR, "Unimplemented search param");
	}
	}
	}
	return success;
	}

	} // namespace testing
	} // namespace grpc

	int main(int argc, char** argv) {
	grpc::testing::InitTest(&argc, &argv, true);

	bool ok = grpc::testing::QpsDriver();

	return ok ? 0 : 1;
	}