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-rw-r--r--test/cpp/qps/latency_vs_load.cc189
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diff --git a/test/cpp/qps/latency_vs_load.cc b/test/cpp/qps/latency_vs_load.cc
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--- a/test/cpp/qps/latency_vs_load.cc
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-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-#include <memory>
-#include <set>
-
-#include <grpc++/impl/codegen/config_protobuf.h>
-
-#include <gflags/gflags.h>
-#include <grpc/support/log.h>
-
-#include "test/cpp/qps/driver.h"
-#include "test/cpp/qps/parse_json.h"
-#include "test/cpp/qps/report.h"
-#include "test/cpp/util/benchmark_config.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_double(initial_offered_load, 1000.0, "Set up for intial offered load");
-
-DEFINE_double(targeted_cpu_load, 99.0, "targeted cpu load");
-
-namespace grpc {
-namespace testing {
-
-static double GetCpuLoad(Scenario * scenario, double offered_load) {
- scenario->mutable_client_config()->mutable_load_params()->mutable_poisson()->
- set_offered_load(offered_load);
- 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());
-
- GetReporter()->ReportQPS(*result);
- GetReporter()->ReportQPSPerCore(*result);
- GetReporter()->ReportLatency(*result);
- GetReporter()->ReportTimes(*result);
- GetReporter()->ReportCpuUsage(*result);
-
- bool success = true;
- 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);
- }
-
- return success ? result->summary().server_cpu_usage() : -1;
-}
-
-static double BinarySearch(Scenario * scenario, double targeted_cpu_load,
- double low_offered_load, double high_offered_load) {
- int low = int(low_offered_load);
- int high = int(high_offered_load);
- while (low <= high - 500) {
- int mid = low + (high - low) /2;
- double current_cpu_load = GetCpuLoad(scenario, double(mid));
- gpr_log(GPR_INFO, "binary search: current_offered_load %d", mid);
- if (targeted_cpu_load < current_cpu_load) {
- high = mid -1;
- }
- else if (targeted_cpu_load > current_cpu_load) {
- low = mid + 1;
- }
- else {
- high = mid - 1;
- }
- }
-
- return double(low);
-}
-
-static double SearchOfferedLoad(double initial_offered_load, double targeted_cpu_load,
- Scenario * scenario) {
- std::cerr << "RUNNING SCENARIO: " << scenario->name() << "\n";
- double current_offered_load = initial_offered_load;
- double current_cpu_load = GetCpuLoad(scenario, current_offered_load);
- if (current_cpu_load > targeted_cpu_load) {
- gpr_log(GPR_ERROR, "Initial offered load too high");
- return -1;
- }
-
- do {
- current_offered_load *= 2;
- current_cpu_load = GetCpuLoad(scenario, current_offered_load);
- gpr_log(GPR_INFO, "do while: current_offered_load %f", current_offered_load);
- } while (current_cpu_load < targeted_cpu_load);
-
- double targeted_offered_load = BinarySearch(scenario, targeted_cpu_load,
- current_offered_load / 2,
- current_offered_load);
- gpr_log(GPR_INFO, "targeted_offered_load %f", targeted_offered_load);
-
- return targeted_offered_load;
-}
-
-static bool CpuLoadDriver() {
- 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();
- }
-
- // Parse into an array of scenarios
- Scenarios scenarios;
- ParseJson(json.c_str(), "grpc.testing.Scenarios", &scenarios);
-
- // Make sure that there is at least some valid scenario here
- GPR_ASSERT(scenarios.scenarios_size() > 0);
- bool success = true;
-
- for (int i = 0; i < scenarios.scenarios_size(); i++) {
- Scenario *scenario = scenarios.mutable_scenarios(i);
- SearchOfferedLoad(FLAGS_initial_offered_load, FLAGS_targeted_cpu_load, scenario);
- // GetCpuLoad(scenario, FLAGS_initial_offered_load);
- }
-
- return success;
-}
-
-} // namespace testing
-} // namespace grpc
-
-int main(int argc, char **argv) {
- grpc::testing::InitBenchmark(&argc, &argv, true);
-
- bool ok = grpc::testing::CpuLoadDriver();
-
- return ok ? 0 : 1;
-}
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