aboutsummaryrefslogtreecommitdiffhomepage
path: root/test/cpp/qps/driver.cc
blob: 04b2b453f9e0604072d18e485d320d487afa17ef (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
/*
 *
 * Copyright 2015, 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 <deque>
#include <list>
#include <thread>
#include <unordered_map>
#include <vector>

#include <grpc++/channel.h>
#include <grpc++/client_context.h>
#include <grpc++/create_channel.h>
#include <grpc/support/alloc.h>
#include <grpc/support/host_port.h>
#include <grpc/support/log.h>
#include <gtest/gtest.h>

#include "src/core/lib/support/env.h"
#include "src/proto/grpc/testing/services.grpc.pb.h"
#include "test/core/util/port.h"
#include "test/core/util/test_config.h"
#include "test/cpp/qps/driver.h"
#include "test/cpp/qps/histogram.h"
#include "test/cpp/qps/qps_worker.h"
#include "test/cpp/qps/stats.h"

using std::list;
using std::thread;
using std::unique_ptr;
using std::deque;
using std::vector;

namespace grpc {
namespace testing {
static std::string get_host(const std::string& worker) {
  char* host;
  char* port;

  gpr_split_host_port(worker.c_str(), &host, &port);
  const string s(host);

  gpr_free(host);
  gpr_free(port);
  return s;
}

static std::unordered_map<string, std::deque<int>> get_hosts_and_cores(
    const deque<string>& workers) {
  std::unordered_map<string, std::deque<int>> hosts;
  for (auto it = workers.begin(); it != workers.end(); it++) {
    const string host = get_host(*it);
    if (hosts.find(host) == hosts.end()) {
      auto stub = WorkerService::NewStub(
          CreateChannel(*it, InsecureChannelCredentials()));
      grpc::ClientContext ctx;
      ctx.set_fail_fast(false);
      CoreRequest dummy;
      CoreResponse cores;
      grpc::Status s = stub->CoreCount(&ctx, dummy, &cores);
      assert(s.ok());
      std::deque<int> dq;
      for (int i = 0; i < cores.cores(); i++) {
        dq.push_back(i);
      }
      hosts[host] = dq;
    }
  }
  return hosts;
}

static deque<string> get_workers(const string& name) {
  char* env = gpr_getenv(name.c_str());
  if (!env) return deque<string>();

  deque<string> out;
  char* p = env;
  for (;;) {
    char* comma = strchr(p, ',');
    if (comma) {
      out.emplace_back(p, comma);
      p = comma + 1;
    } else {
      out.emplace_back(p);
      gpr_free(env);
      return out;
    }
  }
}

// helpers for postprocess_scenario_result
static double WallTime(ClientStats s) { return s.time_elapsed(); }
static double SystemTime(ClientStats s) { return s.time_system(); }
static double UserTime(ClientStats s) { return s.time_user(); }
static double ServerWallTime(ServerStats s) { return s.time_elapsed(); }
static double ServerSystemTime(ServerStats s) { return s.time_system(); }
static double ServerUserTime(ServerStats s) { return s.time_user(); }
static int Cores(int n) { return n; }

// Postprocess ScenarioResult and populate result summary.
static void postprocess_scenario_result(ScenarioResult* result) {
  Histogram histogram;
  histogram.MergeProto(result->latencies());

  auto qps = histogram.Count() / average(result->client_stats(), WallTime);
  auto qps_per_server_core = qps / sum(result->server_cores(), Cores);

  result->mutable_summary()->set_qps(qps);
  result->mutable_summary()->set_qps_per_server_core(qps_per_server_core);
  result->mutable_summary()->set_latency_50(histogram.Percentile(50));
  result->mutable_summary()->set_latency_90(histogram.Percentile(90));
  result->mutable_summary()->set_latency_95(histogram.Percentile(95));
  result->mutable_summary()->set_latency_99(histogram.Percentile(99));
  result->mutable_summary()->set_latency_999(histogram.Percentile(99.9));

  auto server_system_time = 100.0 *
                            sum(result->server_stats(), ServerSystemTime) /
                            sum(result->server_stats(), ServerWallTime);
  auto server_user_time = 100.0 * sum(result->server_stats(), ServerUserTime) /
                          sum(result->server_stats(), ServerWallTime);
  auto client_system_time = 100.0 * sum(result->client_stats(), SystemTime) /
                            sum(result->client_stats(), WallTime);
  auto client_user_time = 100.0 * sum(result->client_stats(), UserTime) /
                          sum(result->client_stats(), WallTime);

  result->mutable_summary()->set_server_system_time(server_system_time);
  result->mutable_summary()->set_server_user_time(server_user_time);
  result->mutable_summary()->set_client_system_time(client_system_time);
  result->mutable_summary()->set_client_user_time(client_user_time);
}

// Namespace for classes and functions used only in RunScenario
// Using this rather than local definitions to workaround gcc-4.4 limitations
// regarding using templates without linkage
namespace runsc {

// ClientContext allocator
static ClientContext* AllocContext(list<ClientContext>* contexts) {
  contexts->emplace_back();
  auto context = &contexts->back();
  context->set_fail_fast(false);
  return context;
}

struct ServerData {
  unique_ptr<WorkerService::Stub> stub;
  unique_ptr<ClientReaderWriter<ServerArgs, ServerStatus>> stream;
};

struct ClientData {
  unique_ptr<WorkerService::Stub> stub;
  unique_ptr<ClientReaderWriter<ClientArgs, ClientStatus>> stream;
};
}  // namespace runsc

std::unique_ptr<ScenarioResult> RunScenario(
    const ClientConfig& initial_client_config, size_t num_clients,
    const ServerConfig& initial_server_config, size_t num_servers,
    int warmup_seconds, int benchmark_seconds, int spawn_local_worker_count) {
  // ClientContext allocations (all are destroyed at scope exit)
  list<ClientContext> contexts;

  // To be added to the result, containing the final configuration used for
  // client and config (including host, etc.)
  ClientConfig result_client_config;
  const ServerConfig result_server_config = initial_server_config;

  // Get client, server lists
  auto workers = get_workers("QPS_WORKERS");
  ClientConfig client_config = initial_client_config;

  // Spawn some local workers if desired
  vector<unique_ptr<QpsWorker>> local_workers;
  for (int i = 0; i < abs(spawn_local_worker_count); i++) {
    // act as if we're a new test -- gets a good rng seed
    static bool called_init = false;
    if (!called_init) {
      char args_buf[100];
      strcpy(args_buf, "some-benchmark");
      char* args[] = {args_buf};
      grpc_test_init(1, args);
      called_init = true;
    }

    int driver_port = grpc_pick_unused_port_or_die();
    local_workers.emplace_back(new QpsWorker(driver_port));
    char addr[256];
    sprintf(addr, "localhost:%d", driver_port);
    if (spawn_local_worker_count < 0) {
      workers.push_front(addr);
    } else {
      workers.push_back(addr);
    }
  }

  // Setup the hosts and core counts
  auto hosts_cores = get_hosts_and_cores(workers);

  // if num_clients is set to <=0, do dynamic sizing: all workers
  // except for servers are clients
  if (num_clients <= 0) {
    num_clients = workers.size() - num_servers;
  }

  // TODO(ctiller): support running multiple configurations, and binpack
  // client/server pairs
  // to available workers
  GPR_ASSERT(workers.size() >= num_clients + num_servers);

  // Trim to just what we need
  workers.resize(num_clients + num_servers);

  // Start servers
  using runsc::ServerData;
  // servers is array rather than std::vector to avoid gcc-4.4 issues
  // where class contained in std::vector must have a copy constructor
  auto* servers = new ServerData[num_servers];
  for (size_t i = 0; i < num_servers; i++) {
    gpr_log(GPR_INFO, "Starting server on %s (worker #%d)", workers[i].c_str(),
            i);
    servers[i].stub = WorkerService::NewStub(
        CreateChannel(workers[i], InsecureChannelCredentials()));

    ServerConfig server_config = initial_server_config;
    char* host;
    char* driver_port;
    char* cli_target;
    gpr_split_host_port(workers[i].c_str(), &host, &driver_port);
    string host_str(host);
    int server_core_limit = initial_server_config.core_limit();
    int client_core_limit = initial_client_config.core_limit();

    if (server_core_limit == 0 && client_core_limit > 0) {
      // In this case, limit the server cores if it matches the
      // same host as one or more clients
      const auto& dq = hosts_cores.at(host_str);
      bool match = false;
      int limit = dq.size();
      for (size_t cli = 0; cli < num_clients; cli++) {
        if (host_str == get_host(workers[cli + num_servers])) {
          limit -= client_core_limit;
          match = true;
        }
      }
      if (match) {
        GPR_ASSERT(limit > 0);
        server_core_limit = limit;
      }
    }
    if (server_core_limit > 0) {
      auto& dq = hosts_cores.at(host_str);
      GPR_ASSERT(dq.size() >= static_cast<size_t>(server_core_limit));
      for (int core = 0; core < server_core_limit; core++) {
        server_config.add_core_list(dq.front());
        dq.pop_front();
      }
    }

    ServerArgs args;
    *args.mutable_setup() = server_config;
    servers[i].stream =
        servers[i].stub->RunServer(runsc::AllocContext(&contexts));
    GPR_ASSERT(servers[i].stream->Write(args));
    ServerStatus init_status;
    GPR_ASSERT(servers[i].stream->Read(&init_status));
    gpr_join_host_port(&cli_target, host, init_status.port());
    client_config.add_server_targets(cli_target);
    gpr_free(host);
    gpr_free(driver_port);
    gpr_free(cli_target);
  }

  // Targets are all set by now
  result_client_config = client_config;
  // Start clients
  using runsc::ClientData;
  // clients is array rather than std::vector to avoid gcc-4.4 issues
  // where class contained in std::vector must have a copy constructor
  auto* clients = new ClientData[num_clients];
  for (size_t i = 0; i < num_clients; i++) {
    const auto& worker = workers[i + num_servers];
    gpr_log(GPR_INFO, "Starting client on %s (worker #%d)", worker.c_str(),
            i + num_servers);
    clients[i].stub = WorkerService::NewStub(
        CreateChannel(worker, InsecureChannelCredentials()));
    ClientConfig per_client_config = client_config;

    int server_core_limit = initial_server_config.core_limit();
    int client_core_limit = initial_client_config.core_limit();
    if ((server_core_limit > 0) || (client_core_limit > 0)) {
      auto& dq = hosts_cores.at(get_host(worker));
      if (client_core_limit == 0) {
        // limit client cores if it matches a server host
        bool match = false;
        int limit = dq.size();
        for (size_t srv = 0; srv < num_servers; srv++) {
          if (get_host(worker) == get_host(workers[srv])) {
            match = true;
          }
        }
        if (match) {
          GPR_ASSERT(limit > 0);
          client_core_limit = limit;
        }
      }
      if (client_core_limit > 0) {
        GPR_ASSERT(dq.size() >= static_cast<size_t>(client_core_limit));
        for (int core = 0; core < client_core_limit; core++) {
          per_client_config.add_core_list(dq.front());
          dq.pop_front();
        }
      }
    }

    ClientArgs args;
    *args.mutable_setup() = per_client_config;
    clients[i].stream =
        clients[i].stub->RunClient(runsc::AllocContext(&contexts));
    GPR_ASSERT(clients[i].stream->Write(args));
    ClientStatus init_status;
    GPR_ASSERT(clients[i].stream->Read(&init_status));
  }

  // Let everything warmup
  gpr_log(GPR_INFO, "Warming up");
  gpr_timespec start = gpr_now(GPR_CLOCK_REALTIME);
  gpr_sleep_until(
      gpr_time_add(start, gpr_time_from_seconds(warmup_seconds, GPR_TIMESPAN)));

  // Start a run
  gpr_log(GPR_INFO, "Starting");
  ServerArgs server_mark;
  server_mark.mutable_mark()->set_reset(true);
  ClientArgs client_mark;
  client_mark.mutable_mark()->set_reset(true);
  for (auto server = &servers[0]; server != &servers[num_servers]; server++) {
    GPR_ASSERT(server->stream->Write(server_mark));
  }
  for (auto client = &clients[0]; client != &clients[num_clients]; client++) {
    GPR_ASSERT(client->stream->Write(client_mark));
  }
  ServerStatus server_status;
  ClientStatus client_status;
  for (auto server = &servers[0]; server != &servers[num_servers]; server++) {
    GPR_ASSERT(server->stream->Read(&server_status));
  }
  for (auto client = &clients[0]; client != &clients[num_clients]; client++) {
    GPR_ASSERT(client->stream->Read(&client_status));
  }

  // Wait some time
  gpr_log(GPR_INFO, "Running");
  // Use gpr_sleep_until rather than this_thread::sleep_until to support
  // compilers that don't work with this_thread
  gpr_sleep_until(gpr_time_add(
      start,
      gpr_time_from_seconds(warmup_seconds + benchmark_seconds, GPR_TIMESPAN)));

  // Finish a run
  std::unique_ptr<ScenarioResult> result(new ScenarioResult);
  Histogram merged_latencies;

  gpr_log(GPR_INFO, "Finishing clients");
  for (auto client = &clients[0]; client != &clients[num_clients]; client++) {
    GPR_ASSERT(client->stream->Write(client_mark));
    GPR_ASSERT(client->stream->WritesDone());
  }
  for (auto client = &clients[0]; client != &clients[num_clients]; client++) {
    GPR_ASSERT(client->stream->Read(&client_status));
    const auto& stats = client_status.stats();
    merged_latencies.MergeProto(stats.latencies());
    result->add_client_stats()->CopyFrom(stats);
    GPR_ASSERT(!client->stream->Read(&client_status));
  }
  for (auto client = &clients[0]; client != &clients[num_clients]; client++) {
    GPR_ASSERT(client->stream->Finish().ok());
  }
  delete[] clients;

  merged_latencies.FillProto(result->mutable_latencies());

  gpr_log(GPR_INFO, "Finishing servers");
  for (auto server = &servers[0]; server != &servers[num_servers]; server++) {
    GPR_ASSERT(server->stream->Write(server_mark));
    GPR_ASSERT(server->stream->WritesDone());
  }
  for (auto server = &servers[0]; server != &servers[num_servers]; server++) {
    GPR_ASSERT(server->stream->Read(&server_status));
    result->add_server_stats()->CopyFrom(server_status.stats());
    result->add_server_cores(server_status.cores());
    GPR_ASSERT(!server->stream->Read(&server_status));
  }
  for (auto server = &servers[0]; server != &servers[num_servers]; server++) {
    GPR_ASSERT(server->stream->Finish().ok());
  }

  delete[] servers;

  postprocess_scenario_result(result.get());
  return result;
}

void RunQuit() {
  // Get client, server lists
  auto workers = get_workers("QPS_WORKERS");
  for (size_t i = 0; i < workers.size(); i++) {
    auto stub = WorkerService::NewStub(
        CreateChannel(workers[i], InsecureChannelCredentials()));
    Void dummy;
    grpc::ClientContext ctx;
    ctx.set_fail_fast(false);
    GPR_ASSERT(stub->QuitWorker(&ctx, dummy, &dummy).ok());
  }
}

}  // namespace testing
}  // namespace grpc