tools/benchmark/benchmark_EventSystem.cc (72 lines of code) (raw):
/** @file
Micro Benchmark tool for Event System - requires Catch2 v2.9.0+
@section license License
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you 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.
*/
#define CATCH_CONFIG_ENABLE_BENCHMARKING
#define CATCH_CONFIG_RUNNER
#include "catch.hpp"
#include "iocore/eventsystem/Continuation.h"
#include "iocore/eventsystem/EventSystem.h"
#include "iocore/eventsystem/Lock.h"
#include "iocore/utils/diags.i"
#include "tscore/Layout.h"
#include "tscore/TSSystemState.h"
namespace
{
// Args
int nevents = 1;
int nthreads = 1;
std::atomic<int> counter = 0;
struct Task : public Continuation {
Task() : Continuation(new_ProxyMutex()) { SET_HANDLER(&Task::event_handler); }
int
event_handler(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
{
++counter;
if (counter == nevents) {
TSSystemState::shut_down_event_system();
}
return 0;
}
};
} // namespace
TEST_CASE("event process benchmark", "")
{
char name[64];
snprintf(name, sizeof(name), "nevents = %d nthreads = %d", nevents, nthreads);
BENCHMARK(name)
{
REQUIRE(!TSSystemState::is_initializing());
for (int i = 0; i < nevents; ++i) {
Task *t = new Task();
eventProcessor.schedule_in(t, 0);
}
while (!TSSystemState::is_event_system_shut_down()) {
sleep(1);
}
};
}
struct EventProcessorListener : Catch::TestEventListenerBase {
using TestEventListenerBase::TestEventListenerBase;
void
testRunStarting(Catch::TestRunInfo const & /* testRunInfo ATS_UNUSED */) override
{
Layout::create();
init_diags("", nullptr);
RecProcessInit();
ink_event_system_init(EVENT_SYSTEM_MODULE_PUBLIC_VERSION);
eventProcessor.start(nthreads, 1048576); // Hardcoded stacksize at 1MB
EThread *main_thread = new EThread;
main_thread->set_specific();
TSSystemState::initialization_done();
}
};
CATCH_REGISTER_LISTENER(EventProcessorListener);
int
main(int argc, char *argv[])
{
Catch::Session session;
using namespace Catch::clara;
auto cli = session.cli() | Opt(nevents, "n")["--ts-nevents"]("number of events (default: 1)\n") |
Opt(nthreads, "n")["--ts-nthreads"]("number of ethreads (default: 1)\n");
session.cli(cli);
if (int res = session.applyCommandLine(argc, argv); res != 0) {
return res;
}
return session.run();
}