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/**
* (C) 2019 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
*
* @file client.cpp
*
* Created on: Jan 25, 2019
* Project: sdbus-c++
* Description: High-level D-Bus IPC C++ library based on sd-bus
*
* This file is part of sdbus-c++.
*
* sdbus-c++ is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* sdbus-c++ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "perftests-proxy.h"
#include <sdbus-c++/sdbus-c++.h>
#include <vector>
#include <string>
#include <iostream>
#include <unistd.h>
#include <thread>
#include <chrono>
#include <cassert>
#include <algorithm>
#include <iostream>
using namespace std::chrono_literals;
uint64_t totalDuration = 0;
class PerftestProxy final : public sdbus::ProxyInterfaces<org::sdbuscpp::perftests_proxy>
{
public:
PerftestProxy(std::string destination, std::string objectPath)
: ProxyInterfaces(std::move(destination), std::move(objectPath))
{
registerProxy();
}
~PerftestProxy()
{
unregisterProxy();
}
protected:
virtual void onDataSignal([[maybe_unused]] const std::string& data) override
{
static unsigned int counter = 0;
static std::chrono::time_point<std::chrono::steady_clock> startTime;
assert(data.size() == m_msgSize);
++counter;
if (counter == 1)
startTime = std::chrono::steady_clock::now();
else if (counter == m_msgCount)
{
auto stopTime = std::chrono::steady_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(stopTime - startTime).count();
totalDuration += duration;
std::cout << "Received " << m_msgCount << " signals in: " << duration << " ms" << std::endl;
counter = 0;
}
}
public:
unsigned int m_msgSize{};
unsigned int m_msgCount{};
};
std::string createRandomString(size_t length)
{
auto randchar = []() -> char
{
const char charset[] =
"0123456789"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz";
const size_t max_index = (sizeof(charset) - 1);
return charset[ rand() % max_index ];
};
std::string str(length, 0);
std::generate_n(str.begin(), length, randchar);
return str;
}
//-----------------------------------------
int main(int /*argc*/, char */*argv*/[])
{
const char* destinationName = "org.sdbuscpp.perftests";
const char* objectPath = "/org/sdbuscpp/perftests";
PerftestProxy client(destinationName, objectPath);
const unsigned int repetitions{20};
unsigned int msgCount = 1000;
unsigned int msgSize{};
msgSize = 20;
std::cout << "** Measuring signals of size " << msgSize << " bytes (" << repetitions << " repetitions)..." << std::endl << std::endl;
client.m_msgCount = msgCount; client.m_msgSize = msgSize;
for (unsigned int r = 0; r < repetitions; ++r)
{
client.sendDataSignals(msgCount, msgSize);
std::this_thread::sleep_for(1000ms);
}
std::cout << "AVERAGE: " << (totalDuration/repetitions) << " ms" << std::endl;
totalDuration = 0;
msgSize = 1000;
std::cout << std::endl << "** Measuring signals of size " << msgSize << " bytes (" << repetitions << " repetitions)..." << std::endl << std::endl;
client.m_msgCount = msgCount; client.m_msgSize = msgSize;
for (unsigned int r = 0; r < repetitions; ++r)
{
client.sendDataSignals(msgCount, msgSize);
std::this_thread::sleep_for(1000ms);
}
std::cout << "AVERAGE: " << (totalDuration/repetitions) << " ms" << std::endl;
totalDuration = 0;
msgSize = 20;
std::cout << std::endl << "** Measuring method calls of size " << msgSize << " bytes (" << repetitions << " repetitions)..." << std::endl << std::endl;
for (unsigned int r = 0; r < repetitions; ++r)
{
auto str1 = createRandomString(msgSize/2);
auto str2 = createRandomString(msgSize/2);
auto startTime = std::chrono::steady_clock::now();
for (unsigned int i = 0; i < msgCount; i++)
{
auto result = client.concatenateTwoStrings(str1, str2);
assert(result.size() == str1.size() + str2.size());
assert(result.size() == msgSize);
}
auto stopTime = std::chrono::steady_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(stopTime - startTime).count();
totalDuration += duration;
std::cout << "Called " << msgCount << " methods in: " << duration << " ms" << std::endl;
std::this_thread::sleep_for(1000ms);
}
std::cout << "AVERAGE: " << (totalDuration/repetitions) << " ms" << std::endl;
totalDuration = 0;
msgSize = 1000;
std::cout << std::endl << "** Measuring method calls of size " << msgSize << " bytes (" << repetitions << " repetitions)..." << std::endl << std::endl;
for (unsigned int r = 0; r < repetitions; ++r)
{
auto str1 = createRandomString(msgSize/2);
auto str2 = createRandomString(msgSize/2);
auto startTime = std::chrono::steady_clock::now();
for (unsigned int i = 0; i < msgCount; i++)
{
auto result = client.concatenateTwoStrings(str1, str2);
assert(result.size() == str1.size() + str2.size());
assert(result.size() == msgSize);
}
auto stopTime = std::chrono::steady_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(stopTime - startTime).count();
totalDuration += duration;
std::cout << "Called " << msgCount << " methods in: " << duration << " ms" << std::endl;
std::this_thread::sleep_for(1000ms);
}
std::cout << "AVERAGE: " << (totalDuration/repetitions) << " ms" << std::endl;
totalDuration = 0;
return 0;
}
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