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cass_stress.cpp
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cass_stress.cpp
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#include "storage/cass_stress.h"
#include <stdlib.h>
#include <algorithm>
#include "common/base/timestamp.h"
#include "common/idl/message_types.h"
#include "storage/cass_driver.h"
#include "storage/random_message.h"
#include "thirdparty/gflags/gflags.h"
DECLARE_string(contact_ip_and_port);
DECLARE_string(log_level);
DECLARE_string(num_threads_io);
DECLARE_string(queue_size_io);
DECLARE_string(pending_req_low);
DECLARE_string(pending_req_high);
DECLARE_string(core_connections);
DECLARE_string(max_connections);
DEFINE_int32(operation_count, 10000, "Count of Operations");
DEFINE_int32(num_threads, 1, "Number of threads making requests");
DEFINE_int32(ops_per_batch, 1000,
"Num of queries executed asynchronously per thread");
namespace pushing {
CassStress::CassStress() {
work_done_ = false;
cass_driver_ = new CassDriver();
thread_status_arr_ = new ThreadStatus[FLAGS_num_threads];
for (int i = 0; i < FLAGS_num_threads; ++i) {
thread_status_arr_[i].count = 0;
}
latencies_ = new double[FLAGS_operation_count];
}
CassStress::~CassStress() {
delete [] thread_status_arr_;
delete [] latencies_;
delete cass_driver_;
}
void CassStress::Operate() {
auto joiner = NewFunctor([=]() {
stress_end_time_ = GetTimeStampInMs();
PrintResults();
boost::mutex::scoped_lock lock(mutex_);
work_done_ = true;
cond_.notify_one();
});
Functor<void>* finish = new JoinFunctor(FLAGS_num_threads, joiner);
stress_start_time_ = GetTimeStampInMs();
for (int i = 0; i < FLAGS_num_threads; ++i) {
boost::thread* thread = new boost::thread(&CassStress::ThreadFunc,
this, i, finish);
threads_.push_back(thread);
}
for (int i = 0; i < FLAGS_num_threads; ++i) {
threads_[i]->join();
delete threads_[i];
}
boost::mutex::scoped_lock locker(mutex_);
while (!work_done_) {
cond_.wait(locker);
}
}
void CassStress::ThreadFunc(int thread_index, Functor<void>* finish) {
thread_status_arr_[thread_index].joiner =
new JoinFunctor(FLAGS_operation_count/FLAGS_num_threads, finish);
int iteration_num =
FLAGS_operation_count / (FLAGS_num_threads * FLAGS_ops_per_batch);
for (int i = 0; i < iteration_num; ++i) {
thread_status_arr_[thread_index].batch_count = 0;
for (int j = 0; j < FLAGS_ops_per_batch/2; ++j) {
int array_index = thread_index * FLAGS_operation_count / FLAGS_num_threads
+ i * FLAGS_ops_per_batch + j * 2;
CallStore(thread_index, array_index);
//CallStore(thread_index, array_index + 1);
//CallRetrieve(thread_index, array_index);
CallRetrieve(thread_index, array_index + 1);
//boost::this_thread::sleep_for(boost::chrono::microseconds(100));
}
while (thread_status_arr_[thread_index].batch_count != FLAGS_ops_per_batch)
boost::this_thread::sleep_for(boost::chrono::microseconds(10));
}
}
void CassStress::CallStore(int thread_index, int array_index) {
Message message;
RandomMessage::GenerateMessage(&message);
CBMetadata* metadata = new CBMetadata();
metadata->array_index = array_index;
metadata->thread_index = thread_index;
metadata->obj_this = this;
auto store_cb = [](CassFuture* future, void* data) {
int64_t end_time = GetTimeStampInUs();
CBMetadata* meta = (CBMetadata*)data;
double latency = (end_time - meta->obj_this->latencies_[meta->array_index])
/ 1000.0;
meta->obj_this->latencies_[meta->array_index] = latency;
std::atomic_fetch_add(
&meta->obj_this->thread_status_arr_[meta->thread_index].batch_count, 1);
CassError rc = cass_future_error_code(future);
if (rc != CASS_OK)
meta->obj_this->cass_driver_->PrintError(future);
else
meta->obj_this->thread_status_arr_[meta->thread_index].count += 1;
meta->obj_this->thread_status_arr_[meta->thread_index].joiner->Run();
delete meta;
};
latencies_[array_index] = GetTimeStampInUs();
cass_driver_->Store(store_cb, message, metadata);
}
void CassStress::CallRetrieve(int thread_index, int array_index) {
std::string receiver;
RandomMessage::GenerateString(&receiver);
CassDriver::Wrapper* wrapper = new CassDriver::Wrapper();
wrapper->pmsgs = new std::vector<boost::shared_ptr<Message>>;
CBMetadata* metadata = new CBMetadata();
metadata->thread_index = thread_index;
metadata->array_index = array_index;
metadata->obj_this = this;
wrapper->cb_data = metadata;
auto retrieve_cb = [=](bool success, CassDriver::Wrapper* data) {
int64_t end_time = GetTimeStampInUs();
CBMetadata* meta = (CBMetadata*)data->cb_data;
double latency = (end_time - meta->obj_this->latencies_[meta->array_index])
/ 1000.0;
meta->obj_this->latencies_[meta->array_index] = latency;
std::atomic_fetch_add(
&meta->obj_this->thread_status_arr_[meta->thread_index].batch_count, 1);
if (success)
meta->obj_this->thread_status_arr_[meta->thread_index].count += 1;
meta->obj_this->thread_status_arr_[meta->thread_index].joiner->Run();
delete data->pmsgs;
delete meta;
delete data;
};
latencies_[array_index] = GetTimeStampInUs();
cass_driver_->Retrieve(retrieve_cb, receiver, wrapper);
}
double CassStress::RankLatency(double rank, double* arr, int size) {
int index = rank * size;
if (index > 0)
--index;
return arr[index];
}
void CassStress::PrintResults() {
int total_success = 0;
double total_latency = 0;
int64_t elapsed_ms = stress_end_time_ - stress_start_time_;
for (int i = 0; i < FLAGS_num_threads; ++i) {
total_success += thread_status_arr_[i].count;
}
for (int i = 0; i < FLAGS_operation_count; ++i) {
total_latency += latencies_[i];
}
std::sort(latencies_, latencies_ + FLAGS_operation_count);
printf("Operation count: %d\n", FLAGS_operation_count);
printf("Success count: %d\n", total_success);
printf("QPS: %ld\n", FLAGS_operation_count * 1000 / elapsed_ms);
printf("Average latency: %f ms\n", total_latency / FLAGS_operation_count);
printf("Min latency: %f ms\n", latencies_[0]);
printf(".95 latency: %f ms\n",
RankLatency(0.95, latencies_, FLAGS_operation_count));
printf(".99 latency: %f ms\n",
RankLatency(0.99, latencies_, FLAGS_operation_count));
printf(".999 latency: %f ms\n",
RankLatency(0.999, latencies_, FLAGS_operation_count));
printf("Max latency: %f ms\n", latencies_[FLAGS_operation_count - 1]);
for (int i = 0; i <= 100; ++i) {
printf("%d, %f\n", i, RankLatency(i/100.0, latencies_,
FLAGS_operation_count));
}
}
} // namespace pushing
using namespace pushing;
int main(int argc, char** argv) {
google::ParseCommandLineFlags(&argc, &argv, false);
RandomMessage::PrepareRowKeySet();
CassStress cass_stress;
cass_stress.Operate();
return 0;
}