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dbms: benchmark: added randomization option [#METR-2944].

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This commit is contained in:
Alexey Milovidov 2016-01-12 05:55:39 +03:00
parent d7cc44ff3d
commit 14d24a3eab
1 changed files with 24 additions and 1 deletions
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25
dbms/src/Client/Benchmark.cpp
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@ -2,10 +2,12 @@
#include <stdlib.h>
#include <fcntl.h>
#include <signal.h>
#include <time.h>
#include <iostream>
#include <fstream>
#include <iomanip>
#include <random>
#include <Poco/File.h>
#include <Poco/SharedPtr.h>
@ -45,15 +47,24 @@
namespace DB
{
namespace ErrorCodes
{
extern const int POCO_EXCEPTION;
extern const int STD_EXCEPTION;
extern const int UNKNOWN_EXCEPTION;
}
class Benchmark
{
public:
Benchmark(unsigned concurrency_, double delay_,
const String & host_, UInt16 port_, const String & default_database_,
const String & user_, const String & password_, const String & stage,
bool randomize_,
const Settings & settings_)
: concurrency(concurrency_), delay(delay_), queue(concurrency),
connections(concurrency, host_, port_, default_database_, user_, password_),
randomize(randomize_),
settings(settings_), pool(concurrency)
{
std::cerr << std::fixed << std::setprecision(3);
@ -84,6 +95,7 @@ private:
Queue queue;
ConnectionPool connections;
bool randomize;
Settings settings;
QueryProcessingStage::Enum query_processing_stage;
@ -161,6 +173,11 @@ private:
void run()
{
timespec current_clock;
clock_gettime(CLOCK_MONOTONIC, &current_clock);
std::mt19937 generator(current_clock.tv_nsec);
std::uniform_int_distribution<size_t> distribution(0, queries.size() - 1);
for (size_t i = 0; i < concurrency; ++i)
pool.schedule(std::bind(&Benchmark::thread, this, connections.IConnectionPool::get()));
@ -175,7 +192,11 @@ private:
if (i >= queries.size())
i = 0;
queue.push(queries[i]);
size_t query_index = randomize
? distribution(generator)
: i;
queue.push(queries[query_index]);
if (watch.elapsedSeconds() > delay)
{
@ -336,6 +357,7 @@ int main(int argc, char ** argv)
("password", boost::program_options::value<std::string>()->default_value(""), "")
("database", boost::program_options::value<std::string>()->default_value("default"), "")
("stage", boost::program_options::value<std::string>()->default_value("complete"), "request query processing up to specified stage")
("randomize,r", boost::program_options::value<bool>()->default_value(false), "randomize order of execution")
#define DECLARE_SETTING(TYPE, NAME, DEFAULT) (#NAME, boost::program_options::value<std::string> (), "Settings.h")
#define DECLARE_LIMIT(TYPE, NAME, DEFAULT) (#NAME, boost::program_options::value<std::string> (), "Limits.h")
APPLY_FOR_SETTINGS(DECLARE_SETTING)
@ -373,6 +395,7 @@ int main(int argc, char ** argv)
options["user"].as<std::string>(),
options["password"].as<std::string>(),
options["stage"].as<std::string>(),
options["randomize"].as<bool>(),
settings);
}
catch (const Exception & e)