mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 05:32:52 +00:00
584 lines
20 KiB
C++
584 lines
20 KiB
C++
#include <port/unistd.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <time.h>
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#include <iostream>
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#include <fstream>
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#include <iomanip>
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#include <random>
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#include <pcg_random.hpp>
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#include <Poco/File.h>
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#include <Poco/Util/Application.h>
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#include <Common/Stopwatch.h>
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#include <Common/ThreadPool.h>
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#include <AggregateFunctions/ReservoirSampler.h>
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#include <AggregateFunctions/registerAggregateFunctions.h>
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#include <boost/program_options.hpp>
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#include <Common/ConcurrentBoundedQueue.h>
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#include <Common/Exception.h>
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#include <Common/randomSeed.h>
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#include <Core/Types.h>
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#include <IO/ReadBufferFromFileDescriptor.h>
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#include <IO/WriteBufferFromFileDescriptor.h>
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#include <IO/WriteBufferFromFile.h>
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#include <IO/ReadHelpers.h>
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#include <IO/WriteHelpers.h>
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#include <IO/Operators.h>
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#include <IO/ConnectionTimeouts.h>
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#include <IO/UseSSL.h>
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#include <DataStreams/RemoteBlockInputStream.h>
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#include <Interpreters/Context.h>
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#include <Client/Connection.h>
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#include <Common/InterruptListener.h>
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#include <Common/Config/configReadClient.h>
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#include <Common/TerminalSize.h>
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#include <Common/StudentTTest.h>
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/** A tool for evaluating ClickHouse performance.
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* The tool emulates a case with fixed amount of simultaneously executing queries.
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*/
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namespace DB
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{
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using Ports = std::vector<UInt16>;
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namespace ErrorCodes
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{
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extern const int BAD_ARGUMENTS;
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extern const int EMPTY_DATA_PASSED;
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}
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class Benchmark : public Poco::Util::Application
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{
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public:
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Benchmark(unsigned concurrency_, double delay_, Strings && hosts_, Ports && ports_,
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bool cumulative_, bool secure_, const String & default_database_,
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const String & user_, const String & password_, const String & stage,
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bool randomize_, size_t max_iterations_, double max_time_,
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const String & json_path_, size_t confidence_, const Settings & settings_)
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:
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concurrency(concurrency_), delay(delay_), queue(concurrency), randomize(randomize_),
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cumulative(cumulative_), max_iterations(max_iterations_), max_time(max_time_),
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confidence(confidence_), json_path(json_path_), settings(settings_),
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global_context(Context::createGlobal()), pool(concurrency)
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{
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const auto secure = secure_ ? Protocol::Secure::Enable : Protocol::Secure::Disable;
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size_t connections_cnt = std::max(ports_.size(), hosts_.size());
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connections.reserve(connections_cnt);
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comparison_info_total.reserve(connections_cnt);
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comparison_info_per_interval.reserve(connections_cnt);
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for (size_t i = 0; i < connections_cnt; ++i)
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{
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UInt16 cur_port = i >= ports_.size() ? 9000 : ports_[i];
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std::string cur_host = i >= hosts_.size() ? "localhost" : hosts_[i];
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connections.emplace_back(std::make_unique<ConnectionPool>(concurrency, cur_host, cur_port, default_database_, user_, password_, "benchmark", Protocol::Compression::Enable, secure));
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comparison_info_per_interval.emplace_back(std::make_shared<Stats>());
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comparison_info_total.emplace_back(std::make_shared<Stats>());
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}
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global_context.makeGlobalContext();
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std::cerr << std::fixed << std::setprecision(3);
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/// This is needed to receive blocks with columns of AggregateFunction data type
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/// (example: when using stage = 'with_mergeable_state')
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registerAggregateFunctions();
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if (stage == "complete")
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query_processing_stage = QueryProcessingStage::Complete;
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else if (stage == "fetch_columns")
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query_processing_stage = QueryProcessingStage::FetchColumns;
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else if (stage == "with_mergeable_state")
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query_processing_stage = QueryProcessingStage::WithMergeableState;
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else
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throw Exception("Unknown query processing stage: " + stage, ErrorCodes::BAD_ARGUMENTS);
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}
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void initialize(Poco::Util::Application & self [[maybe_unused]])
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{
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std::string home_path;
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const char * home_path_cstr = getenv("HOME");
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if (home_path_cstr)
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home_path = home_path_cstr;
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configReadClient(config(), home_path);
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}
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int main(const std::vector<std::string> &)
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{
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if (!json_path.empty() && Poco::File(json_path).exists()) /// Clear file with previous results
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Poco::File(json_path).remove();
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readQueries();
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runBenchmark();
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return 0;
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}
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private:
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using Entry = ConnectionPool::Entry;
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using EntryPtr = std::shared_ptr<Entry>;
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using EntryPtrs = std::vector<EntryPtr>;
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unsigned concurrency;
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double delay;
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using Query = std::string;
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using Queries = std::vector<Query>;
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Queries queries;
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using Queue = ConcurrentBoundedQueue<Query>;
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Queue queue;
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using ConnectionPoolUniq = std::unique_ptr<ConnectionPool>;
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using ConnectionPoolUniqs = std::vector<ConnectionPoolUniq>;
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ConnectionPoolUniqs connections;
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bool randomize;
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bool cumulative;
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size_t max_iterations;
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double max_time;
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size_t confidence;
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String json_path;
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Settings settings;
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Context global_context;
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QueryProcessingStage::Enum query_processing_stage;
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/// Don't execute new queries after timelimit or SIGINT or exception
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std::atomic<bool> shutdown{false};
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std::atomic<size_t> queries_executed{0};
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struct Stats
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{
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std::atomic<size_t> queries{0};
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size_t read_rows = 0;
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size_t read_bytes = 0;
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size_t result_rows = 0;
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size_t result_bytes = 0;
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double work_time = 0;
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using Sampler = ReservoirSampler<double>;
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Sampler sampler {1 << 16};
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void add(double seconds, size_t read_rows_inc, size_t read_bytes_inc, size_t result_rows_inc, size_t result_bytes_inc)
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{
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++queries;
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work_time += seconds;
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read_rows += read_rows_inc;
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read_bytes += read_bytes_inc;
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result_rows += result_rows_inc;
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result_bytes += result_bytes_inc;
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sampler.insert(seconds);
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}
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void clear()
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{
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queries = 0;
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work_time = 0;
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read_rows = 0;
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read_bytes = 0;
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result_rows = 0;
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result_bytes = 0;
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sampler.clear();
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}
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};
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using MultiStats = std::vector<std::shared_ptr<Stats>>;
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MultiStats comparison_info_per_interval;
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MultiStats comparison_info_total;
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StudentTTest t_test;
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Stopwatch total_watch;
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Stopwatch delay_watch;
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std::mutex mutex;
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ThreadPool pool;
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void readQueries()
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{
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ReadBufferFromFileDescriptor in(STDIN_FILENO);
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while (!in.eof())
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{
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std::string query;
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readText(query, in);
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assertChar('\n', in);
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if (!query.empty())
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queries.emplace_back(query);
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}
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if (queries.empty())
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throw Exception("Empty list of queries.", ErrorCodes::EMPTY_DATA_PASSED);
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std::cerr << "Loaded " << queries.size() << " queries.\n";
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}
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void printNumberOfQueriesExecuted(size_t num)
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{
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std::cerr << "\nQueries executed: " << num;
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if (queries.size() > 1)
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std::cerr << " (" << (num * 100.0 / queries.size()) << "%)";
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std::cerr << ".\n";
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}
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/// Try push new query and check cancellation conditions
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bool tryPushQueryInteractively(const String & query, InterruptListener & interrupt_listener)
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{
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bool inserted = false;
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while (!inserted)
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{
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inserted = queue.tryPush(query, 100);
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if (shutdown)
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{
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/// An exception occurred in a worker
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return false;
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}
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if (max_time > 0 && total_watch.elapsedSeconds() >= max_time)
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{
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std::cout << "Stopping launch of queries. Requested time limit is exhausted.\n";
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return false;
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}
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if (interrupt_listener.check())
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{
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std::cout << "Stopping launch of queries. SIGINT received.\n";
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return false;
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}
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if (delay > 0 && delay_watch.elapsedSeconds() > delay)
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{
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printNumberOfQueriesExecuted(queries_executed);
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cumulative ? report(comparison_info_total) : report(comparison_info_per_interval);
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delay_watch.restart();
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}
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}
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return true;
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}
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void runBenchmark()
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{
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pcg64 generator(randomSeed());
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std::uniform_int_distribution<size_t> distribution(0, queries.size() - 1);
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try
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{
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for (size_t i = 0; i < concurrency; ++i)
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{
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EntryPtrs connection_entries;
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connection_entries.reserve(connections.size());
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for (const auto & connection : connections)
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connection_entries.emplace_back(std::make_shared<Entry>(
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connection->get(ConnectionTimeouts::getTCPTimeoutsWithoutFailover(settings))));
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pool.scheduleOrThrowOnError(std::bind(&Benchmark::thread, this, connection_entries));
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}
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}
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catch (...)
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{
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pool.wait();
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throw;
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}
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InterruptListener interrupt_listener;
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delay_watch.restart();
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/// Push queries into queue
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for (size_t i = 0; !max_iterations || i < max_iterations; ++i)
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{
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size_t query_index = randomize ? distribution(generator) : i % queries.size();
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if (!tryPushQueryInteractively(queries[query_index], interrupt_listener))
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{
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shutdown = true;
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break;
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}
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}
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pool.wait();
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total_watch.stop();
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if (!json_path.empty())
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reportJSON(comparison_info_total, json_path);
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printNumberOfQueriesExecuted(queries_executed);
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report(comparison_info_total);
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}
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void thread(EntryPtrs & connection_entries)
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{
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Query query;
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/// Randomly choosing connection index
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pcg64 generator(randomSeed());
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std::uniform_int_distribution<size_t> distribution(0, connection_entries.size() - 1);
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try
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{
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/// In these threads we do not accept INT signal.
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sigset_t sig_set;
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if (sigemptyset(&sig_set)
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|| sigaddset(&sig_set, SIGINT)
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|| pthread_sigmask(SIG_BLOCK, &sig_set, nullptr))
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throwFromErrno("Cannot block signal.", ErrorCodes::CANNOT_BLOCK_SIGNAL);
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while (true)
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{
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bool extracted = false;
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while (!extracted)
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{
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extracted = queue.tryPop(query, 100);
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if (shutdown || (max_iterations && queries_executed == max_iterations))
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return;
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}
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execute(connection_entries, query, distribution(generator));
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++queries_executed;
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}
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}
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catch (...)
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{
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shutdown = true;
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std::cerr << "An error occurred while processing query:\n" << query << "\n";
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throw;
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}
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}
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void execute(EntryPtrs & connection_entries, Query & query, size_t connection_index)
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{
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Stopwatch watch;
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RemoteBlockInputStream stream(
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*(*connection_entries[connection_index]),
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query, {}, global_context, &settings, nullptr, Scalars(), Tables(), query_processing_stage);
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Progress progress;
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stream.setProgressCallback([&progress](const Progress & value) { progress.incrementPiecewiseAtomically(value); });
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stream.readPrefix();
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while (Block block = stream.read());
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stream.readSuffix();
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const BlockStreamProfileInfo & info = stream.getProfileInfo();
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double seconds = watch.elapsedSeconds();
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std::lock_guard lock(mutex);
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comparison_info_per_interval[connection_index]->add(seconds, progress.read_rows, progress.read_bytes, info.rows, info.bytes);
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comparison_info_total[connection_index]->add(seconds, progress.read_rows, progress.read_bytes, info.rows, info.bytes);
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t_test.add(connection_index, seconds);
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}
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void report(MultiStats & infos)
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{
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std::lock_guard lock(mutex);
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std::cerr << "\n";
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for (size_t i = 0; i < infos.size(); ++i)
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{
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const auto & info = infos[i];
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/// Avoid zeros, nans or exceptions
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if (0 == info->queries)
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return;
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double seconds = info->work_time / concurrency;
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std::cerr
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<< connections[i]->getDescription() << ", "
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<< "queries " << info->queries << ", "
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<< "QPS: " << (info->queries / seconds) << ", "
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<< "RPS: " << (info->read_rows / seconds) << ", "
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<< "MiB/s: " << (info->read_bytes / seconds / 1048576) << ", "
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<< "result RPS: " << (info->result_rows / seconds) << ", "
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<< "result MiB/s: " << (info->result_bytes / seconds / 1048576) << "."
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<< "\n";
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}
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std::cerr << "\n";
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auto print_percentile = [&](double percent)
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{
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std::cerr << percent << "%\t\t";
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for (const auto & info : infos)
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{
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std::cerr << info->sampler.quantileNearest(percent / 100.0) << " sec." << "\t";
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}
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std::cerr << "\n";
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};
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for (int percent = 0; percent <= 90; percent += 10)
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print_percentile(percent);
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print_percentile(95);
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print_percentile(99);
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print_percentile(99.9);
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print_percentile(99.99);
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std::cerr << "\n" << t_test.compareAndReport(confidence).second << "\n";
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if (!cumulative)
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{
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for (auto & info : infos)
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info->clear();
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}
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}
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void reportJSON(MultiStats & infos, const std::string & filename)
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{
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WriteBufferFromFile json_out(filename);
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std::lock_guard lock(mutex);
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auto print_key_value = [&](auto key, auto value, bool with_comma = true)
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{
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json_out << double_quote << key << ": " << value << (with_comma ? ",\n" : "\n");
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};
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auto print_percentile = [&json_out](Stats & info, auto percent, bool with_comma = true)
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{
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json_out << "\"" << percent << "\"" << ": " << info.sampler.quantileNearest(percent / 100.0) << (with_comma ? ",\n" : "\n");
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};
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json_out << "{\n";
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for (size_t i = 0; i < infos.size(); ++i)
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{
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const auto & info = infos[i];
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json_out << double_quote << connections[i]->getDescription() << ": {\n";
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json_out << double_quote << "statistics" << ": {\n";
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print_key_value("QPS", info->queries / info->work_time);
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print_key_value("RPS", info->read_rows / info->work_time);
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print_key_value("MiBPS", info->read_bytes / info->work_time);
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print_key_value("RPS_result", info->result_rows / info->work_time);
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print_key_value("MiBPS_result", info->result_bytes / info->work_time);
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print_key_value("num_queries", info->queries.load(), false);
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json_out << "},\n";
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json_out << double_quote << "query_time_percentiles" << ": {\n";
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for (int percent = 0; percent <= 90; percent += 10)
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print_percentile(*info, percent);
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print_percentile(*info, 95);
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print_percentile(*info, 99);
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print_percentile(*info, 99.9);
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print_percentile(*info, 99.99, false);
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json_out << "}\n";
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json_out << (i == infos.size() - 1 ? "}\n" : "},\n");
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}
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json_out << "}\n";
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}
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public:
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~Benchmark()
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{
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shutdown = true;
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}
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};
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}
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#ifndef __clang__
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#pragma GCC optimize("-fno-var-tracking-assignments")
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#endif
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#pragma GCC diagnostic ignored "-Wmissing-declarations"
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int mainEntryClickHouseBenchmark(int argc, char ** argv)
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{
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using namespace DB;
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bool print_stacktrace = true;
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try
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{
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using boost::program_options::value;
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boost::program_options::options_description desc = createOptionsDescription("Allowed options", getTerminalWidth());
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desc.add_options()
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("help", "produce help message")
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("concurrency,c", value<unsigned>()->default_value(1), "number of parallel queries")
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("delay,d", value<double>()->default_value(1), "delay between intermediate reports in seconds (set 0 to disable reports)")
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("stage", value<std::string>()->default_value("complete"), "request query processing up to specified stage: complete,fetch_columns,with_mergeable_state")
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("iterations,i", value<size_t>()->default_value(0), "amount of queries to be executed")
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("timelimit,t", value<double>()->default_value(0.), "stop launch of queries after specified time limit")
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("randomize,r", value<bool>()->default_value(false), "randomize order of execution")
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("json", value<std::string>()->default_value(""), "write final report to specified file in JSON format")
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("host,h", value<Strings>()->multitoken(), "")
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("port,p", value<Ports>()->multitoken(), "")
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("cumulative", "prints cumulative data instead of data per interval")
|
|
("secure,s", "Use TLS connection")
|
|
("user", value<std::string>()->default_value("default"), "")
|
|
("password", value<std::string>()->default_value(""), "")
|
|
("database", value<std::string>()->default_value("default"), "")
|
|
("stacktrace", "print stack traces of exceptions")
|
|
("confidence", value<size_t>()->default_value(5), "set the level of confidence for T-test [0=80%, 1=90%, 2=95%, 3=98%, 4=99%, 5=99.5%(default)")
|
|
;
|
|
|
|
Settings settings;
|
|
settings.addProgramOptions(desc);
|
|
|
|
boost::program_options::variables_map options;
|
|
boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), options);
|
|
boost::program_options::notify(options);
|
|
|
|
if (options.count("help"))
|
|
{
|
|
std::cout << "Usage: " << argv[0] << " [options] < queries.txt\n";
|
|
std::cout << desc << "\n";
|
|
return 1;
|
|
}
|
|
|
|
print_stacktrace = options.count("stacktrace");
|
|
|
|
UseSSL use_ssl;
|
|
Ports ports = options.count("port") ? options["port"].as<Ports>() : Ports({9000});
|
|
Strings hosts = options.count("host") ? options["host"].as<Strings>() : Strings({"localhost"});
|
|
|
|
Benchmark benchmark(
|
|
options["concurrency"].as<unsigned>(),
|
|
options["delay"].as<double>(),
|
|
std::move(hosts),
|
|
std::move(ports),
|
|
options.count("cumulative"),
|
|
options.count("secure"),
|
|
options["database"].as<std::string>(),
|
|
options["user"].as<std::string>(),
|
|
options["password"].as<std::string>(),
|
|
options["stage"].as<std::string>(),
|
|
options["randomize"].as<bool>(),
|
|
options["iterations"].as<size_t>(),
|
|
options["timelimit"].as<double>(),
|
|
options["json"].as<std::string>(),
|
|
options["confidence"].as<size_t>(),
|
|
settings);
|
|
return benchmark.run();
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cerr << getCurrentExceptionMessage(print_stacktrace, true) << std::endl;
|
|
return getCurrentExceptionCode();
|
|
}
|
|
}
|