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68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
#include "Stats.h"
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#include <iostream>
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void report(std::shared_ptr<Stats> & info, size_t concurrency)
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{
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std::cerr << "\n";
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/// Avoid zeros, nans or exceptions
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if (0 == info->read_requests && 0 == info->write_requests)
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return;
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double read_seconds = info->read_work_time / concurrency;
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double write_seconds = info->write_work_time / concurrency;
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std::cerr << "read requests " << info->read_requests << ", write requests " << info->write_requests << ", ";
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if (info->errors)
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{
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std::cerr << "errors " << info->errors << ", ";
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}
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if (0 != info->read_requests)
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{
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std::cerr
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<< "Read RPS: " << (info->read_requests / read_seconds) << ", "
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<< "Read MiB/s: " << (info->requests_read_bytes / read_seconds / 1048576);
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if (0 != info->write_requests)
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std::cerr << ", ";
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}
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if (0 != info->write_requests)
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{
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std::cerr
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<< "Write RPS: " << (info->write_requests / write_seconds) << ", "
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<< "Write MiB/s: " << (info->requests_write_bytes / write_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, Stats::Sampler & sampler)
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{
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std::cerr << percent << "%\t\t";
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std::cerr << sampler.quantileNearest(percent / 100.0) << " sec.\t";
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std::cerr << "\n";
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};
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if (0 != info->read_requests)
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{
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std::cerr << "Read sampler:\n";
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for (int percent = 0; percent <= 90; percent += 10)
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print_percentile(percent, info->read_sampler);
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print_percentile(95, info->read_sampler);
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print_percentile(99, info->read_sampler);
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print_percentile(99.9, info->read_sampler);
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print_percentile(99.99, info->read_sampler);
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}
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if (0 != info->write_requests)
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{
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std::cerr << "Write sampler:\n";
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for (int percent = 0; percent <= 90; percent += 10)
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print_percentile(percent, info->write_sampler);
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print_percentile(95, info->write_sampler);
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print_percentile(99, info->write_sampler);
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print_percentile(99.9, info->write_sampler);
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print_percentile(99.99, info->write_sampler);
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}
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}
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