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Apply UseManualTime to BM_bytes_per_second and BM_items_per_second #2320

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Merged
dmah42 merged 1 commit into from
Oct 6, 2026
Merged

Apply UseManualTime to BM_bytes_per_second and BM_items_per_second #2320

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102 changes: 58 additions & 44 deletions test/reporter_output_test.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -97,67 +97,81 @@ ADD_CASES(TC_CSVOut, {{"^\"BM_basic\",%csv_report$"}});
// ------------------------ Testing Bytes per Second Output ---------------- //
// ========================================================================= //

constexpr double kIterationTime = 150e-9;

void BM_bytes_per_second(benchmark::State& state) {
for (auto _ : state) {
// This test requires a non-zero CPU time to avoid divide-by-zero
auto iterations = static_cast<double>(state.iterations()) *
static_cast<double>(state.iterations());
benchmark::DoNotOptimize(iterations);
state.SetIterationTime(kIterationTime);
}
state.SetBytesProcessed(1);
}
BENCHMARK(BM_bytes_per_second);
BENCHMARK(BM_bytes_per_second)->UseManualTime();

ADD_CASES(TC_ConsoleOut, {{"^BM_bytes_per_second %console_report "
ADD_CASES(TC_ConsoleOut, {{"^BM_bytes_per_second/manual_time %console_report "
"bytes_per_second=%float[kM]{0,1}/s$"}});
ADD_CASES(TC_JSONOut, {{"\"name\": \"BM_bytes_per_second\",$"},
{"\"family_index\": 1,$", MR_Next},
{"\"per_family_instance_index\": 0,$", MR_Next},
{"\"run_name\": \"BM_bytes_per_second\",$", MR_Next},
{"\"run_type\": \"iteration\",$", MR_Next},
{"\"repetitions\": 1,$", MR_Next},
{"\"repetition_index\": 0,$", MR_Next},
{"\"threads\": 1,$", MR_Next},
{"\"iterations\": %int,$", MR_Next},
{"\"real_time\": %float,$", MR_Next},
{"\"cpu_time\": %float,$", MR_Next},
{"\"time_unit\": \"ns\",$", MR_Next},
{"\"bytes_per_second\": %float$", MR_Next},
{"}", MR_Next}});
ADD_CASES(TC_CSVOut, {{"^\"BM_bytes_per_second\",%csv_bytes_report$"}});
ADD_CASES(TC_JSONOut,
{{"\"name\": \"BM_bytes_per_second/manual_time\",$"},
{"\"family_index\": 1,$", MR_Next},
{"\"per_family_instance_index\": 0,$", MR_Next},
{"\"run_name\": \"BM_bytes_per_second/manual_time\",$", MR_Next},
{"\"run_type\": \"iteration\",$", MR_Next},
{"\"repetitions\": 1,$", MR_Next},
{"\"repetition_index\": 0,$", MR_Next},
{"\"threads\": 1,$", MR_Next},
{"\"iterations\": %int,$", MR_Next},
{"\"real_time\": %float,$", MR_Next},
{"\"cpu_time\": %float,$", MR_Next},
{"\"time_unit\": \"ns\",$", MR_Next},
{"\"bytes_per_second\": %float$", MR_Next},
{"}", MR_Next}});
ADD_CASES(TC_CSVOut,
{{"^\"BM_bytes_per_second/manual_time\",%csv_bytes_report$"}});

void BM_bytes_per_second_results(Results const& e) {
CHECK_FLOAT_RESULT_VALUE(e, "bytes_per_second", EQ,
1.0 / (e.NumIterations() * kIterationTime), 0.001);
}
CHECK_BENCHMARK_RESULTS("BM_bytes_per_second/manual_time",
&BM_bytes_per_second_results);

// ========================================================================= //
// ------------------------ Testing Items per Second Output ---------------- //
// ========================================================================= //

void BM_items_per_second(benchmark::State& state) {
for (auto _ : state) {
// This test requires a non-zero CPU time to avoid divide-by-zero
auto iterations = static_cast<double>(state.iterations()) *
static_cast<double>(state.iterations());
benchmark::DoNotOptimize(iterations);
state.SetIterationTime(kIterationTime);
}
state.SetItemsProcessed(1);
}
BENCHMARK(BM_items_per_second);
BENCHMARK(BM_items_per_second)->UseManualTime();

ADD_CASES(TC_ConsoleOut, {{"^BM_items_per_second %console_report "
ADD_CASES(TC_ConsoleOut, {{"^BM_items_per_second/manual_time %console_report "
"items_per_second=%float[kM]{0,1}/s$"}});
ADD_CASES(TC_JSONOut, {{"\"name\": \"BM_items_per_second\",$"},
{"\"family_index\": 2,$", MR_Next},
{"\"per_family_instance_index\": 0,$", MR_Next},
{"\"run_name\": \"BM_items_per_second\",$", MR_Next},
{"\"run_type\": \"iteration\",$", MR_Next},
{"\"repetitions\": 1,$", MR_Next},
{"\"repetition_index\": 0,$", MR_Next},
{"\"threads\": 1,$", MR_Next},
{"\"iterations\": %int,$", MR_Next},
{"\"real_time\": %float,$", MR_Next},
{"\"cpu_time\": %float,$", MR_Next},
{"\"time_unit\": \"ns\",$", MR_Next},
{"\"items_per_second\": %float$", MR_Next},
{"}", MR_Next}});
ADD_CASES(TC_CSVOut, {{"^\"BM_items_per_second\",%csv_items_report$"}});
ADD_CASES(TC_JSONOut,
{{"\"name\": \"BM_items_per_second/manual_time\",$"},
{"\"family_index\": 2,$", MR_Next},
{"\"per_family_instance_index\": 0,$", MR_Next},
{"\"run_name\": \"BM_items_per_second/manual_time\",$", MR_Next},
{"\"run_type\": \"iteration\",$", MR_Next},
{"\"repetitions\": 1,$", MR_Next},
{"\"repetition_index\": 0,$", MR_Next},
{"\"threads\": 1,$", MR_Next},
{"\"iterations\": %int,$", MR_Next},
{"\"real_time\": %float,$", MR_Next},
{"\"cpu_time\": %float,$", MR_Next},
{"\"time_unit\": \"ns\",$", MR_Next},
{"\"items_per_second\": %float$", MR_Next},
{"}", MR_Next}});
ADD_CASES(TC_CSVOut,
{{"^\"BM_items_per_second/manual_time\",%csv_items_report$"}});

void BM_items_per_second_results(Results const& e) {
CHECK_FLOAT_RESULT_VALUE(e, "items_per_second", EQ,
1.0 / (e.NumIterations() * kIterationTime), 0.001);
}
CHECK_BENCHMARK_RESULTS("BM_items_per_second/manual_time",
&BM_items_per_second_results);

// ========================================================================= //
// ------------------------ Testing Label Output --------------------------- //
Expand Down Expand Up @@ -830,7 +844,7 @@ const auto UserStatistics = [](const std::vector<double>& v) {
};
void BM_UserStats(benchmark::State& state) {
for (auto _ : state) {
state.SetIterationTime(150 / 10e8);
state.SetIterationTime(kIterationTime);
}
}
// clang-format off
Expand Down Expand Up @@ -961,7 +975,7 @@ const auto UserPercentStatistics = [](const std::vector<double>&) {
};
void BM_UserPercentStats(benchmark::State& state) {
for (auto _ : state) {
state.SetIterationTime(150 / 10e8);
state.SetIterationTime(kIterationTime);
}
}
// clang-format off
Expand Down
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