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Fixes : broken RMS values when time unit is set. ()

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jpmag 2017-04-04 20:31:28 +01:00 committed by Dominic Hamon
parent 2fa6dfff32
commit 9a5072d1bf
1 changed files with 8 additions and 0 deletions

8
src/complexity.cc
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@ -295,6 +295,11 @@ std::vector<BenchmarkReporter::Run> ComputeBigO(
big_o.report_big_o = true;
big_o.complexity = result_cpu.complexity;
// All the time results are reported after being multiplied by the
// time unit multiplier. But since RMS is a relative quantity it
// should not be multiplied at all. So, here, we _divide_ it by the
// multiplier so that when it is multiplied later the result is the
// correct one.
double multiplier = GetTimeUnitMultiplier(reports[0].time_unit);
// Only add label to mean/stddev if it is same for all runs
@ -307,6 +312,9 @@ std::vector<BenchmarkReporter::Run> ComputeBigO(
rms.cpu_accumulated_time = result_cpu.rms / multiplier;
rms.report_rms = true;
rms.complexity = result_cpu.complexity;
// don't forget to keep the time unit, or we won't be able to
// recover the correct value.
rms.time_unit = reports[0].time_unit;
results.push_back(big_o);
results.push_back(rms);