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45b194e4d4
* Introduce Coefficient of variation aggregate I believe, it is much more useful / use to understand, because it is already normalized by the mean, so it is not affected by the duration of the benchmark, unlike the standard deviation. Example of real-world output: ``` raw.pixls.us-unique/GoPro/HERO6 Black$ ~/rawspeed/build-old/src/utilities/rsbench/rsbench GOPR9172.GPR --benchmark_repetitions=27 --benchmark_display_aggregates_only=true --benchmark_counters_tabular=true 2021-09-03T18:05:56+03:00 Running /home/lebedevri/rawspeed/build-old/src/utilities/rsbench/rsbench Run on (32 X 3596.16 MHz CPU s) CPU Caches: L1 Data 32 KiB (x16) L1 Instruction 32 KiB (x16) L2 Unified 512 KiB (x16) L3 Unified 32768 KiB (x2) Load Average: 7.00, 2.99, 1.85 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Benchmark Time CPU Iterations CPUTime,s CPUTime/WallTime Pixels Pixels/CPUTime Pixels/WallTime Raws/CPUTime Raws/WallTime WallTime,s ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ GOPR9172.GPR/threads:32/process_time/real_time_mean 11.1 ms 353 ms 27 0.353122 31.9473 12M 33.9879M 1085.84M 2.83232 90.4864 0.0110535 GOPR9172.GPR/threads:32/process_time/real_time_median 11.0 ms 352 ms 27 0.351696 31.9599 12M 34.1203M 1090.11M 2.84336 90.8425 0.0110081 GOPR9172.GPR/threads:32/process_time/real_time_stddev 0.159 ms 4.60 ms 27 4.59539m 0.0462064 0 426.371k 14.9631M 0.0355309 1.24692 158.944u GOPR9172.GPR/threads:32/process_time/real_time_cv 1.44 % 1.30 % 27 0.0130136 1.44633m 0 0.0125448 0.0137802 0.0125448 0.0137802 0.0143795 ``` Fixes https://github.com/google/benchmark/issues/1146 * Be consistent, it's CV, not 'rel std dev' |
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| .. | ||
| args_product_test.cc | ||
| AssemblyTests.cmake | ||
| basic_test.cc | ||
| benchmark_gtest.cc | ||
| benchmark_name_gtest.cc | ||
| benchmark_random_interleaving_gtest.cc | ||
| benchmark_test.cc | ||
| BUILD | ||
| clobber_memory_assembly_test.cc | ||
| CMakeLists.txt | ||
| commandlineflags_gtest.cc | ||
| complexity_test.cc | ||
| cxx03_test.cc | ||
| diagnostics_test.cc | ||
| display_aggregates_only_test.cc | ||
| donotoptimize_assembly_test.cc | ||
| donotoptimize_test.cc | ||
| filter_test.cc | ||
| fixture_test.cc | ||
| internal_threading_test.cc | ||
| link_main_test.cc | ||
| map_test.cc | ||
| memory_manager_test.cc | ||
| multiple_ranges_test.cc | ||
| options_test.cc | ||
| output_test_helper.cc | ||
| output_test.h | ||
| perf_counters_gtest.cc | ||
| perf_counters_test.cc | ||
| register_benchmark_test.cc | ||
| repetitions_test.cc | ||
| report_aggregates_only_test.cc | ||
| reporter_output_test.cc | ||
| skip_with_error_test.cc | ||
| state_assembly_test.cc | ||
| statistics_gtest.cc | ||
| string_util_gtest.cc | ||
| templated_fixture_test.cc | ||
| user_counters_tabular_test.cc | ||
| user_counters_test.cc | ||
| user_counters_thousands_test.cc | ||