This repository contains a set of C++ benchmarks. The benchmarks are included in the benchmarks/ directory. The next sections include the results of running each benchmark on a 2020 Apple M1 processor. For more information about each benchmark, refer to the comment in the C++ source code.
$ bazel run benchmark:branching -c opt
Run on (8 X 2400 MHz CPU s)
CPU Caches:
L1 Data 64 KiB (x8)
L1 Instruction 128 KiB (x8)
L2 Unified 4096 KiB (x8)
Load Average: 1.41, 1.32, 1.47
------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations UserCounters...
------------------------------------------------------------------------------------------
BM_FilteringWithBranching/0 82127 ns 82127 ns 8411 bytes_per_second=11.8909G/s 1024 KiB
BM_FilteringWithBranching/10 242700 ns 242700 ns 2894 bytes_per_second=4.02375G/s 1024 KiB
BM_FilteringWithBranching/20 388848 ns 388849 ns 1790 bytes_per_second=2.51142G/s 1024 KiB
BM_FilteringWithBranching/30 545909 ns 545905 ns 1276 bytes_per_second=1.78889G/s 1024 KiB
BM_FilteringWithBranching/40 726367 ns 726307 ns 944 bytes_per_second=1.34456G/s 1024 KiB
BM_FilteringWithBranching/50 835214 ns 835205 ns 838 bytes_per_second=1.16925G/s 1024 KiB
BM_FilteringWithBranching/60 761988 ns 761953 ns 941 bytes_per_second=1.28166G/s 1024 KiB
BM_FilteringWithBranching/70 577011 ns 576998 ns 1150 bytes_per_second=1.69249G/s 1024 KiB
BM_FilteringWithBranching/80 391869 ns 391837 ns 1766 bytes_per_second=2.49226G/s 1024 KiB
BM_FilteringWithBranching/90 242491 ns 242487 ns 2848 bytes_per_second=4.02727G/s 1024 KiB
BM_FilteringWithBranching/100 164824 ns 164808 ns 4265 bytes_per_second=5.92547G/s 1024 KiB
BM_FilteringWithNoBranching/0 120439 ns 120430 ns 5836 bytes_per_second=8.10898G/s 1024 KiB
BM_FilteringWithNoBranching/10 118230 ns 118219 ns 5851 bytes_per_second=8.26064G/s 1024 KiB
BM_FilteringWithNoBranching/20 118364 ns 118355 ns 5821 bytes_per_second=8.25111G/s 1024 KiB
BM_FilteringWithNoBranching/30 118973 ns 118968 ns 5846 bytes_per_second=8.2086G/s 1024 KiB
BM_FilteringWithNoBranching/40 118820 ns 118821 ns 5874 bytes_per_second=8.21879G/s 1024 KiB
BM_FilteringWithNoBranching/50 119887 ns 119887 ns 5792 bytes_per_second=8.14569G/s 1024 KiB
BM_FilteringWithNoBranching/60 120065 ns 120060 ns 5830 bytes_per_second=8.13397G/s 1024 KiB
BM_FilteringWithNoBranching/70 122337 ns 122309 ns 5826 bytes_per_second=7.98436G/s 1024 KiB
BM_FilteringWithNoBranching/80 122065 ns 122060 ns 5737 bytes_per_second=8.00067G/s 1024 KiB
BM_FilteringWithNoBranching/90 121988 ns 121986 ns 5730 bytes_per_second=8.00552G/s 1024 KiB
BM_FilteringWithNoBranching/100 124575 ns 124567 ns 5624 bytes_per_second=7.83967G/s 1024 KiB$ bazel run benchmark:caching -c opt
Run on (8 X 2400 MHz CPU s)
CPU Caches:
L1 Data 64 KiB (x8)
L1 Instruction 128 KiB (x8)
L2 Unified 4096 KiB (x8)
Load Average: 1.80, 1.46, 1.48
---------------------------------------------------------------------------------------
Benchmark Time CPU Iterations UserCounters...
---------------------------------------------------------------------------------------
BM_RandomAccess/1024 90.1 ns 90.1 ns 7773200 bytes_per_second=10.5827G/s 1 KiB
BM_RandomAccess/2048 179 ns 178 ns 4049426 bytes_per_second=10.7365G/s 2 KiB
BM_RandomAccess/4096 341 ns 340 ns 2047933 bytes_per_second=11.2207G/s 4 KiB
BM_RandomAccess/8192 674 ns 672 ns 1034493 bytes_per_second=11.3488G/s 8 KiB
BM_RandomAccess/16384 1354 ns 1353 ns 520485 bytes_per_second=11.276G/s 16 KiB
BM_RandomAccess/32768 2785 ns 2783 ns 251689 bytes_per_second=10.9652G/s 32 KiB
BM_RandomAccess/65536 5584 ns 5583 ns 122796 bytes_per_second=10.9318G/s 64 KiB
BM_RandomAccess/131072 11648 ns 11646 ns 59483 bytes_per_second=10.4816G/s 128 KiB
BM_RandomAccess/262144 30686 ns 30633 ns 22840 bytes_per_second=7.96984G/s 256 KiB
BM_RandomAccess/524288 73494 ns 73488 ns 9472 bytes_per_second=6.64432G/s 512 KiB
BM_RandomAccess/1048576 165636 ns 165623 ns 4261 bytes_per_second=5.8963G/s 1024 KiB
BM_RandomAccess/2097152 378869 ns 378869 ns 1839 bytes_per_second=5.15514G/s 2048 KiB
BM_RandomAccess/4194304 831805 ns 826804 ns 872 bytes_per_second=4.72452G/s 4096 KiB
BM_RandomAccess/8388608 1838844 ns 1838545 ns 365 bytes_per_second=4.24928G/s 8192 KiB
BM_RandomAccess/16777216 6839258 ns 6839257 ns 101 bytes_per_second=2.2846G/s 16384 KiB
BM_RandomAccess/33554432 24591940 ns 24590960 ns 25 bytes_per_second=1.27079G/s 32768 KiB
BM_RandomAccess/67108864 60774657 ns 60772556 ns 9 bytes_per_second=1053.11M/s 65536 KiB
BM_SequentialAccess/1024 89.7 ns 89.7 ns 7825076 bytes_per_second=10.6359G/s 1 KiB
BM_SequentialAccess/2048 173 ns 172 ns 4057924 bytes_per_second=11.0818G/s 2 KiB
BM_SequentialAccess/4096 333 ns 333 ns 2097322 bytes_per_second=11.4716G/s 4 KiB
BM_SequentialAccess/8192 656 ns 656 ns 1068719 bytes_per_second=11.6347G/s 8 KiB
BM_SequentialAccess/16384 1316 ns 1315 ns 537795 bytes_per_second=11.6024G/s 16 KiB
BM_SequentialAccess/32768 2751 ns 2668 ns 258723 bytes_per_second=11.4393G/s 32 KiB
BM_SequentialAccess/65536 5494 ns 5490 ns 127028 bytes_per_second=11.1174G/s 64 KiB
BM_SequentialAccess/131072 11142 ns 11140 ns 62138 bytes_per_second=10.9581G/s 128 KiB
BM_SequentialAccess/262144 23802 ns 23071 ns 31322 bytes_per_second=10.5823G/s 256 KiB
BM_SequentialAccess/524288 46401 ns 46393 ns 15047 bytes_per_second=10.5249G/s 512 KiB
BM_SequentialAccess/1048576 93511 ns 93511 ns 7540 bytes_per_second=10.4433G/s 1024 KiB
BM_SequentialAccess/2097152 188496 ns 188496 ns 3723 bytes_per_second=10.3616G/s 2048 KiB
BM_SequentialAccess/4194304 391242 ns 391243 ns 1851 bytes_per_second=9.98422G/s 4096 KiB
BM_SequentialAccess/8388608 782269 ns 782270 ns 900 bytes_per_second=9.98696G/s 8192 KiB
BM_SequentialAccess/16777216 1532112 ns 1531748 ns 457 bytes_per_second=10.2008G/s 16384 KiB
BM_SequentialAccess/33554432 3087197 ns 3081787 ns 235 bytes_per_second=10.1402G/s 32768 KiB
BM_SequentialAccess/67108864 6172644 ns 6162684 ns 114 bytes_per_second=10.1417G/s 65536 KiB$ bazel run benchmark:mutual_exclusion -c opt
Run on (8 X 2400 MHz CPU s)
CPU Caches:
L1 Data 64 KiB (x8)
L1 Instruction 128 KiB (x8)
L2 Unified 4096 KiB (x8)
Load Average: 1.41, 1.43, 1.46
--------------------------------------------------------------------------------------------------
Benchmark Time CPU Iterations UserCounters...
--------------------------------------------------------------------------------------------------
BM_InitVectorWithStdMutex/1024 4429 ns 4420 ns 162333 bytes_per_second=220.939M/s 1 KiB
BM_InitVectorWithStdMutex/4096 14576 ns 14575 ns 47331 bytes_per_second=268.013M/s 4 KiB
BM_InitVectorWithStdMutex/32768 111337 ns 111239 ns 6415 bytes_per_second=280.928M/s 32 KiB
BM_InitVectorWithStdMutex/262144 880231 ns 878716 ns 798 bytes_per_second=284.506M/s 256 KiB
BM_InitVectorWithStdMutex/2097152 7000718 ns 6995485 ns 101 bytes_per_second=285.899M/s 2048 KiB
BM_InitVectorWithStdMutex/16777216 56104503 ns 56035417 ns 12 bytes_per_second=285.534M/s 16384 KiB
BM_InitVectorWithStdMutex/67108864 223320361 ns 223274667 ns 3 bytes_per_second=286.642M/s 65536 KiB
BM_InitVectorWithAbslMutex/1024 4252 ns 4253 ns 161592 bytes_per_second=229.618M/s 1 KiB
BM_InitVectorWithAbslMutex/4096 14507 ns 14500 ns 48635 bytes_per_second=269.392M/s 4 KiB
BM_InitVectorWithAbslMutex/32768 109362 ns 109363 ns 6349 bytes_per_second=285.746M/s 32 KiB
BM_InitVectorWithAbslMutex/262144 880448 ns 880388 ns 802 bytes_per_second=283.966M/s 256 KiB
BM_InitVectorWithAbslMutex/2097152 7160598 ns 7118545 ns 99 bytes_per_second=280.956M/s 2048 KiB
BM_InitVectorWithAbslMutex/16777216 55966024 ns 55953083 ns 12 bytes_per_second=285.954M/s 16384 KiB
BM_InitVectorWithAbslMutex/67108864 224049624 ns 223853333 ns 3 bytes_per_second=285.901M/s 65536 KiB
BM_InitVectorWithCompareAndSet/1024 1447 ns 1447 ns 484657 bytes_per_second=674.817M/s 1 KiB
BM_InitVectorWithCompareAndSet/4096 3134 ns 3142 ns 223521 bytes_per_second=1.21393G/s 4 KiB
BM_InitVectorWithCompareAndSet/32768 18946 ns 18949 ns 36964 bytes_per_second=1.61049G/s 32 KiB
BM_InitVectorWithCompareAndSet/262144 145194 ns 145178 ns 4822 bytes_per_second=1.68167G/s 256 KiB
BM_InitVectorWithCompareAndSet/2097152 1175630 ns 1174617 ns 595 bytes_per_second=1.66278G/s 2048 KiB
BM_InitVectorWithCompareAndSet/16777216 9409445 ns 9402520 ns 75 bytes_per_second=1.66179G/s 16384 KiB
BM_InitVectorWithCompareAndSet/67108864 37177697 ns 37163632 ns 19 bytes_per_second=1.68175G/s 65536 KiB