g++ -g perf.cc -std=c++17 -isystem benchmark/include -Lbenchmark/build/src -lbenchmark -lpthread -o mybenchmark
Install needed tools apt-get install build-essential cmake git gdb
Clone markovuksanovic/benchmarks https://github.com/mvuksano/benchmarks.git
Clone google/benchmark as subfolder https://github.com/google/benchmark.git
Clone x86-simd-sort as subfolder: git clone https://github.com/intel/x86-simd-sort.git
Build: g++ -g perf.cc -std=c++17 -isystem benchmark/include -Lbenchmark/build/src -lbenchmark -lpthread -o mybenchmark
Run: ./mybenchmark --benchmark_filter=".Sum1024_x.$" --benchmark_min_time=3s --benchmark_time_unit=ms
Build targets: cmake --build build
Run sort benchmark:
./build/sort
Example run:
markovuksanovic@instance-2:~/devel/benchmarks$ ./mybenchmark --benchmark_time_unit=us
2023-04-14T06:51:13+00:00
Running ./mybenchmark
Run on (8 X 2700 MHz CPU s)
CPU Caches:
L1 Data 48 KiB (x4)
L1 Instruction 32 KiB (x4)
L2 Unified 2048 KiB (x4)
L3 Unified 107520 KiB (x1)
Load Average: 0.22, 0.05, 0.02
---------------------------------------------------------------
Benchmark Time CPU Iterations
---------------------------------------------------------------
AvxSum256 4.65 us 4.65 us 150657
AvxSum1024 18.5 us 18.5 us 37761
AvxSum1024_x_1024 18931 us 18931 us 37
Avx512Sum256 0.237 us 0.237 us 2947561
Avx512Sum1024 0.285 us 0.285 us 2455984
Avx512Sum1024_x_1024 128 us 128 us 5477
Avx512Sum4096 0.476 us 0.476 us 1473410
Sum256 0.648 us 0.648 us 1078806
Sum1024 2.70 us 2.70 us 259042
Sum4096 10.9 us 10.9 us 64052
Sum1024_x_1024 2822 us 2822 us 248
Sum8192 21.9 us 21.9 us 31976
This program is used to generate a sequence of random numbers that can se used for benchmarking. Idea is to generate a sequence of numbers, store it into a file and use it to benchmark different scenarios.
Numnbers are stored in binary format. You tool like hexdump to view exact content. E.g.:
hexdump -e '1/8 "%016x" "\n"' nums
Build:
g++ -march=native generate_random_numbers.cc
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