What are some examples of C++ benchmarking techniques?

What are some examples of C++ benchmarking techniques?

C++ benchmarking techniques include using libraries like Google Benchmark, measuring execution time with <chrono>, and profiling with tools like Valgrind.

Can you show me a simple code example using Google Benchmark?

Sure! Here's a simple example:

#include <benchmark/benchmark.h>

static void BM_SomeFunction(benchmark::State& state) {
    for (auto _ : state) {
        // Code to benchmark
    }
}
BENCHMARK(BM_SomeFunction);

BENCHMARK_MAIN();

How do I install Google Benchmark?

You can install Google Benchmark using CMake. Clone the repository, then run:

mkdir build && cd build
cmake ..
make
sudo make install

What are some common pitfalls in benchmarking?

Common pitfalls include not running benchmarks in a release build, ignoring warm-up iterations, and not accounting for system load.