StringCmp-Benchmark

Time comparation of several ways to compare strings

How to test

git clone https://github.com/Samega7Cattac/StringCmp-Benchmark.git
cd StringCmp-Benchmark
make
./benchmark

Result Examples (default 100000000 iterations)

If the strings are equal: ./benchmark "This is a test String" "This is a test String"

direct == comp: true in 40.808111 nanosec
string.compare: true in 34.426106 nanosec
strcmp: true in 34.294204 nanosec
memcmp: true in 31.675042 nanosec
length_and_memory_argcmp: true in 31.885689 nanosec

Strings are diff: ./benchmark "This is a test String1" "This is a test String2"

direct == comp: false in 43.381544 nanosec
string.compare: false in 37.089940 nanosec
strcmp: false in 34.211088 nanosec
memcmp: false in 35.235334 nanosec
length_and_memory_argcmp: false in 35.579679 nanosec

Strings are diff and with diff lengths: ./benchmark "This is a test String1" "This is a test String22"

direct == comp: false in 30.119650 nanosec
string.compare: false in 36.627149 nanosec
strcmp: false in 34.298820 nanosec
memcmp: false in 35.436222 nanosec
length_and_memory_argcmp: false in 27.794495 nanosec

memcmp and lenght_and_memory_argcmp have almost the same timings, but lenght_and_memory_argcmp is faster when the lengths are diff.