Benchmarking
====================
[](https://travis-ci.org/magiclen/benchmarking)
[](https://ci.appveyor.com/project/magiclen/benchmarking/branch/master)
This crate can be used to execute something and measure the execution time in nano seconds. It does not output anything to the screen and the filesystem.
## Examples
```rust
extern crate benchmarking;
use benchmarking::Benchmark;
fn main() {
const VEC_LENGTH: usize = 100;
let mut benchmark = Benchmark::default();
benchmark.warm_up();
let bench_result = benchmark.bench_function(|measurer| {
let mut vec: Vec<usize> = Vec::with_capacity(VEC_LENGTH);
measurer.measure(|| {
for i in 0..VEC_LENGTH {
vec.push(i);
}
});
/*
// Start the measurement
for i in 0..VEC_LENGTH {
vec.push(i);
}
// End the measurement
*/
}).unwrap();
println!("Filling 0 to 99 into a vec takes {} nano seconds!", bench_result);
}
```
```rust
extern crate benchmarking;
use benchmarking::Benchmark;
fn main() {
const VEC_LENGTH: usize = 100;
let mut benchmark = Benchmark::default();
benchmark.warm_up();
let bench_result = benchmark.bench_function(|measurer| {
let mut vec: Vec<usize> = Vec::with_capacity(VEC_LENGTH);
measurer.measure_for_loop(0..VEC_LENGTH, |loop_seq| {
vec.push(loop_seq);
});
/*
for i in 0...VEC_LENGTH {
// Start the measurement
vec.push(i);
// End the measurement
}
*/
}).unwrap();
println!("Pushing a number into a vec takes {} nano seconds!", bench_result);
}
```
```rust
extern crate benchmarking;
use benchmarking::Benchmark;
fn main() {
const VEC_LENGTH: usize = 100;
let mut benchmark = Benchmark::default();
benchmark.warm_up();
let bench_result = benchmark.bench_function(|measurer| {
let mut vec: Vec<usize> = Vec::with_capacity(VEC_LENGTH);
measurer.measure_while_loop(|loop_seq| {
loop_seq < VEC_LENGTH
}, |loop_seq| {
vec.push(loop_seq);
});
/*
let mut i = 0;
while loop_seq < VEC_LENGTH {
// Start the measurement
vec.push(i);
// End the measurement
i += 1;
}
*/
}).unwrap();
println!("Pushing a number into a vec takes {} nano seconds!", bench_result);
}
```
The `warm_up` and `warm_up_with_duration` methods of a `Benchmark` instance runs on one thread. To warm up all CPUs, you can use the `warm_up_multi_thread` and `warm_up_multi_thread_with_duration` methods instead.
## Crates.io
https://crates.io/crates/benchmarking
## Documentation
https://docs.rs/benchmarking
## License
[MIT](LICENSE)