<JamesMunns[m]> "let mut buf = [0u8; 16]; // we..." <- > <@jamesmunns:beeper.com> ```rust
> let mut buf = [0u8; 16]; // we want to fill this
> let mut window = buf.as_mut_slice();
> 
> while !window.is_empty() {
>     match input.read(window) {
>         Ok(n) => {
>             let (_old, now) = window.split_at_mut(n);
>             window = now;
>         }
>         Err(e) => ...,
>     }
> }
> ```

any idea on the performance of `take`? i guess its like