You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: bench_acquire.rs
    path of file: ./repos/once_cell/examples
    
    the code of the file until where you have to start completion: //! Benchmark the overhead that the synchronization of `OnceCell::get` causes.
//! We do some other operations that write to memory to get an imprecise but somewhat realistic
//! measurement.

use once_cell::sync::OnceCell;
use std::sync::atomic::{AtomicUsize, Ordering};

const N_THREADS: us
    
fn thread_main(i: usize) {
    // The operations we do here don't really matter, as long as we do multiple writes, and
    // everything is messy enough to prevent the compiler from optimizing the loop away.
    let mut data = [i; 128];
    let mut accum = 0usize;
    for _ in 0..N_ROUNDS {
        let _value = CELL.get_or_init(|| i + 1);
        let k = OTHER.fetch_add(data[accum & 0x7F] as usize, Ordering::Relaxed);
        for j in data.iter_mut() {
            *j = (*j).wrapping_add(accum);
            accum = accum.wrapping_add(k);
        }
    }
}