Issue

While dealing with large files, using ioutil.ReadAll() can lead to memory exhaustion due to reading the entire file into memory at once. This approach may not be suitable for files that exceed the available memory capacity, resulting in performance degradation or even program crashes.

start := time.Now()
b, err := ioutil.ReadAll(f)
fmt.Println("since: ", time.Since(start))

it took since: 16.911474529s time to load 5gb file into memory.