This post is a continuation of Measuring network service performance. When my computer doesn’t have an Internet connection, I find that there is not much I can do with it. Indeed, we mostly use our laptops and smartphones to access information stored or generated somewhere else. It’s even hard to imagine the utility of non-user facing apps without network communication. While the proportion of I/O
![Benchmarking low-level I/O: C, C++, Rust, Golang, Java, Python](https://cdn-ak-scissors.b.st-hatena.com/image/square/3c70d25c2bad6ad97ccf80de65d31ac1176e7bbd/height=288;version=1;width=512/https%3A%2F%2Fmiro.medium.com%2Fv2%2Fresize%3Afit%3A1200%2F1%2A-5c6s4V-gJo6C8ZBQFa9PQ.png)