This article recently featured on HN may be of interest to answer your question: https://itnext.io/modern-storage-is-plenty-fast-it-is-the-apis-that-are-bad-6a

This article recently featured on HN may be of interest to answer your question: https://itnext.io/modern-storage-is-plenty-fast-it-is-the-apis-that-are-bad-6a68319fbc1a https://itnext.io/modern-storage-is-plenty-fast-it-is-the-ap... io_uring allows for better utilization of fast storage.