Also: parallelize your writes. This is the biggest difference between SSDs and HDDs: internal parallelism. You’ll have a hard tine saturating I/O bandwidth even

Also: parallelize your writes. This is the biggest difference between SSDs and HDDs: internal parallelism. You’ll have a hard tine saturating I/O bandwidth even with huge sequential writes if you don’t introduce some parallelism. Fortunately, io_uring makes this easy from a single thread.