Rewriting the GNU Coreutils in Rust

Rewriting the GNU Coreutils in Rust

Not just the kernel - all modern storage devices also reorder requests to minimise the overall time.

Every level in the stack below the application benefits from having deep queues; the only reason to not issue all the I/O you can at once is that you might not be able to handle the responses as fast as they come in. Otherwise, you might as well queue up as much I/O as you can keep track of; the kernel will do its re-ordering, and the device can reorder anything from 31 commands upwards to maximise throughput.