On Sat, Nov 21, 2020 at 6:13 AM David Howells <dhowe...@redhat.com> wrote: > > Can someone recommend a good way to benchmark this properly? The problem > is that the difference this makes relative to the amount of time taken to > actually do I/O is tiny.
Maybe try /dev/zero -> /dev/null to try a load where the IO itself is
cheap. Or vmsplice to /dev/null?
Linus
