Re: [PATCH 00/29] RFC: iov_iter: Switch to using an ops table
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2020-11-21 18:23:35
Also in:
linux-fsdevel, lkml
On Sat, Nov 21, 2020 at 6:13 AM David Howells [off-list ref] 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