Messages in this thread | | | Date | Fri, 20 May 2022 16:18:06 -0600 | Subject | Re: [PATCH] fs: prefer read_iter over read and write_iter over write | From | Jens Axboe <> |
| |
On 5/20/22 4:08 PM, David Laight wrote: >> https://lore.kernel.org/lkml/Yoey+FOYO69lS5qP@zx2c4.com/ >> >> The hope is that it eventually becomes faster... :-\ > > I suspect all the xxx_iter functions need optimising for > the common case of a single buffer in userspace. > > That also includes the code to read the iov[] from usespace. > At the moment I think the 32bit compat code is actually > faster than the native amd64 version! > I've written some patches to speed that up. > But the bigger improvements all hit massive changes > to the ioring code.
Do you have a link to those patches? I can certainly help with the io_uring side of things, and I have a genuine interest in improving the core and getting the iter side up to snuff.
-- Jens Axboe
| |