On Thu, Apr 20, 2023 at 02:10:02PM -0600, Logan Gunthorpe wrote: > > I am hoping to make raid5_make_request() a little faster for non-rotational > > devices. We may not easily observe a difference in performance, but things > > add up. Does this make sense? > > I guess. But without a performance test that shows that it makes an > improvement, I'm hesitant about that. It could also be that it helps a > tiny bit for non-rotational disks, but we just don't know. > > Unfortunately, I don't have the time right now to do these performance > tests. FYI, SSDs in general do prefer sequential write streams. For most you won't see a different in write performance itself, but it will help with reducing GC overhead later on.
