On Tue, Dec 10, 2024 at 12:57:30PM +0000, John Garry wrote: > Currently the atomic write unit min and max is fixed at the FS blocksize > for xfs and ext4. > > This series expands support to allow multiple FS blocks to be written > atomically. Can you explain the workload you're interested in a bit more? I'm still very scared of expanding use of the large allocation sizes. IIRC you showed some numbers where increasing the FSB size to something larger did not look good in your benchmarks, but I'd like to understand why. Do you have a link to these numbers just to refresh everyones minds why that wasn't a good idea. Did that also include supporting atomic writes in the sector size <= write size <= FS block size range, which aren't currently supported, but very useful?
