On Mon, Nov 27, 2023 at 09:41:28PM -0800, Christoph Hellwig wrote: > On Mon, Nov 27, 2023 at 02:34:51PM -0800, Darrick J. Wong wrote: > > That had a noticeable effect on performance straight after mounting > > because touching /any/ btree would result in splits. IIRC Dave and I > > decided that repair should generate btree blocks that were 75% full > > unless space was tight. We defined tight as ~10% free to avoid repair > > failures and settled on 3/32 to avoid div64. > > > > IOWs, we mostly pulled it out of thin air. ;) > > Maybe throw a little comment about this in. Yeah, I'll paste the sordid history into the commit message when I change the code to use div_u64. --D
