On Thu, Nov 21, 2024 at 09:19:24AM -0800, Darrick J. Wong wrote: > Oh, that's with your BLKDISCARD -> BLKZEROOUT change applied, isn't it? > On my system, 100 loops takes 96 seconds with discard and 639 seconds > with zeroout. The discard path is guaranteed to fail after the first iteration, but that at least happens very quickly..