On Thu, Oct 31, 2024 at 09:19:51AM +0100, Hans Holmberg wrote: > No. The meta data IO is just 0.1% of all writes, so that we use a > separate device for that in the benchmark really does not matter. > > Since we can achieve a WAF of ~1 for RocksDB on flash, why should we > be content with another 67% of unwanted device side writes on top of > that? > > It's of course impossible to compare your benchmark figures and mine > directly since we are using different devices, but hey, we definitely > have an opportunity here to make significant gains for FDP if we just > provide the right kernel interfaces. I'll write code to do a 1:1 single device comparism over the weekend and Hans will test it once he is back.
