Hi Christoph, Here are the QD1 latency numbers (in usec)
Intel Optane: Sequential read | size | xfs-bounce | xfs-pi | +------+------------+-----------+ | 4k | 13.62 | 7.2 | | 64K | 99.66 | 34.16 | | 1M | 258.88 | 306.23 | +------+-------------------------+ Samsung PM1733 Sequential read | size | xfs-bounce | xfs-pi | +------+------------+-----------+ | 4k | 118.92 | 91.6 | | 64K | 176.15 | 134.55 | | 1M | 612.67 | 584.84 | +------+-------------------------+ For sequential writes, I did not observe any noticeable difference, which is expected. The Optane numbers at bs=1M look a bit odd (xfs-pi slightly worse than xfs-bounce), but they are reproducible across multiple runs. Overall, the series shows a clear improvement in read performance, which aligns well with the goal of making PI processing more efficient. Feel free to add: Tested-by: Anuj Gupta <[email protected]>
