有的PM

中奖款好像IO更大些。

没有中奖
fio Disk Speed Tests (Mixed R/W 50/50) (Partition -):

Block Size | 4k (IOPS) | 64k (IOPS)
------ | --- ---- | ---- ----
Read | 100.19 MB/s (25.0k) | 521.86 MB/s (8.1k)
Write | 100.45 MB/s (25.1k) | 524.61 MB/s (8.1k)
Total | 200.64 MB/s (50.1k) | 1.04 GB/s (16.3k)

中奖

fio Disk Speed Tests (Mixed R/W 50/50) (Partition -):

Block Size | 4k (IOPS) | 64k (IOPS)
------ | --- ---- | ---- ----
Read | 246.74 MB/s (61.6k) | 2.64 GB/s (41.3k)
Write | 247.39 MB/s (61.8k) | 2.66 GB/s (41.5k)
Total | 494.14 MB/s (123.5k) | 5.30 GB/s (82.9k)