Криптография для говноедов: l29ah-x201 ~ ∞ hdparm -Tt --direct /dev/nvme0n1 /dev/nvme0n1: Timing O_DIRECT cached reads: 4036 MB in 2.00 seconds = 2019.58 MB/sec HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device Timing O_DIRECT disk reads: 7788 MB in 3.00 seconds = 2595.38 MB/sec l29ah-x201 ~ ∞ hdparm -Tt --direct /dev/dm-0 /dev/dm-0: Timing O_DIRECT cached reads: 2858 MB in 2.00 seconds = 1429.28 MB/sec HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device Timing O_DIRECT disk reads: 5442 MB in 3.00 seconds = 1813.44 MB/sec