On 10/2/23 18:40, Martin K. Petersen wrote:
Niklas,I don't know which user facing API Martin's I/O hinting series is intending to use.I'm just using ioprio.
Hi Martin,Do you plan to use existing bits from the ioprio bitmask or new bits? Bits 0-2 are used for the priority level. Bits 3-5 are used for CDL. Bits 13-15 are used for the I/O priority. The SCSI and NVMe standard define 64 different data lifetimes (six bits). So there are 16 - 3 - 3 - 6 = 4 remaining bits.
Thanks, Bart.
