1 # Do some important numbers on SSD drives, to gauge what kind of 2 # performance you might get out of them. 3 # 4 # Sequential read and write speeds are tested, these are expected to be 5 # high. Random reads should also be fast, random writes are where crap 6 # drives are usually separated from the good drives. 7 # 8 # This uses a queue depth of 4. New SATA SSD's will support up to 32 9 # in flight commands, so it may also be interesting to increase the queue 10 # depth and compare. Note that most real-life usage will not see that 11 # large of a queue depth, so 4 is more representative of normal use. 12 # 13 [global] 14 bs=4k 15 ioengine=libaio 16 iodepth=4 17 size=10g 18 direct=1 19 runtime=60 20 directory=/mount-point-of-ssd 21 filename=ssd.test.file 22 23 [seq-read] 24 rw=read 25 stonewall 26 27 [rand-read] 28 rw=randread 29 stonewall 30 31 [seq-write] 32 rw=write 33 stonewall 34 35 [rand-write] 36 rw=randwrite 37 stonewall 38
