1 # Example ftruncate engine jobs 2 3 [global] 4 ioengine=ftruncate 5 directory=/scratch 6 size=102404k ; 100Mb+4k 7 stonewall 8 filename=truncate 9 runtime=10s 10 time_based 11 direct=1 12 # 13 # bs option is stub here. Truncation is performed on the current block offset. 14 # blocksize value is ignored 15 bs=4k 16 17 # truncate the file to 4Kbytes then repeatedly grow the file back to just over 18 # its original size using subsequent truncates 19 [grow-truncate] 20 rw=write 21 22 # Repeatedly change a file to a random size between 0Kbytes and 100Mb 23 # using truncates 24 [rand-truncate] 25 rw=randwrite 26 norandommap 27 28
