examples/falloc.fio

   1 [global]
   2 ioengine=falloc
   3 iodepth=1
   4 direct=0
   5 buffered=0
   6 directory=/scratch
   7 nrfiles=1
   8 size=100M
   9 filesize=100M
  10 group_reporting
  11
  12
  13 # Run falloc and punch_hole threads in parallel
  14 # After activity file will be highly fragmented
  15 [falloc-fuzzer]
  16 stonewall
  17 runtime=10
  18 time_based=10
  19 bssplit=4k/10:64k/50:32k/40
  20 rw=randwrite
  21 numjobs=1
  22 filename=fragmented_file
  23
  24 [punch hole-fuzzer]
  25 bs=4k
  26 runtime=10
  27 time_based=10
  28 rw=randtrim
  29 numjobs=2
  30 filename=fragmented_file
  31
  32 ## Mesure IO performance on fragmented file
  33 [sequential aio-dio write]
  34 stonewall
  35 ioengine=libaio
  36 numjobs=1
  37 iodepth=128
  38 buffered=0
  39 direct=1
  40 rw=write
  41 bs=64k
  42 filename=fragmented_file
  43
  44 [sequential buffered read]
  45 stonewall
  46 ioengine=sync
  47 numjobs=1
  48 iodepth=1
  49 buffered=1
  50 direct=0
  51 rw=read
  52 bs=64k
  53 filename=fragmented_file
  54