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  1. pi@raspberrypi ~ $% fio fiotest
  2. file1: (g=0): rw=randread, bs=128K-128K/128K-128K, ioengine=libaio, iodepth=4
  3. file2: (g=0): rw=randread, bs=128K-128K/128K-128K, ioengine=libaio, iodepth=32
  4. file3: (g=0): rw=randread, bs=128K-128K/128K-128K, ioengine=libaio, iodepth=8
  5. file4: (g=0): rw=randread, bs=128K-128K/128K-128K, ioengine=libaio, iodepth=16
  6. 2.0.8
  7. Starting 4 processes
  8. file1: Laying out IO file(s) (1 file(s) / 512MB)
  9. file2: Laying out IO file(s) (1 file(s) / 512MB)
  10. file3: Laying out IO file(s) (1 file(s) / 512MB)
  11. file4: Laying out IO file(s) (1 file(s) / 512MB)
  12. Jobs: 1 (f=1): [r___] [100.0% done] [20887K/0K /s] [163 /0 iops] [eta 00m:00s]
  13. file1: (groupid=0, jobs=1): err= 0: pid=1993
  14. read : io=524288KB, bw=5167.8KB/s, iops=40 , runt=101455msec
  15. slat (usec): min=287 , max=16299 , avg=370.50, stdev=259.40
  16. clat (msec): min=2 , max=1037 , avg=98.56, stdev=161.55
  17. lat (msec): min=18 , max=1037 , avg=98.95, stdev=161.55
  18. clat percentiles (msec):
  19. | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 24], 20.00th=[ 24],
  20. | 30.00th=[ 25], 40.00th=[ 25], 50.00th=[ 25], 60.00th=[ 63],
  21. | 70.00th=[ 82], 80.00th=[ 105], 90.00th=[ 231], 95.00th=[ 396],
  22. | 99.00th=[ 873], 99.50th=[ 938], 99.90th=[ 996], 99.95th=[ 996],
  23. | 99.99th=[ 1037]
  24. bw (KB/s) : min= 401, max=20992, per=29.59%, avg=6116.22, stdev=6567.47
  25. lat (msec) : 4=0.02%, 20=1.25%, 50=53.96%, 100=23.05%, 250=12.99%
  26. lat (msec) : 500=4.35%, 750=2.00%, 1000=2.34%, 2000=0.05%
  27. cpu : usr=0.50%, sys=1.78%, ctx=4344, majf=0, minf=0
  28. IO depths : 1=0.1%, 2=0.1%, 4=99.9%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
  29. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  30. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  31. issued : total=r=0/w=4096/d=0, short=r=0/w=0/d=0
  32. file2: (groupid=0, jobs=1): err= 0: pid=1994
  33. read : io=524288KB, bw=10251KB/s, iops=80 , runt= 51143msec
  34. slat (usec): min=230 , max=21166 , avg=390.77, stdev=363.28
  35. clat (msec): min=13 , max=1271 , avg=398.65, stdev=299.12
  36. lat (msec): min=14 , max=1271 , avg=399.06, stdev=299.12
  37. clat percentiles (msec):
  38. | 1.00th=[ 24], 5.00th=[ 42], 10.00th=[ 61], 20.00th=[ 104],
  39. | 30.00th=[ 165], 40.00th=[ 245], 50.00th=[ 334], 60.00th=[ 437],
  40. | 70.00th=[ 553], 80.00th=[ 693], 90.00th=[ 848], 95.00th=[ 955],
  41. | 99.00th=[ 1106], 99.50th=[ 1156], 99.90th=[ 1254], 99.95th=[ 1270],
  42. | 99.99th=[ 1270]
  43. bw (KB/s) : min= 3324, max=16606, per=49.41%, avg=10213.89, stdev=2590.95
  44. lat (msec) : 20=0.37%, 50=7.30%, 100=11.65%, 250=21.63%, 500=25.07%
  45. lat (msec) : 750=18.04%, 1000=12.77%, 2000=3.17%
  46. cpu : usr=1.09%, sys=3.58%, ctx=4307, majf=0, minf=0
  47. IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=0.4%, 32=99.2%, >=64=0.0%
  48. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  49. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
  50. issued : total=r=0/w=4096/d=0, short=r=0/w=0/d=0
  51. file3: (groupid=0, jobs=1): err= 0: pid=1995
  52. read : io=524288KB, bw=5850.6KB/s, iops=45 , runt= 89614msec
  53. slat (usec): min=248 , max=2682 , avg=393.08, stdev=101.20
  54. clat (msec): min=11 , max=1213 , avg=174.48, stdev=208.53
  55. lat (msec): min=11 , max=1213 , avg=174.89, stdev=208.53
  56. clat percentiles (msec):
  57. | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 31], 20.00th=[ 50],
  58. | 30.00th=[ 64], 40.00th=[ 75], 50.00th=[ 87], 60.00th=[ 104],
  59. | 70.00th=[ 165], 80.00th=[ 243], 90.00th=[ 469], 95.00th=[ 693],
  60. | 99.00th=[ 947], 99.50th=[ 1004], 99.90th=[ 1123], 99.95th=[ 1188],
  61. | 99.99th=[ 1221]
  62. bw (KB/s) : min= 221, max=15298, per=29.96%, avg=6193.32, stdev=4720.19
  63. lat (msec) : 20=2.05%, 50=18.60%, 100=38.04%, 250=22.07%, 500=9.91%
  64. lat (msec) : 750=5.32%, 1000=3.49%, 2000=0.51%
  65. cpu : usr=0.66%, sys=2.05%, ctx=4355, majf=0, minf=0
  66. IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=99.8%, 16=0.0%, 32=0.0%, >=64=0.0%
  67. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  68. complete : 0=0.0%, 4=100.0%, 8=0.1%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  69. issued : total=r=0/w=4096/d=0, short=r=0/w=0/d=0
  70. file4: (groupid=0, jobs=1): err= 0: pid=1996
  71. read : io=524288KB, bw=7716.1KB/s, iops=60 , runt= 67940msec
  72. slat (usec): min=258 , max=7936 , avg=388.53, stdev=163.46
  73. clat (msec): min=17 , max=1220 , avg=264.77, stdev=246.81
  74. lat (msec): min=17 , max=1220 , avg=265.18, stdev=246.81
  75. clat percentiles (msec):
  76. | 1.00th=[ 24], 5.00th=[ 31], 10.00th=[ 43], 20.00th=[ 70],
  77. | 30.00th=[ 100], 40.00th=[ 145], 50.00th=[ 188], 60.00th=[ 227],
  78. | 70.00th=[ 277], 80.00th=[ 424], 90.00th=[ 685], 95.00th=[ 832],
  79. | 99.00th=[ 1029], 99.50th=[ 1057], 99.90th=[ 1156], 99.95th=[ 1188],
  80. | 99.99th=[ 1221]
  81. bw (KB/s) : min= 744, max=17049, per=38.20%, avg=7896.32, stdev=4063.75
  82. lat (msec) : 20=0.37%, 50=12.82%, 100=16.72%, 250=35.72%, 500=17.58%
  83. lat (msec) : 750=9.30%, 1000=6.20%, 2000=1.29%
  84. cpu : usr=0.88%, sys=2.68%, ctx=4325, majf=0, minf=0
  85. IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.2%, 16=99.6%, 32=0.0%, >=64=0.0%
  86. submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
  87. complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
  88. issued : total=r=0/w=4096/d=0, short=r=0/w=0/d=0
  89.  
  90. Run status group 0 (all jobs):
  91. READ: io=2048.0MB, aggrb=20670KB/s, minb=5167KB/s, maxb=10251KB/s, mint=51143msec, maxt=101455msec
  92.  
  93. Disk stats (read/write):
  94. mmcblk0: ios=18720/2, merge=145/0, ticks=4502140/240, in_queue=4502050, util=100.00%
  95. fio fiotest 3.04s user 45.32s system 5% cpu 13:48.30 total
  96. pi@raspberrypi ~ $% cat fiotest
  97. [global]
  98. ioengine=libaio
  99. buffered=0
  100. rw=randread
  101. bs=128k
  102. size=512m
  103. directory=data1
  104.  
  105. [file1]
  106. iodepth=4
  107.  
  108. [file2]
  109. iodepth=32
  110.  
  111. [file3]
  112. iodepth=8
  113.  
  114. [file4]
  115. iodepth=16
  116. pi@raspberrypi ~ $%
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