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Apacer HT203 flashbench results

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Jan 30th, 2016
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  1. $ sudo fdisk -l /dev/sdb
  2.  
  3. Disk /dev/sdb: 15.5 GB, 15504900096 bytes
  4. 43 heads, 43 sectors/track, 16378 cylinders, total 30283008 sectors
  5. Units = sectors of 1 * 512 = 512 bytes
  6. Sector size (logical/physical): 512 bytes / 512 bytes
  7. I/O size (minimum/optimal): 512 bytes / 512 bytes
  8. Disk identifier: 0xc3072e18
  9.  
  10. Device Boot Start End Blocks Id System
  11. /dev/sdb1 * 8064 30283007 15137472 83 Linux
  12. $ factor 15504900096
  13. 15504900096: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 7 43 131
  14. $ sudo flashbench -a /dev/sdb --blocksize=$[1024]
  15. align 4294967296 pre 690µs on 892µs post 703µs diff 195µs
  16. align 2147483648 pre 714µs on 889µs post 744µs diff 160µs
  17. align 1073741824 pre 714µs on 866µs post 693µs diff 163µs
  18. align 536870912 pre 654µs on 872µs post 663µs diff 213µs
  19. align 268435456 pre 707µs on 905µs post 734µs diff 185µs
  20. align 134217728 pre 693µs on 890µs post 713µs diff 187µs
  21. align 67108864 pre 706µs on 873µs post 687µs diff 177µs
  22. align 33554432 pre 679µs on 885µs post 704µs diff 193µs
  23. align 16777216 pre 717µs on 884µs post 671µs diff 190µs
  24. align 8388608 pre 676µs on 883µs post 723µs diff 184µs
  25. align 4194304 pre 707µs on 877µs post 694µs diff 177µs
  26. align 2097152 pre 691µs on 896µs post 732µs diff 185µs
  27. align 1048576 pre 708µs on 880µs post 666µs diff 193µs
  28. align 524288 pre 685µs on 870µs post 717µs diff 169µs
  29. align 262144 pre 655µs on 871µs post 670µs diff 208µs
  30. align 131072 pre 692µs on 877µs post 739µs diff 161µs
  31. align 65536 pre 729µs on 894µs post 752µs diff 154µs
  32. align 32768 pre 700µs on 877µs post 725µs diff 165µs
  33. align 16384 pre 681µs on 874µs post 711µs diff 179µs
  34. align 8192 pre 693µs on 796µs post 678µs diff 110µs
  35. align 4096 pre 672µs on 692µs post 720µs diff -4246ns
  36. align 2048 pre 672µs on 698µs post 670µs diff 27.3µs
  37. $ sudo flashbench -a /dev/sdb --blocksize=$[1024 * 2]
  38. align 4294967296 pre 758µs on 928µs post 773µs diff 163µs
  39. align 2147483648 pre 732µs on 882µs post 745µs diff 144µs
  40. align 1073741824 pre 738µs on 869µs post 769µs diff 116µs
  41. align 536870912 pre 758µs on 932µs post 756µs diff 176µs
  42. align 268435456 pre 738µs on 871µs post 736µs diff 134µs
  43. align 134217728 pre 764µs on 910µs post 777µs diff 140µs
  44. align 67108864 pre 736µs on 905µs post 739µs diff 168µs
  45. align 33554432 pre 721µs on 877µs post 747µs diff 143µs
  46. align 16777216 pre 766µs on 905µs post 771µs diff 136µs
  47. align 8388608 pre 735µs on 911µs post 770µs diff 159µs
  48. align 4194304 pre 733µs on 865µs post 727µs diff 135µs
  49. align 2097152 pre 733µs on 885µs post 755µs diff 141µs
  50. align 1048576 pre 758µs on 878µs post 780µs diff 109µs
  51. align 524288 pre 734µs on 879µs post 751µs diff 137µs
  52. align 262144 pre 712µs on 861µs post 748µs diff 132µs
  53. align 131072 pre 736µs on 895µs post 732µs diff 161µs
  54. align 65536 pre 742µs on 921µs post 736µs diff 182µs
  55. align 32768 pre 700µs on 887µs post 720µs diff 177µs
  56. align 16384 pre 707µs on 861µs post 739µs diff 138µs
  57. align 8192 pre 726µs on 789µs post 740µs diff 56.3µs
  58. align 4096 pre 694µs on 736µs post 714µs diff 31.8µs
  59. $ sudo flashbench -a /dev/sdb --blocksize=$[1024 * 3]
  60. align 3221225472 pre 712µs on 888µs post 676µs diff 194µs
  61. align 1610612736 pre 689µs on 905µs post 722µs diff 200µs
  62. align 805306368 pre 680µs on 900µs post 683µs diff 219µs
  63. align 402653184 pre 690µs on 917µs post 709µs diff 217µs
  64. align 201326592 pre 687µs on 901µs post 692µs diff 211µs
  65. align 100663296 pre 719µs on 928µs post 755µs diff 191µs
  66. align 50331648 pre 705µs on 916µs post 748µs diff 189µs
  67. align 25165824 pre 705µs on 902µs post 698µs diff 200µs
  68. align 12582912 pre 692µs on 870µs post 719µs diff 164µs
  69. align 6291456 pre 691µs on 903µs post 690µs diff 213µs
  70. align 3145728 pre 689µs on 898µs post 691µs diff 208µs
  71. align 1572864 pre 697µs on 912µs post 706µs diff 211µs
  72. align 786432 pre 692µs on 900µs post 732µs diff 188µs
  73. align 393216 pre 696µs on 908µs post 718µs diff 201µs
  74. align 196608 pre 694µs on 910µs post 681µs diff 222µs
  75. align 98304 pre 693µs on 892µs post 707µs diff 192µs
  76. align 49152 pre 694µs on 921µs post 707µs diff 221µs
  77. align 24576 pre 688µs on 814µs post 728µs diff 106µs
  78. align 12288 pre 696µs on 709µs post 700µs diff 11µs
  79. align 6144 pre 690µs on 709µs post 811µs diff -41334n
  80. $ sudo flashbench -a /dev/sdb --blocksize=$[1024 * 7]
  81. align 3758096384 pre 1.01ms on 1.19ms post 1.01ms diff 183µs
  82. align 1879048192 pre 920µs on 1.11ms post 922µs diff 190µs
  83. align 939524096 pre 883µs on 1.08ms post 859µs diff 210µs
  84. align 469762048 pre 877µs on 1.06ms post 875µs diff 182µs
  85. align 234881024 pre 854µs on 1.06ms post 861µs diff 202µs
  86. align 117440512 pre 891µs on 1.06ms post 846µs diff 193µs
  87. align 58720256 pre 892µs on 1.1ms post 900µs diff 204µs
  88. align 29360128 pre 878µs on 1.09ms post 910µs diff 195µs
  89. align 14680064 pre 901µs on 1.07ms post 901µs diff 171µs
  90. align 7340032 pre 869µs on 1.07ms post 890µs diff 190µs
  91. align 3670016 pre 845µs on 1.05ms post 847µs diff 209µs
  92. align 1835008 pre 888µs on 1.05ms post 843µs diff 188µs
  93. align 917504 pre 878µs on 1.06ms post 871µs diff 190µs
  94. align 458752 pre 891µs on 1.07ms post 874µs diff 183µs
  95. align 229376 pre 877µs on 1.06ms post 879µs diff 178µs
  96. align 114688 pre 857µs on 1.07ms post 878µs diff 204µs
  97. align 57344 pre 857µs on 962µs post 869µs diff 99µs
  98. align 28672 pre 936µs on 891µs post 1.04ms diff -95014n
  99. align 14336 pre 936µs on 1.06ms post 1.05ms diff 65.2µs
  100. $ sudo flashbench -a /dev/sdb --blocksize=$[1024 * 43]
  101. align 2885681152 pre 2.86ms on 3.02ms post 2.88ms diff 145µs
  102. align 1442840576 pre 2.87ms on 2.99ms post 2.88ms diff 118µs
  103. align 721420288 pre 2.85ms on 3ms post 2.88ms diff 134µs
  104. align 360710144 pre 2.87ms on 3.03ms post 2.9ms diff 149µs
  105. align 180355072 pre 2.86ms on 3ms post 2.89ms diff 125µs
  106. align 90177536 pre 2.9ms on 3.04ms post 2.9ms diff 134µs
  107. align 45088768 pre 2.86ms on 3.02ms post 2.92ms diff 128µs
  108. align 22544384 pre 2.89ms on 3.04ms post 2.9ms diff 147µs
  109. align 11272192 pre 2.87ms on 2.98ms post 2.9ms diff 100µs
  110. align 5636096 pre 2.89ms on 2.99ms post 2.86ms diff 113µs
  111. align 2818048 pre 2.88ms on 3.03ms post 2.88ms diff 148µs
  112. align 1409024 pre 2.87ms on 3.01ms post 2.89ms diff 138µs
  113. align 704512 pre 2.92ms on 3.06ms post 2.96ms diff 119µs
  114. align 352256 pre 3.01ms on 2.93ms post 2.91ms diff -29070n
  115. align 176128 pre 2.91ms on 3.14ms post 3.04ms diff 164µs
  116. align 88064 pre 2.95ms on 3.01ms post 3.04ms diff 21.7µs
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