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teknoraver

sdcard 6mb erasesize

teknoraver
Dec 4th, 2020 (edited)
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  1. root@macchiatobin:~/src/flashbench# ./flashbench -a /dev/mmcblk1 -b $((3 * 1024))
  2. align 12884901888 pre 490µs on 648µs post 517µs diff 145µs
  3. align 6442450944 pre 512µs on 727µs post 528µs diff 207µs
  4. align 3221225472 pre 547µs on 752µs post 545µs diff 207µs
  5. align 1610612736 pre 538µs on 772µs post 560µs diff 223µs
  6. align 805306368 pre 499µs on 709µs post 526µs diff 196µs
  7. align 402653184 pre 499µs on 718µs post 536µs diff 201µs
  8. align 201326592 pre 498µs on 683µs post 496µs diff 186µs
  9. align 100663296 pre 520µs on 704µs post 518µs diff 185µs
  10. align 50331648 pre 498µs on 681µs post 500µs diff 182µs
  11. align 25165824 pre 496µs on 679µs post 497µs diff 183µs
  12. align 12582912 pre 565µs on 748µs post 520µs diff 205µs
  13. align 6291456 pre 495µs on 566µs post 497µs diff 69.5µs
  14. align 3145728 pre 519µs on 521µs post 521µs diff 346ns
  15. align 1572864 pre 520µs on 521µs post 521µs diff 446ns
  16. align 786432 pre 520µs on 521µs post 521µs diff 932ns
  17. align 393216 pre 519µs on 521µs post 521µs diff 981ns
  18. align 196608 pre 529µs on 530µs post 530µs diff 1.09µs
  19. align 98304 pre 527µs on 529µs post 527µs diff 1.73µs
  20. align 49152 pre 523µs on 524µs post 523µs diff 960ns
  21. align 24576 pre 522µs on 522µs post 523µs diff -41ns
  22. align 12288 pre 536µs on 538µs post 539µs diff 603ns
  23. align 6144 pre 535µs on 535µs post 535µs diff -54ns
  24.  
  25. root@macchiatobin:~/src/flashbench# ./flashbench -a /dev/mmcblk1 -b $((2 * 1024))
  26. align 17179869184 pre 515µs on 640µs post 514µs diff 126µs
  27. align 8589934592 pre 471µs on 614µs post 448µs diff 155µs
  28. align 4294967296 pre 504µs on 760µs post 532µs diff 242µs
  29. align 2147483648 pre 521µs on 773µs post 510µs diff 257µs
  30. align 1073741824 pre 520µs on 714µs post 497µs diff 206µs
  31. align 536870912 pre 518µs on 724µs post 530µs diff 201µs
  32. align 268435456 pre 497µs on 723µs post 545µs diff 202µs
  33. align 134217728 pre 502µs on 653µs post 498µs diff 152µs
  34. align 67108864 pre 542µs on 696µs post 498µs diff 177µs
  35. align 33554432 pre 495µs on 645µs post 496µs diff 150µs
  36. align 16777216 pre 510µs on 725µs post 501µs diff 220µs
  37. align 8388608 pre 497µs on 689µs post 543µs diff 170µs
  38. align 4194304 pre 523µs on 672µs post 495µs diff 163µs
  39. align 2097152 pre 512µs on 676µs post 517µs diff 161µs
  40. align 1048576 pre 520µs on 521µs post 521µs diff 554ns
  41. align 524288 pre 520µs on 521µs post 521µs diff 672ns
  42. align 262144 pre 520µs on 521µs post 521µs diff 712ns
  43. align 131072 pre 519µs on 520µs post 521µs diff 180ns
  44. align 65536 pre 513µs on 514µs post 513µs diff 1.17µs
  45. align 32768 pre 518µs on 519µs post 510µs diff 5.79µs
  46. align 16384 pre 535µs on 535µs post 531µs diff 2.45µs
  47. align 8192 pre 532µs on 533µs post 534µs diff -222ns
  48. align 4096 pre 532µs on 533µs post 534µs diff -477ns
  49.  
  50. root@macchiatobin:~/src/flashbench# blkdiscard /dev/mmcblk1p3
  51.  
  52. root@macchiatobin:~/src/flashbench# ./flashbench -a /dev/mmcblk1 -b $((3 * 1024))
  53. align 12884901888 pre 282µs on 291µs post 281µs diff 9.3µs
  54. align 6442450944 pre 260µs on 266µs post 259µs diff 6.13µs
  55. align 3221225472 pre 303µs on 328µs post 299µs diff 27µs
  56. align 1610612736 pre 297µs on 320µs post 294µs diff 24.2µs
  57. align 805306368 pre 281µs on 292µs post 282µs diff 10.3µs
  58. align 402653184 pre 281µs on 330µs post 321µs diff 29.3µs
  59. align 201326592 pre 281µs on 292µs post 279µs diff 11.9µs
  60. align 100663296 pre 281µs on 292µs post 279µs diff 12µs
  61. align 50331648 pre 281µs on 292µs post 282µs diff 10.2µs
  62. align 25165824 pre 279µs on 290µs post 280µs diff 10.5µs
  63. align 12582912 pre 280µs on 291µs post 279µs diff 12µs
  64. align 6291456 pre 302µs on 325µs post 300µs diff 24.3µs
  65. align 3145728 pre 280µs on 283µs post 282µs diff 1.83µs
  66. align 1572864 pre 280µs on 282µs post 282µs diff 1.23µs
  67. align 786432 pre 280µs on 283µs post 282µs diff 1.84µs
  68. align 393216 pre 280µs on 282µs post 282µs diff 1.48µs
  69. align 196608 pre 279µs on 282µs post 281µs diff 2.11µs
  70. align 98304 pre 283µs on 285µs post 285µs diff 1.68µs
  71. align 49152 pre 281µs on 284µs post 284µs diff 1.34µs
  72. align 24576 pre 280µs on 281µs post 281µs diff 358ns
  73. align 12288 pre 295µs on 295µs post 296µs diff -549ns
  74. align 6144 pre 295µs on 294µs post 293µs diff -774ns
  75.  
  76. root@macchiatobin:~/src/flashbench# ./flashbench -a /dev/mmcblk1 -b $((2 * 1024))
  77. align 17179869184 pre 237µs on 251µs post 236µs diff 14.4µs
  78. align 8589934592 pre 218µs on 233µs post 218µs diff 15.7µs
  79. align 4294967296 pre 256µs on 312µs post 257µs diff 55.6µs
  80. align 2147483648 pre 239µs on 268µs post 235µs diff 31.3µs
  81. align 1073741824 pre 239µs on 274µs post 239µs diff 34.9µs
  82. align 536870912 pre 265µs on 292µs post 251µs diff 34.4µs
  83. align 268435456 pre 238µs on 269µs post 252µs diff 24µs
  84. align 134217728 pre 241µs on 259µs post 236µs diff 20.6µs
  85. align 67108864 pre 239µs on 257µs post 239µs diff 17.7µs
  86. align 33554432 pre 236µs on 254µs post 237µs diff 17.6µs
  87. align 16777216 pre 237µs on 277µs post 237µs diff 40.3µs
  88. align 8388608 pre 261µs on 295µs post 259µs diff 35.1µs
  89. align 4194304 pre 238µs on 273µs post 254µs diff 27.4µs
  90. align 2097152 pre 230µs on 258µs post 234µs diff 26.7µs
  91. align 1048576 pre 235µs on 237µs post 236µs diff 1.65µs
  92. align 524288 pre 238µs on 240µs post 239µs diff 1.58µs
  93. align 262144 pre 235µs on 237µs post 236µs diff 1.61µs
  94. align 131072 pre 238µs on 240µs post 239µs diff 1.42µs
  95. align 65536 pre 237µs on 239µs post 238µs diff 1.75µs
  96. align 32768 pre 236µs on 238µs post 237µs diff 2µs
  97. align 16384 pre 251µs on 251µs post 251µs diff -154ns
  98. align 8192 pre 248µs on 249µs post 250µs diff -214ns
  99. align 4096 pre 250µs on 250µs post 248µs diff 788ns
  100.  
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