Differences between revisions 1 and 2
Revision 1 as of 2020-08-02 18:01:06
Size: 1086
Revision 2 as of 2020-08-02 18:02:54
Size: 1086
Deletions are marked like this. Additions are marked like this.
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   READ: bw=10.3MiB/s (10.8MB/s), 10.3MiB/s-10.3MiB/s (10.8MB/s-10.8MB/s), io=47.0MiB (50.3MB), run=4664-4664msec
  WRITE: bw=3523KiB/s (3608kB/s), 3523KiB/s-3523KiB/s (3608kB/s-3608kB/s), io=16.0MiB (16.8MB), run=4664-4664msec
   READ: bw=11.1MiB/s (11.6MB/s), 11.1MiB/s-11.1MiB/s (11.6MB/s-11.6MB/s), io=47.0MiB (50.3MB), run=4324-4324msec
  WRITE: bw=3800KiB/s (3891kB/s), 3800KiB/s-3800KiB/s (3891kB/s-3891kB/s), io=16.0MiB (16.8MB), run=4324-4324msec

eMMC and SD I/O tests

Tests executed with:

  • fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=64M --readwrite=randrw --rwmixread=75

Result: best of 3 runs

ext4 FS on eMMC


  • READ: bw=6551KiB/s (6708kB/s), 6551KiB/s-6551KiB/s (6708kB/s-6708kB/s), io=47.0MiB (50.3MB), run=7496-7496msec
  • WRITE: bw=2192KiB/s (2245kB/s), 2192KiB/s-2192KiB/s (2245kB/s-2245kB/s), io=16.0MiB (16.8MB), run=7496-7496msec

F2FS FS on eMMC, without encryption nor compression


  • READ: bw=11.1MiB/s (11.6MB/s), 11.1MiB/s-11.1MiB/s (11.6MB/s-11.6MB/s), io=47.0MiB (50.3MB), run=4324-4324msec
  • WRITE: bw=3800KiB/s (3891kB/s), 3800KiB/s-3800KiB/s (3891kB/s-3891kB/s), io=16.0MiB (16.8MB), run=4324-4324msec

ext4 on SD card


  • READ: bw=2595KiB/s (2657kB/s), 2595KiB/s-2595KiB/s (2657kB/s-2657kB/s), io=47.0MiB (50.3MB), run=18924-18924msec
  • WRITE: bw=868KiB/s (889kB/s), 868KiB/s-868KiB/s (889kB/s-889kB/s), io=16.0MiB (16.8MB), run=18924-18924msec