SanDisk Cruzer Blade Flash Drive - Maximum Writing Speed

Q

What is maximum writing speed of the SanDisk Cruzer Blade 32GB Flash Drive?

✍: FYIcenter.com

A

The best way to find out the maximum writing speed of your SanDisk Cruzer Blade 32GB Flash Drive is to run writing tests with a single large block of different block sizes:

sqlio -LS -kR -i1 -f1 -t1 -s60 -p0 ...

If we run SQLIO with above options and different block sizes, we should be able to find the maximum writing speed:

             Throughput   Throughput   Latency
Block Size      MBs/sec      IOs/sec        ms
----------   ----------   ----------   -------
      -b16         4.59       294.14         2
      -b64         8.37       134.05         3
     -b256         8.71        34.87        28
    -b1024         8.50         8.50       217
    -b4096         8.68         2.17       460
   -b16384         8.71         0.54      1835
   -b65536         7.78         0.12      8218
  -b262144         5.12         0.02     49931

As you can see, the maximum writing speed, 8.71 MBs/sec is reached with a block size of "-b256", or 256 KB.

Comparing to the maximum reading speed of 18.55 MBs/sec, the maximum writing speed of 8.71 MBs/sec is about 2 times slower.

 

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2019-07-30, 135👍, 0💬