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

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.

⇒ SanDisk Cruzer Micro Flash Drive - 64-KB Benchmark

⇐ SanDisk Cruzer Blade Flash Drive - Maximum Reading Speed

⇑ I/O Tests on Flash Drives

⇑⇑ SQLIO Disk I/O Benchmark Test Tutorials