PNY Attaché Flash Drive - Maximum Reading Speed

Q

What is maximum reading speed of the PNY Attaché Flash Drive (256 MB capacity)?

✍: FYIcenter.com

A

The best way to find out the maximum reading speed of your PNY Attaché Flash Drive is to run reading 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 reading speed:

             Throughput   Throughput   Latency
Block Size      MBs/sec      IOs/sec        ms
----------   ----------   ----------   -------
      -b16         3.01       192.70         4
      -b64         4.60        73.61        13
     -b256         4.66        18.65        53
    -b1024         4.66         4.66       213
    -b4096         4.67         1.16       854
   -b16384         4.68         0.29      3415
   -b65536         4.67         0.07     13694

As you can see, the maximum reading speed, 4.66 MBs/sec is reached with a block size of "-b256", or 256 KB. As the block size increases higher, the reading speed remains the same at 4.66 MBs/sec.

 

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2019-07-19, 147👍, 0💬