What is the average I/O performance of Kingston DataTraveler 101 7GB flash drive?

The average I/O performance of a flash drive can be measured by running SQLIO with multiple 64-KB blocks with a large stripe factor.

Here is the read performance test of Kingston DataTraveler 101 7GB flash Drive on 64-KB blocks.

C:\fyicenter\SQLIO>sqlio -LS -kR -b64 -i64 -f64 -t1 -s30 -p0 E:\test.dat

1 thread reading for 30 secs from file E:\test.dat
  using 64KB IOs over 4096KB stripes with 64 IOs per run
size of file E:\test.dat needs to be: 268435456 bytes
expanding E:\test.dat ... done.
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:   242.77
MBs/sec:    15.17
latency metrics:
Min_Latency(ms): 3
Avg_Latency(ms): 3
Max_Latency(ms): 19
histogram:
ms: 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%:  0  0  0 28 71  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0

Here is the write performance test of Kingston DataTraveler 101 7GB flash Drive on 64-KB blocks.

C:\fyicenter\SQLIO>sqlio -LS -kW -b64 -i64 -f64 -t1 -s30 -p0 E:\test.dat

using system counter for latency timings, 2343896 counts per second
1 thread writing for 30 secs to file E:\test.dat
  using 64KB IOs over 4096KB stripes with 64 IOs per run
size of file E:\test.dat needs to be: 268435456 bytes
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:     3.39
MBs/sec:     0.21
latency metrics:
Min_Latency(ms): 11
Avg_Latency(ms): 294
Max_Latency(ms): 616
histogram:
ms: 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24+
%:  0  0  0  0  0  0  0  0  0  0  0  1  1 19  6 17  1  0  0  0  0  0  0  0 55

As you can see, in the simulation of multiple 64-KB file I/O, reading speed is 15.17 MBs/sec, and writing speed is 0.21 MBs/sec. So for a USB flash drive, reading is much faster than writing.

⇒ Kingston DataTraveler 101 Flash Drive - Maximum Reading Speed

⇐ SanDisk Cruzer Micro Flash Drive - Maximum Writing Speed

⇑ I/O Tests on Flash Drives

⇑⇑ SQLIO Disk I/O Benchmark Test Tutorials