What is the 64-KB I/O benchmark performance of PNY Attaché Flash Drive (256 MB capacity)?

The I/O performance of reading and writing 64-KB files of a PNY Attaché Flash Drive (256 MB capacity) can be measured by running SQLIO with multiple 64-KB blocks with a large stripe factor.

Here is the read performance test of PNY Attaché Flash Drive (256 MB capacity) with 64-KB blocks.

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

using system counter for latency timings, 2343896 counts per second
1 thread reading for 300 secs from file D:\test.dat
	using 64KB IOs over 2048KB stripes with 64 IOs per run
	affinity on cpu number 0
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:    74.11
MBs/sec:     4.63
latency metrics:
Min_Latency(ms): 13
Avg_Latency(ms): 13
Max_Latency(ms): 37
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  0  0 99  1  0  0  0  0  0  0  0  0  0  0
07:54 AM

Here is the write performance test of PNY Attaché Flash Drive (256 MB capacity) on 64-KB blocks.

C:\fyicenter\SQLIO>sqlio -LS -kW -b64 -i64 -f64 -t1 -s30 

using system counter for latency timings, 2343896 counts per second
1 thread writing for 300 secs to file D:\test.dat
	using 64KB IOs over 2048KB stripes with 64 IOs per run
	affinity on cpu number 0
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:    19.83
MBs/sec:     1.23
latency metrics:
Min_Latency(ms): 23
Avg_Latency(ms): 49
Max_Latency(ms): 95
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  0  0  0  0  0  0  0  0  0  0  0  0  0 100

As you can see, in the simulation of multiple 64-KB file I/O, reading speed is 4.63 MBs/sec, and writing speed is 1.23 MBs/sec. So for a PNY Attaché Flash Drive, reading is about 4 times faster than writing.

⇒ PNY Attaché Flash Drive - Maximum Reading Speed

⇐ Kingston DataTraveler 101 Flash Drive - Maximum Writing Speed

⇑ I/O Tests on Flash Drives

⇑⇑ SQLIO Disk I/O Benchmark Test Tutorials