What is the 64-KB I/O benchmark performance of Azure Virtual HD on Windows 10 as the application drive "D:"?

The I/O performance of reading and writing 64-KB files on an Azure Virtual HD on Windows 10 as the application drive "D:" can be measured by running SQLIO with multiple 64-KB blocks with a large stripe factor.

Here is the read performance test of Azure Virtual HD on Windows 10 as the application drive "D:" with 64-KB blocks.

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

using system counter for latency timings, 10000000 counts per second
1 thread reading for 60 secs from file d:\test.dat
  using 64KB IOs over 4096KB stripes with 64 IOs per run
  affinity on cpu number 0
size of file d:\test.dat needs to be: 268435456 bytes
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:   791.78
MBs/sec:    49.48
latency metrics:
Min_Latency(ms): 0
Avg_Latency(ms): 0
Max_Latency(ms): 217
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+
%: 98  1  0  0  0  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 Azure Virtual HD on Windows 10 as the application drive "D:" on 64-KB blocks.

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

using system counter for latency timings, 10000000 counts per second
1 thread writing for 60 secs to file d:\test.dat
  using 64KB IOs over 4096KB stripes with 64 IOs per run
  affinity on cpu number 0
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:   400.16
MBs/sec:    25.01
latency metrics:
Min_Latency(ms): 0
Avg_Latency(ms): 2
Max_Latency(ms): 215
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+
%: 98  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  1

As you can see, in the simulation of multiple 64-KB file I/O, reading speed is 49.48 MBs/sec, and writing speed is 25.01 MBs/sec. Comparing to drive "C", writing on "D" is faster. So the operating system running on "C" has a impact on writing operations.

⇒ Azure Virtual HD on Windows 10 as D: - 1-MB Benchmark

⇐ Azure Virtual HD on Windows 10 as C: - Maximum Writing Speed

⇑ I/O Tests on Azure Virtual HD and Storage

⇑⇑ SQLIO Disk I/O Benchmark Test Tutorials