What is the 1-MB I/O performance of Azure Virtual HD on Windows 10 as the system drive "C:"?

The I/O performance of reading and writing 1-MB files of a Azure Virtual HD on Windows 10 as the system drive "C:" can be measured by running SQLIO with multiple 1024-KB blocks with a large stripe factor.

Here is the read performance test of Azure Virtual HD on Windows 10 as the system drive "C:" with 1024-KB blocks.

C:\fyicenter\SQLIO>sqlio -LS -kR -b1024 -i64 -f64 -t1 -s30 -p0

using system counter for latency timings, 10000000 counts per second
1 thread reading for 60 secs from file test.dat
  using 1024KB IOs over 65536KB stripes with 64 IOs per run
  affinity on cpu number 0
size of file test.dat needs to be: 4294967296 bytes
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:    35.22
MBs/sec:    35.22
latency metrics:
Min_Latency(ms): 0
Avg_Latency(ms): 27
Max_Latency(ms): 3020
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+
%: 17  0  0  0  0  0  0  0  0  0  0  0  0  0  0  1  8 15 16 12  8  5  3  2 13

Here is the write performance test of Azure Virtual HD on Windows 10 as the system drive "C:" on 64-KB blocks.

C:\fyicenter\SQLIO>sqlio -LS -kW -b1024 -i64 -f64 -t1 -s30 

using system counter for latency timings, 10000000 counts per second
1 thread writing for 60 secs to file test.dat
  using 1024KB IOs over 65536KB stripes with 64 IOs per run
  affinity on cpu number 0
initialization done
CUMULATIVE DATA:
throughput metrics:
IOs/sec:    23.77
MBs/sec:    23.77
latency metrics:
Min_Latency(ms): 11
Avg_Latency(ms): 41
Max_Latency(ms): 3554
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  3 11 13 11  7  8  7  4  2  2  1  1 29

Reading speed of 1-MB blocks, 35.22 MBs/sec, is slower than reading speeds of 64-KB blocks, 472.10 MBs/sec. But writing speed of 1-MB blocks, 23.77 MBs/sec, is faster than writing speeds of 64-KB blocks, 11.68 MBs/sec.

⇒ Azure Virtual HD on Windows 10 as C: - Maximum Reading Speed

⇐ Azure Virtual HD on Windows 10 as C: - 64-KB Benchmark

⇑ I/O Tests on Azure Virtual HD and Storage

⇑⇑ SQLIO Disk I/O Benchmark Test Tutorials