Hi Marios

OK, drives formatted with HDDErase level 1. OS installed back from an image. Benchmarks below are on a 128K strip. First test is with cache, second is without.

Benchmarks show improvements so it seems that previously results have suffered from fragmentation.

I was still not able to shrink the volume after the format so in SDD terms it seems it was full. I'm therefore wondering if reducing the partition size would make any difference. Reducing the partition is going to involve a fresh format and a fresh install, which is going to be a lot of work, especially as I will then have to do it all again on a full partition.

I can do it if you really think it would be worthwhile, but I'm inclined to think that all of the previously posted tests were effectively on a full drive.

128 Strip - With Cache
Microsoft Windows [Version 6.1.7000]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\richard>bnch c
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
16384
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 16384'
> Run Time 00:00:00.25
> Disk Random 16.0 Read 214.51 MB/s 7.8
> Total Run Time 00:00:00.90

C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
32768
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 32768'
> Run Time 00:00:00.28
> Disk Random 32.0 Read 155.79 MB/s
> Total Run Time 00:00:00.92
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 65536'
> Run Time 00:00:00.26
> Disk Random 64.0 Read 366.56 MB/s
> Total Run Time 00:00:00.86
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 131072'
> Run Time 00:00:00.28
> Disk Random 128.0 Read 362.86 MB/s
> Total Run Time 00:00:00.84
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 262144'
> Run Time 00:00:00.36
> Disk Random 256.0 Read 495.89 MB/s
> Total Run Time 00:00:01.00
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 524288'
> Run Time 00:00:00.50
> Disk Random 512.0 Read 495.22 MB/s
> Total Run Time 00:00:01.15
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 1048576'
> Run Time 00:00:00.73
> Disk Random 1024.0 Read 487.14 MB/s
> Total Run Time 00:00:01.34
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
16384
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 16384'
> Run Time 00:00:00.25
> Disk Random 16.0 Write 503.01 MB/s
> Total Run Time 00:00:00.83
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
32768
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 32768'
> Run Time 00:00:00.26
> Disk Random 32.0 Write 566.24 MB/s
> Total Run Time 00:00:00.89

C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 65536'
> Run Time 00:00:00.25
> Disk Random 64.0 Write 617.30 MB/s
> Total Run Time 00:00:00.89
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 131072'
> Run Time 00:00:00.28
> Disk Random 128.0 Write 822.24 MB/s
> Total Run Time 00:00:00.87
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 262144'
> Run Time 00:00:00.25
> Disk Random 256.0 Write 883.89 MB/s
> Total Run Time 00:00:00.83
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 524288'
> Run Time 00:00:00.42
> Disk Random 512.0 Write 841.58 MB/s
> Total Run Time 00:00:01.04
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 1048576'
> Run Time 00:00:00.51
> Disk Random 1024.0 Write 919.79 MB/s
> Total Run Time 00:00:01.15
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 65536'
> Run Time 00:00:01.92
> Disk Sequential 64.0 Read 495.42 MB/s 7.9
> Total Run Time 00:00:02.53
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 131072'
> Run Time 00:00:02.03
> Disk Sequential 128.0 Read 500.33 MB/s
> Total Run Time 00:00:02.61
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 262144'
> Run Time 00:00:03.17
> Disk Sequential 256.0 Read 457.04 MB/s
> Total Run Time 00:00:03.81

C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 524288'
> Run Time 00:00:03.98
> Disk Sequential 512.0 Read 496.07 MB/s
> Total Run Time 00:00:04.60
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 1048576'
> Run Time 00:00:05.84
> Disk Sequential 1024.0 Read 487.97 MB/s
> Total Run Time 00:00:06.41
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 65536'
> Run Time 00:00:00.25
> Disk Sequential 64.0 Write 862.28 MB/s
> Total Run Time 00:00:00.86
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 131072'
> Run Time 00:00:00.26
> Disk Sequential 128.0 Write 869.26 MB/s
> Total Run Time 00:00:00.90
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 262144'
> Run Time 00:00:00.31
> Disk Sequential 256.0 Write 913.64 MB/s
> Total Run Time 00:00:00.95
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 524288'
> Run Time 00:00:00.41
> Disk Sequential 512.0 Write 739.18 MB/s
> Total Run Time 00:00:00.98
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 1048576'
> Run Time 00:00:00.84
> Disk Sequential 1024.0 Write 497.46 MB/s
> Total Run Time 00:00:01.45
C:\Users\richard>

128 Strip - Without Cache
Microsoft Windows [Version 6.1.7000]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\richard>bnch c
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
16384
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 16384'
> Run Time 00:00:00.26
> Disk Random 16.0 Read 227.08 MB/s 7.9
> Total Run Time 00:00:00.92
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
32768
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 32768'
> Run Time 00:00:00.23
> Disk Random 32.0 Read 314.70 MB/s
> Total Run Time 00:00:00.81
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 65536'
> Run Time 00:00:00.28
> Disk Random 64.0 Read 375.29 MB/s
> Total Run Time 00:00:00.90
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 131072'
> Run Time 00:00:00.33
> Disk Random 128.0 Read 423.32 MB/s
> Total Run Time 00:00:00.98
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 262144'
> Run Time 00:00:00.39
> Disk Random 256.0 Read 482.48 MB/s
> Total Run Time 00:00:01.03
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 524288'
> Run Time 00:00:00.47
> Disk Random 512.0 Read 493.05 MB/s
> Total Run Time 00:00:01.04
C:\Users\richard>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -read -drive c -count 1 -iocount 25
6 -ransize 1048576'
> Run Time 00:00:00.76
> Disk Random 1024.0 Read 481.65 MB/s
> Total Run Time 00:00:01.40
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
16384
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 16384'
> Run Time 00:00:00.28
> Disk Random 16.0 Write 195.55 MB/s
> Total Run Time 00:00:00.92
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
32768
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 32768'
> Run Time 00:00:00.28
> Disk Random 32.0 Write 271.13 MB/s
> Total Run Time 00:00:00.92
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 65536'
> Run Time 00:00:00.27
> Disk Random 64.0 Write 294.58 MB/s
> Total Run Time 00:00:00.84

C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 131072'
> Run Time 00:00:00.34
> Disk Random 128.0 Write 337.70 MB/s
> Total Run Time 00:00:00.98
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 262144'
> Run Time 00:00:00.41
> Disk Random 256.0 Write 396.62 MB/s
> Total Run Time 00:00:01.06
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 524288'
> Run Time 00:00:00.61
> Disk Random 512.0 Write 390.93 MB/s
> Total Run Time 00:00:01.20
C:\Users\richard>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-ran -write -drive c -count 1 -iocount 2
56 -ransize 1048576'
> Run Time 00:00:00.90
> Disk Random 1024.0 Write 399.77 MB/s
> Total Run Time 00:00:01.50
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 65536'
> Run Time 00:00:02.31
> Disk Sequential 64.0 Read 470.80 MB/s 7.9
> Total Run Time 00:00:02.95

C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 131072'
> Run Time 00:00:02.56
> Disk Sequential 128.0 Read 492.77 MB/s
> Total Run Time 00:00:03.20
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 262144'
> Run Time 00:00:03.06
> Disk Sequential 256.0 Read 488.43 MB/s
> Total Run Time 00:00:03.70
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 524288'
> Run Time 00:00:04.15
> Disk Sequential 512.0 Read 489.95 MB/s
> Total Run Time 00:00:04.79
C:\Users\richard>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -read -drive c -count 1 -iocount 25
6 -seqsize 1048576'
> Run Time 00:00:06.30
> Disk Sequential 1024.0 Read 487.26 MB/s
> Total Run Time 00:00:06.94
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
65536
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 65536'
> Run Time 00:00:00.26
> Disk Sequential 64.0 Write 923.00 MB/s
> Total Run Time 00:00:00.83
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
131072
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 131072'
> Run Time 00:00:00.30
> Disk Sequential 128.0 Write 598.48 MB/s
> Total Run Time 00:00:00.90
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
262144
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 262144'
> Run Time 00:00:00.41
> Disk Sequential 256.0 Write 467.50 MB/s
> Total Run Time 00:00:01.04
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
524288
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 524288'
> Run Time 00:00:00.59
> Disk Sequential 512.0 Write 423.42 MB/s
> Total Run Time 00:00:01.22
C:\Users\richard>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize
1048576
Windows System Assessment Tool
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.00
> Running: Storage Assessment v2.0.0.0 '-seq -write -drive c -count 1 -iocount 2
56 -seqsize 1048576'
> Run Time 00:00:00.86
> Disk Sequential 1024.0 Write 421.25 MB/s
> Total Run Time 00:00:01.45
C:\Users\richard>