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Why you should turn to AHCI.

post #1 of 5
Thread Starter 
So got my new vertex 2 and heres a few benchies.

1: Installed first, with just a few tweaks done. Non AHCI. 1.29 firmware


Code:
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -read -drive c -count 1 -iocount 256 -ransiz
e 4096'
> Run Time 00:00:00.59
> Disk  Random 4.0 Read                        15.59 MB/s
> Total Run Time 00:00:01.42

C:\\>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize 4096
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -write -drive c -count 1 -iocount 256 -ransi
ze 4096'
> Run Time 00:00:00.37
> Disk  Random 4.0 Write                       17.40 MB/s
> Total Run Time 00:00:00.95

C:\\>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize 524288
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-seq -read -drive c -count 1 -iocount 256 -seqsiz
e 524288'
> Run Time 00:00:11.78
> Disk  Sequential 512.0 Read                  184.70 MB/s
> Total Run Time 00:00:12.37

C:\\>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize 524288
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-seq -write -drive c -count 1 -iocount 256 -seqsi
ze 524288'
> Run Time 00:00:00.84
> Disk  Sequential 512.0 Write                 232.22 MB/s
> Total Run Time 00:00:01.42

C:\\>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize 16384
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -read -drive c -count 1 -iocount 256 -ransiz
e 16384'
> Run Time 00:00:00.38
> Disk  Random 16.0 Read                       52.33 MB/s          6.5
> Total Run Time 00:00:00.95

C:\\>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize 16384
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -write -drive c -count 1 -iocount 256 -ransi
ze 16384'
> Run Time 00:00:00.34
> Disk  Random 16.0 Write                      75.31 MB/s
> Total Run Time 00:00:00.92

C:\\>winsat disk -flush -drive c
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-flush -drive c -seq'
> Run Time 00:00:00.98
> Running: Storage Assessment '-flush -drive c -ran'
> Run Time 00:00:01.01
> Average Read Time with Sequential Writes     0.321 ms          7.9
> Latency: 95th Percentile                     0.932 ms          7.9
> Latency: Maximum                             7.230 ms          7.9
> Average Read Time with Random Writes         0.308 ms          7.9
> Total Run Time 00:00:02.59

2: Changed To AHCI : Still 1.29


Code:
C:\\>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize 4096
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -read -drive c -count 1 -iocount 256 -ransiz
e 4096'
> Run Time 00:00:00.33
> Disk  Random 4.0 Read                        55.61 MB/s
> Total Run Time 00:00:01.87

C:\\>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize 4096
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -write -drive c -count 1 -iocount 256 -ransi
ze 4096'
> Run Time 00:00:00.33
> Disk  Random 4.0 Write                       93.11 MB/s
> Total Run Time 00:00:00.94

C:\\>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize 524288
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-seq -read -drive c -count 1 -iocount 256 -seqsiz
e 524288'
> Run Time 00:00:10.11
> Disk  Sequential 512.0 Read                  240.43 MB/s
> Total Run Time 00:00:10.73

C:\\>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize 524288
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-seq -write -drive c -count 1 -iocount 256 -seqsi
ze 524288'
> Run Time 00:00:00.86
> Disk  Sequential 512.0 Write                 265.33 MB/s
> Total Run Time 00:00:01.47

C:\\>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize 16384
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -read -drive c -count 1 -iocount 256 -ransiz
e 16384'
> Run Time 00:00:00.28
> Disk  Random 16.0 Read                       132.18 MB/s          7.3
> Total Run Time 00:00:00.86

C:\\>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize 16384
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -write -drive c -count 1 -iocount 256 -ransi
ze 16384'
> Run Time 00:00:00.30
> Disk  Random 16.0 Write                      171.48 MB/s
> Total Run Time 00:00:00.90

C:\\>winsat disk -flush -drive c
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-flush -drive c -seq'
> Run Time 00:00:01.08
> Running: Storage Assessment '-flush -drive c -ran'
> Run Time 00:00:01.08
> Average Read Time with Sequential Writes     0.376 ms          7.9
> Latency: 95th Percentile                     1.033 ms          7.9
> Latency: Maximum                             45.394 ms          7.9
> Average Read Time with Random Writes         0.318 ms          7.9
> Total Run Time 00:00:02.73

3. Updated firmware to 1.31


Code:
C:\\>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize 4096
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -read -drive c -count 1 -iocount 256 -ransiz
e 4096'
> Run Time 00:00:00.31
> Disk  Random 4.0 Read                        53.67 MB/s
> Total Run Time 00:00:01.90

C:\\>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize 4096
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -write -drive c -count 1 -iocount 256 -ransi
ze 4096'
> Run Time 00:00:00.31
> Disk  Random 4.0 Write                       26.15 MB/s
> Total Run Time 00:00:00.92

C:\\>winsat disk -seq -read -drive c -count 1 -iocount 256 -seqsize 524288
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-seq -read -drive c -count 1 -iocount 256 -seqsiz
e 524288'
> Run Time 00:00:09.64
> Disk  Sequential 512.0 Read                  251.65 MB/s
> Total Run Time 00:00:10.23

C:\\>winsat disk -seq -write -drive c -count 1 -iocount 256 -seqsize 524288
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-seq -write -drive c -count 1 -iocount 256 -seqsi
ze 524288'
> Run Time 00:00:00.86
> Disk  Sequential 512.0 Write                 260.38 MB/s
> Total Run Time 00:00:01.45

C:\\>winsat disk -ran -read -drive c -count 1 -iocount 256 -ransize 16384
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -read -drive c -count 1 -iocount 256 -ransiz
e 16384'
> Run Time 00:00:00.30
> Disk  Random 16.0 Read                       153.32 MB/s          7.5
> Total Run Time 00:00:00.89

C:\\>winsat disk -ran -write -drive c -count 1 -iocount 256 -ransize 16384
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-ran -write -drive c -count 1 -iocount 256 -ransi
ze 16384'
> Run Time 00:00:00.31
> Disk  Random 16.0 Write                      120.80 MB/s
> Total Run Time 00:00:00.90

C:\\>winsat disk -flush -drive c
Windows System Assessment Tool
> Running: Feature Enumeration ''
> Run Time 00:00:00.00
> Running: Storage Assessment '-flush -drive c -seq'
> Run Time 00:00:01.03
> Running: Storage Assessment '-flush -drive c -ran'
> Run Time 00:00:01.03
> Average Read Time with Sequential Writes     0.311 ms          7.9
> Latency: 95th Percentile                     0.800 ms          7.9
> Latency: Maximum                             41.322 ms          7.9
> Average Read Time with Random Writes         0.280 ms          7.9
> Total Run Time 00:00:02.65


Clearly AHCI is needed to utilize the max powers.

I guess next step is adding intel not ms drivers.
post #2 of 5
AHCI facilitates actual use of SATA features (hot plugging, etc).

On mechanical hard drives you would get NCQ.
On SSD's you would be able to utilize TRIM if your device & OS also support it.
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Waiting on X399
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post #3 of 5
It's faster and easy to switch.
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post #4 of 5
Thread Starter 
It wasn't really a question, rather a statement.
And the benches show just how faster it is.
post #5 of 5
I agree that AHCI is the way to go. I just purchased a Samsung 470 Series 128GB SSD for my Sony Vaio VPCF115FM laptop. I am having a very hard time figuring out how to change to AHCI. I enter the BIOS screen using F2 from start-up and there is nothing in the BIOS to change. Is there another way to change to AHCI?

I have a feeling Sony has it set up so I cannot change it. That would be crazy though. Can anyone help?
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