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#46 RE: How to boost the AHCI performance of Intel Chipset systems by Fernando 08.12.2017 11:23

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@Vasudev:
It is hard to believe, that your notebook's battery died because you had followed by advices given within the start post of this thread.
Note: If you want to compare the performance of dfferent storage drivers (here: NVMe) on a mobile system, you should plug in your power connector from the beginning to the end of your tests.

Can you please repeat your benchmark comparison tests without any registry tweaks by using Anvil's Storage Utilities (gives more realistic and meaningful results)?

#47 RE: How to boost the AHCI performance of Intel Chipset systems by Vasudev 08.12.2017 11:59

@Fernando:
I never said that the battery died because of your guide. Not your fault at all. You can check alienware battery related issue where your battery dies within a year suddenly. So that's the reason I reverted to Windows default. I never said I run any benchmark on battery. The battery simply gets very hot, I mean very hot when you bench or game, so I refrained from doing it.

Zitat von Fernando im Beitrag #46
Can you please repeat your benchmark comparison tests without any registry tweaks by using Anvil's Storage Utilities (gives more realistic and meaningful results)?
Okay I'll try it out.

EDIT by Fernando: Unneeded part of the fully quoted post removed and replaced by directly addressing (to save space)

#48 RE: How to boost the AHCI/NVMe performance of Intel Chipset systems by panosxidis 08.12.2017 13:37

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Guys i have mp500 my standard NVM express controller is a 65 Limit is ok?

#49 RE: How to boost the AHCI/NVMe performance of Intel Chipset systems by Vasudev 08.12.2017 13:56

If your PC is post-Haswell you can increase it to 2048.
Fernando needs to test it and approve so for now don't change it.

#50 RE: How to boost the AHCI/NVMe performance of Intel Chipset systems by panosxidis 08.12.2017 13:57

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i have broadwell-e 6950X on asus rampage V x99

#51 RE: How to boost the AHCI/NVMe performance of Intel Chipset systems by Vasudev 08.12.2017 14:07

1. Anvil using NVMe Tweaked:


2. Anvil NVMe Stock MSFT:


3. CDM on STOCK NVMe:


4. CDM on NVMe Tweaked:


5. Anvil Write Through Cache on Stock NVMe:


6. Anvil Write through cache enabled on NVME tweaked:


Note: Stock NVMe means default MSFT NVME driver with Message limit 65 {MSI-X enabled}
Tweaked NVME means default MSFT driver with Message limit increased to 2048.{MSI-X enabled}
Anvil Storage app. settings was changed to enable Write Through to speed up writing.
Write cache was enabled and disk flushing was unchecked.

#52 RE: How to boost the AHCI performance of Intel Chipset systems by Fernando 08.12.2017 17:20

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Zitat von Vasudev im Beitrag #51
Anvil Benching produced damn low writes on tweaked nvme and non tweaked NVMe driver.
What means "tweaked"? Did you execute just your registry tweak, the "Write Caching" tweak I propose or did you tweak everything?
All I can say is: You will never get that bad WRITE scores, if you had checked both "Write Caching options" of the related Disk Drive from within the Device Manager.

By the way:
1. The inserted 2 last pictures ("Stock NVme" and "Tweaked NVMe") are obviously identical.
2. Screenshot images look much better, if you hit Alt+Print, open the MS tool named "Paint", paste and crop the screenshot, save it as *.png or *.jpg picture and insert it by using the Forum Software. For details please (look >here< and >here<.

#53 RE: How to boost the AHCI performance of Intel Chipset systems by Vasudev 08.12.2017 17:35

Zitat von Fernando im Beitrag #52
Zitat von Vasudev im Beitrag #51
Anvil Benching produced damn low writes on tweaked nvme and non tweaked NVMe driver.
What means "tweaked"? Did you execute just your registry tweak, the "Write Caching" tweak I propose or did you tweak everything?
All I can say is: You will never get that bad WRITE scores, if you had checked both "Write Caching options" of the related Disk Drive from within the Device Manager.

By the way:
1. The inserted 2 last pictures ("Stock NVme" and "Tweaked NVMe") are obviously identical.
2. Screenshot images look much better, if you hit Alt+Print, open the MS tool named "Paint", paste and crop the screenshot, save it as *.png or *.jpg picture and insert it by using the Forum Software. For details please (look >here< and >here<.

I'll re-upload it. It seems some portion is cut-off. I'll take a look.
Okay fixed it.
Write caching was enabled and Disk buffer flushing is unchecked.
Stock NVMe means MSFT default NVMe driver while Tweaked NVMe means MSFT default NVMe driver which has Message Limit increased from 65 to 2048.

#54 RE: How to boost the AHCI performance of Intel Chipset systems by Fernando 08.12.2017 17:54

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Zitat von Vasudev im Beitrag #53
It seems some portion is cut-off.
To prevent this, I recommend to hit Alt+Print simultaneously (the keys may be different for your mobile system). This will take just the screenshot of the currently open window (here: GUI of the benchmark tool).

#55 RE: How to boost the AHCI performance of Intel Chipset systems by Vasudev 08.12.2017 18:13

Zitat von Fernando im Beitrag #54
Zitat von Vasudev im Beitrag #53
It seems some portion is cut-off.
To prevent this, I recommend to hit Alt+Print simultaneously (the keys may be different for your mobile system). This will take just the screenshot of the currently open window (here: GUI of the benchmark tool).


I used in built screenshot of Anvil and snipping tool. maybe its resizing issue from my end when I select Auto sizing for images. Next time I'll upload the full size. I got the option in forum software. It seems Anvil built in screenshot only selects the needed portions.

#56 RE: How to boost the AHCI performance of Intel Chipset systems by Vasudev 08.12.2017 21:22

@Fernando I missed some text, don't even remember what it was. Well, I added my test methodology and you can test it as well. Your drive will be 2X faster than mine.

Is there any name limit on images? Totally confused.

#57 RE: How to boost the AHCI performance of Intel Chipset systems by Fernando 08.12.2017 21:36

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@Vasudev:
Thanks for having added the text. I think, that post #51 is now as it should be. Your first pictures were too big and used much more space than needed.

Zitat von Vasudev im Beitrag #56
Well, I added my test methodology and you can test it as well. Your drive will be 2X faster than mine.
I will test it tomorrow, if I have the required time.
Zitat von Vasudev im Beitrag #56
Is there any name limit on images?
No, I have renamed your pictures to remember the exact order.

#58 RE: How to boost the AHCI performance of Intel Chipset systems by Fernando 09.12.2017 18:40

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@Vasudev:
The more I compare your and my benchmark results, the more I doubt, that your proposed registry modification has any noticeable effect on the performance of your NVMe SSD. As I already have written, I suspect, that it were just the wrong resp. not optimized "Write-caching Policy"settings within the Device Manager, which may have caused the poor NVMe SSD performance while WRITING.
Before I do the related tests myself with my Xiaomi notebook, I would like to see just 2 additional Anvil benchmark results from your side:

  • a) running the Win10 in-box NVMe driver without your registry tweak and
  • b) running the Win10 in-box NVMe driver after having executed your proposed registry tweak.

Very important: Both tests should be done under the following conditions:
  1. Before you start with the tests, make sure, that both "Write-caching Policies" of your Samsung NVMe SSD are enabled. Here is the picture:
  2. During the tests the power connector has to be plugged in and loading.

#59 RE: How to boost the AHCI performance of Intel Chipset systems by Vasudev 09.12.2017 20:10

@Fernando Here are the results as per your requirement:



1. Storenvme Tweaked:



2. Stornvme Default Settings:



3. Stornvme tweaked version with Write through option enabled in anvil


EDIT by Fernando: Inserted pictures resized (they were too big), but can easily been enlarged by clicking onto them

#60 RE: How to boost the AHCI performance of Intel Chipset systems by Fernando 09.12.2017 21:42

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@Vasudev:
Thanks for having done the tests I had asked for.
As you can see, all your previously measured very bad WRITE scores are blown away, but not by your registry tweak, but by the changed "Write-caching Policy" settings.
The differences between your 3 test results are minimal (probably within the fault tolerance) and definitely not noticeable by the user.
My conclusion: Your test results verify, that the registry tweak has no noticeable positive impact on the performance of the SSD.

Anyway it was a good idea to start this discussion and to do the related tests. Thanks again for your input!

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