Another look at HPET High Precision Event Timer

nope.

 

You did not remove it manually and you get "no element found" because Windows does not create "useplatformclock" setting by default. Which means that "useplatformclock" is not forced upon OS and it decides which timer - platform or TSC - is used for QPC/QPF functions on the fly (depending on version of Windows and on present hardware and on settings in firmware).

 

With your mumbo jumbos aside, disabling HPET is not rocket science. It's quite simple on my system. 1) Disable HEPT in BIOS. 2) Disable HPET in Windows 10 device manager. That's it. No need to use command prompt.

 

Heh... with your mumbo jumbo aside, disabling HPET in BIOS is enough.

 

Heh... perhaps for you. But not for me as disabling it in device manager disables Windows driver for HPET.

 

You live in a fantasy world - there are no drivers for that device (it does not require drivers):

 

I just stumbled across Intel specification on HPET:
https://www.intel.com/content/dam/w...ations/software-developers-hpet-spec-1-0a.pdf

And according to that specification HPET can be used to fire a periodic interrupts - I was no aware of that:

 

I knew this and always figured it was why forcing hpet on in bcd made the mouse feel floatier.

 

I surely do. Lol

 

There is no driver binary for that device as its embedded in the NT kernel

you can turn it off all you like, it doesn't prevent the usage of hpet.

 

It does if disabled in BIOS.

 

I do not see second screenshot so I don`t know what are LOLing about...

 

The second screenshot must be a tagging error. I only posted one screenshot.

 

Then what was your point? You can`t prove that device has actual drivers just with screenshot of that tab. Have you tried to click "Driver Details" button?

Spoiler

You can see what device manager shows as driver details for HPET on my second screenshot


And if you was implying driver by the writings "Driver Provider", "Driver Date", ""Driver Version" - these are just fields taken from the header of "machine.inf" file:

Code:

; Copyright (c) Microsoft Corporation.  All rights reserved.
[Version]
Signature="$WINDOWS NT$"
Class=System
ClassGuid={4D36E97D-E325-11CE-BFC1-08002BE10318}
Provider=%MSFT%
PnpLockdown=1
DriverVer = 06/21/2006,10.0.19041.1

 

Hello!
Im new in here and got a question.
Yesterday i installed intelligent standby list cleaner and wanted to use the built in timer resolution.

First of i sat the value to 0.5ms but it ended up beeing like 0.496ms.
So i entered bcdedit /set useplatformclock false in cmd to inactivate hpet.
My timer ended up beeing 0.5ms (as it should)

But now i wanna try compare on/off so i entered bcdedit /deletevalue useplatformclock and restarted the computer but the timer resolution still says 0.5ms and not 0.496ms like it did before i turned hpet of...

so my question is, how do i set the default/standard value of hpet in Windows?
Before i restarted i made a restore point and tryed to roll back windows but it still says 0.5ms in islc.

sorry for my bad english btw, best regards!

 

You are confusing platformtick with platformclock... That's the only command that makes the timer "uneven" (Windows timer) or "even" (internal motherboard timer), as for which is better, pretty much nobody is sure. Useplatformclock needs to be left alone and as stock.

Even timer:

bcdedit /set useplatformtick yes

Uneven timer:

bcdedit /deletevalue useplatformtick

 

now im really confused.
So you mean that i probably entered: bcdedit /set useplatformtick yes?
and thats how i got the timer even (at 0.5ms)?

What about platform clock? Whats the default value of it?

 

msisadrv is service on registry if you disable that on device manager Hpet delete

https://prnt.sc/yu1fkw

 

You are disabling PCI-ISA bridge, look in attachment - there are other devices connected to it. I do not think this is wise move, and I do think people can have problems on some rigs.

 

For me is very good