Should HPET be on or off?
Should HPET be on or off?
Disabling HPET removes the micro-stuttering and screen tearing that may occur during gameplay. It allows unrestricted input-output to occur. You can sense around 0.1 to 0.15ms delay with HPET on while turning it off can gain you around 3-4 FPS.
How do I turn on HPET timer?
From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Advanced Options > High Precision Event Timer (HPET) ACPI Support. Enabled—The HPET is available to an operating system that supports it using the industry standard ACPI name space.
What is HPET used for?
The High Precision Event Timer (HPET) is a hardware timer used in personal computers. It was developed jointly by Intel and Microsoft and has been incorporated in PC chipsets since 2005.
How do I enable HPET in Windows 7?
Try changing HPET settings to improve your PC’s performance
- Tap on the Windows-key, enter cmd, right-click cmd.exe in the results listing and select to run the command prompt with administrative privileges.
- To enable HPET as the only timer run the command bcdedit /set useplatformclock true.
What is Dev HPET?
HPET, or High Precision Event Timer, is a piece of hardware designed by Intel and Microsoft to replace older PIT and RTC. It consists of (usually 64-bit) main counter (which counts up), as well as from 3 to 32 32 or 64 bit wide comparators.
How do I disable Useplatformclock?
Tap on the Windows-key, enter cmd, right-click cmd.exe in the results listing and select to run the command prompt with administrative privileges. To enable HPET as the only timer run the command bcdedit /set useplatformclock true. To disable HPET in Windows run the command bcdedit /deletevalue useplatformclock.
What is Windows High Precision Event Timer?
The High Precision Event Timer (HPET) is a hardware timer used in personal computers. Formerly referred to by Intel as a Multimedia Timer, the term HPET was selected to avoid confusion with the software multimedia timers introduced in the MultiMedia Extensions to Windows 3.0.
Should you disable synthetic timers?
Thus, all synthetic timers are disabled by default….Synthetic Timer Configuration Register.
| Bits | Description | Attributes |
|---|---|---|
| 2 | Lazy – Set if timer is lazy | Read / Write |
| 1 | Periodic – Set if timer is periodic | Read / Write |
| 0 | Enabled – set if timer is enabled | Read / Write |
What is the high precision event timer ( HPET )?
The High Precision Event Timer ( HPET) is a hardware timer used in personal computers. It was developed jointly by Intel and Microsoft and has been incorporated in PC chipsets since 2005. Formerly referred to by Intel as a Multimedia Timer, the term HPET was selected to avoid confusion with the software multimedia timers introduced in the
Why is the HPET called a Multimedia Timer?
Formerly referred to by Intel as a Multimedia Timer, the term HPET was selected to avoid confusion with the software multimedia timers introduced in the MultiMedia Extensions to Windows 3.0.
Why do I need a HPET one shot timer?
With HPET, the extra interrupts can be avoided, because the set-up cost of a HPET one-shot timer is considerably smaller. Operating systems designed before HPET existed cannot use HPET, so work only on hardware that has other timer facilities.
Is the HPET a programmable interval timer or periodic interrupt?
(February 2014) HPET is meant to supplement and replace the 8254 programmable interval timer and the RTC’s periodic interrupt function. Compared to these older timer circuits, the HPET has higher frequency and wider 64-bit counters (although they can be driven in 32-bit mode).
