Hpet windows 10: How To Improve Gaming Performance By Disabling HPE…

How To Improve Gaming Performance By Disabling HPE…

If you face FPS drops and stuttering, you can try changing the HPET settings to increase the performance of your PC and get smoother gameplay.

HPET stands for High Precision Event Timer (formerly Multimedia Timer) and has been used in PCs for a long time. It is used to produce periodic interrupts, which can be used to synchronize multimedia streams, in turn, providing smoother playback. It also reduces the need for other timestamp calculations. Performance of PC can also be increase by enabling Win32 Priority Separation which you can read here.

Brief History Of HPET

Many gamers have pointed out on forums that the HPET bug is causing problems in the gaming performance in certain situations.

The reason for this is pretty simple. Earlier when CPUs had less clock speed and games did not use multithreading in an efficient way, the usage of HPET to retrieve incremental timestamp counter took away precious calculation power of the CPUs and significantly hurt gaming performance.

• But now that the games are efficiently using multithreading and the bottleneck of the 3D performance has shifted to the GPU, and the impact of the event timers reduced. However, game developers started using a lot of timestamp queries to measure performance for animations and movements.

The problem has arisen because of a very slow timer interpretation of the HPET on today’s high-performance rigs. The impact of slow HPET depends on actual usage of the timer functions in the game engine and the hardware used.

You can notice the HPET bug causing stutters in gameplay if you run a not graphics heavy game on an overpowered GPU.

Disabling HPET removes the micro-stuttering and screen tearing that may occur during gameplay. It allows unrestricted input-output to occur. This results in a very raw and extremely responsive connection between you and your PC.

• You can sense around 0.1 to 0.15ms delay with HPET on while turning it off can gain you around 3-4 FPS. This may not seem much for day to day use. But with gaming, imagine the FPS drop for every action piling up; this leads to micro-stuttering that is observed during gameplay. 

# Method 1 (Using Device Manager)

You can use the device manager to disable the High Precision Event Timer. I’ll show you how to use device manager settings to disable HPET.

• From search, type Device Manager and press Enter to open settings.
• Locate System devices.
• Right click on High Precision Event Timer and select Disable to stop the HPET service.

https://silicophilic.com/disabling-hpet-settings/

Reddit — Dive into anything

Given the recently growing numbers of suggestions in this subreddit about disabling HPET without any sort of understanding of what it does, or what is it for, I figured I’d link the two best ways to syntethize what actually happens that I’ve seen publicly posted.

First, /u/3kliksphilip, a prominent member on the CSGO community, put some background on it in a very understandable way in a thread about precisely the opposite.

Oh no, not HPET!

When the Ryzen 2000 series first came out, Anandtech published a review with benchmarks worthy of ayymd. It showed the Ryzen 2000 series crushing everything else. And although the product is dank, it was agreed that these results were too dank and that something must have gone wrong with Anandtech’s benchmarks.

It took a few weeks and they eventually came out with this article, which was meant to answer the question once and for all but only made it MORE confusing. If you want to try and find an answer to this whole thing, this article is a good place to start.

In short: I’m not confident that I can test this. HPET can change the benchmark results, but it might just be that it changes how the FPS is counted, rather than how fast the PC is in practice. Can we even trust a PC to benchmark itself any more?!

The whole thing’s a total mess. I did some testing on my own setup, but didn’t find anything interesting enough to make a video about, which I was kind of pleased about because I wasn’t sure how trust-worthy any results I might have found could have been any way. I moved on to other video topics, hoping that I’d never have to revisit HPET ever again.

So yes, I’ve looked into this, but it’s a mess and I don’t like it. When it comes to testing HPET, count me out.

And second, but not any less importantly, /u/AMD_Robert himself explained with insight what actually happens inside a system when HPET gets disabled, helping debunk misinformation on another thread.

You are exactly right. Disabling HPET distorts the system’s understanding of time, which causes the system to miscount the frames in a second. If one second isn’t one second, then FPS isn’t FPS anymore. This data is invalid.

Most games use a function called QueryPerformanceCounter() call it «QPC» for short. It’s a core Win32 API, and the most simple way to access the best timer available in the system. When a game is counting «frames per second,» it’s comparing frames rendered against the result of duration measured from QPC. Boom, that’s FPS. That’s not «backwards»! That’s the simplest, most straightforward way to achieve the intended maths.

HPET is not the only timer on the system. There are many timers, actually, and they work on a fallback basis. If a user disables a higher-resolution timer, the duration of time reported by two calls to QPC may not actually match the real elapsed time («ticks») d/t lower timer precision. If the returned time from QPC is longer: reduced FPS. If the returned time from QPC is shorter: increased FPS.

Without knowing how each game specifically reports FPS, it’s impossible to determine why some games might report higher or lower effect. But the basic principle above shows one of many ways why tinkering with system timers can have deleterious effects on accurate performance reporting.

This isn’t the first time HPET on/off has been flagged. This allegation/discovery/claim (unsure which word to use) has been circulated for both AMD and Intel platforms over the years. It seems to reappear each time a new platform is released, and then dies off as debunking efforts progress.

I thought the community would appreciate the info. And remember- opinions are vain! If you want to disagree, please, bring some numbers or information to the discussion! This is meant to be about measurable performance, not «feel». Everyone will benefit, the more information is thrown into a community discussion!

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 sudo apt-get install -y bochs
Mientras que para el caso de la compilación, deben descargar el paquete tar.gz desde el siguiente enlace.
Hecha la descarga deben descomprimir el paquete:
tar zxvf bochs-2. 6.10.tar.gz 

 CD Bochs-2.6.10 

 ./configure --enable-ne2000 --enable-cdrom