The High Precision Event Timer (HPET) is a hardware timer available in modern x86-compatible personal computers. Compared to older types of timers available in the x86 architecture, HPET allows more efficient processing of highly timing-sensitive applications, such as multimedia playback and OS task switching. … See more An HPET chip consists of a 64-bit up-counter (main counter) counting at a frequency of at least 10 MHz, and a set of (at least three, up to 256) comparators. These comparators are 32- or 64-bit-wide. The HPET is … See more The HPET can produce periodic interrupts at a much higher resolution than the RTC and is often used to synchronize multimedia streams, … See more Operating systems designed before HPET existed cannot use HPET, so they use other timer facilities. Newer operating systems tend to be able to use either. Some hardware has … See more HPET is meant to supplement and replace the 8254 programmable interval timer and the RTC's periodic interrupt function. Compared to these … See more HPET is a continuously running timer that counts upward, not a one-shot device that counts down to zero, causes one interrupt and then stops. … See more WebOct 11, 2024 · When you ask how to obtain the system time with a better resolution than 10 ms you'll probably get an answer like: use performance counters and synchronize the …
Micro adjusting timer resolution experiment - Overclock.net
WebJul 15, 2024 · On a side note, I think the MM timers are legacy, and replaced by high precision event timers (HPET). I read the Intel specification on these babies, and they … WebJun 7, 2024 · Having HPET - disabled in bios will give you a lower timer resolution, although this will also cause major syncing issues. Including bad latency, mouse movement and … bsr \u0026 associates llp address
Difference between timer resolution, LAPIC, TSC and QPC?
WebFeb 11, 2024 · Even windows itself will start becoming slow as hell, that is because there is a bug with the later Intel systems that makes accessing HPET timer incredibly slow. Some … WebMar 26, 2012 · HPET: A High Precision Event Timer (HPET) chip consists of a 64-bit up-counter (main counter) counting at least at 10 MHz and a set of ... The latter is the result … WebApr 25, 2024 · HPET can often be disabled in the BIOS. [T]his can improve performance by 5-8%. The reasons at the time were unclear as to why, but it was a minor part in the big story of the Zen launch so it was ... exclude rest day based on shift setting