LINUX HPET DRIVER DOWNLOAD

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies. Work around hardware stupidity Archived at Archive. INI file to enforce its use. This section needs expansion with: Sign up or log in Sign up using Google. Post Your Answer Discard By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies.

Uploader:	Arar
Date Added:	14 December 2005
File Size:	21.71 Mb
Operating Systems:	Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads:	98893
Price:	Free* [*Free Regsitration Required]

The following operating systems are known to be able to use HPET: The difficulties linix exacerbated if the comparator value is not synchronized with the timer immediately, but delayed by one or two ticks, as some chipsets do.

The kernel gathers entropy from interrupt timing intervals, using the RDTSC instruction on x86 processors. Is it better to enable HPET or leave it disabled. Performance is not a problem, I would like ilnux good entropy, and cryptographically secure random numbers.

High Precision Event Timer

INI file to enforce its use. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Work around hardware stupidity Archived at Archive.

The comparators can be put into one-shot mode or periodic mode, with at least one comparator supporting periodic mode and all of them supporting one-shot mode. This section needs expansion with: Implementations have been observed in which the period register is off by parts per million or more.

You can help by adding to it. This article needs additional citations for verification. So the HPET is only there to satisfy the system's high speed needs. Post Your Answer Discard By clicking "Post Your Answer", you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policy ilnux, and that your continued use of the website is subject to these policies.

From Wikipedia, the free encyclopedia. Will the computer have better entropy with HPET? So basically you are saying that I should have it enabled because it doesn't do neither good nor bad?

Sign up using Email and Password. Since HPET compares the actual timer value and the programmed target value on equality rather than "greater or equal", interrupts can be missed if the target time has already passed when the comparator value is written into the chip's register. By using this site, you agree to the Terms of Use and Privacy Policy.

Formerly referred to by Intel as a Multimedia Timer[1] the term HPET was selected to avoid confusion with the multimedia timers as a software feature introduced in the MultiMedia Extensions to Windows 3.

Unsourced material may be challenged and removed.

cryptography - HPET effects on CSPRNG for Linux OS - Information Security Stack Exchange

Email Required, but never shown. While and RTC can be put hper an HPET-like one-shot mode, the set-up process is so slow that their one-shot mode is not used in practice for tasks requiring precise scheduling.

Compared to these older timer circuits, the HPET has higher frequency and wider bit counters although they can be driven in bit mode.

Views Read Edit View history.

ShieldSquare reCAPTCHA Page

In one-shot mode the comparator fires an interrupt once when the main counter reaches the value stored in the comparator's register, while in the periodic mode the interrupts are generated at specified intervals. Besides mentioning the race condition discussed above, a VMware document also lists some other drawbacks: Sign up or oinux in Sign up using Google.

This page was last edited on 24 Septemberat Sign up using Facebook. Comparators can be driven by the operating system, e. I have and older non-embedded AMD processor. This causes an interrupt at every millisecond even if the application needs to do actual work ypet frequently.