What is HPET support and do I want that on?

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urinemachine
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2009/12/29 21:27:14 (permalink)
Just flashed bios and its new to me, do I want it and if so, 32 bit or 64 bit?

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    Bkatt
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    Re:What is HPET support and do I want that on? 2009/12/29 21:35:06 (permalink)
    the bios is 32 bit if that is what your asking...

    the only 64 bit bios i have seen are custom made for higer end super computers and servers....
     
    EDIT: i skiped over the title :P
     
    its a High Precision Event Timer.
     
    and your going to want to set it to the same OS bit you are using. so if your using windows 7 64Bit than you want to run it in  64Bit mode.
     
    this feature does not work with some older OS's
    post edited by burning_kittins - 2009/12/29 21:41:26

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    #2
    urinemachine
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    Re:What is HPET support and do I want that on? 2009/12/29 22:00:59 (permalink)
    What does it do?  Anything worthwhile?

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    Bkatt
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    Re:What is HPET support and do I want that on? 2009/12/29 22:06:12 (permalink)
    i am not 100% sure. its supose to make thinks faster...

    i will jest copy paste some info for you.
    HTEP replaces the old RTC

    The HPET can produce periodic interrupts at a much higher resolution than the RTC and is often used to synchronize multimedia streams, providing smooth playback and reducing the need to use other timestamp calculations such as an x86 CPU's RDTSC instruction.


    and


    While 8254 and RTC can, similarly to HPET, be put in 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.[3] Instead, 8254 and RTC are typically used in periodic mode with very small time interval. For example, if an application needs to perform several short (some milliseconds, perhaps) waits, it is better to have a periodic timer running constantly with 1 ms period because of the high setup cost of an 8254 or RTC one-shot timer. This causes an interrupt on every millisecond even if the application needs to do actual work less frequently. With HPET, the extra interrupts can be avoided, because the set-up cost of a HPET one-shot timer is considerably smaller.


    wiki xD
    http://en.wikipedia.org/wiki/High_Precision_Event_Timer

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    vardenkastav
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    Re:What is HPET support and do I want that on? 2009/12/30 04:21:25 (permalink)
    burning_kittins

    i am not 100% sure. its supose to make thinks faster...

    i will jest copy paste some info for you.
    HTEP replaces the old RTC

    The HPET can produce periodic interrupts at a much higher resolution than the RTC and is often used to synchronize multimedia streams, providing smooth playback and reducing the need to use other timestamp calculations such as an x86 CPU's RDTSC instruction.


    and


    While 8254 and RTC can, similarly to HPET, be put in 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.[3] Instead, 8254 and RTC are typically used in periodic mode with very small time interval. For example, if an application needs to perform several short (some milliseconds, perhaps) waits, it is better to have a periodic timer running constantly with 1 ms period because of the high setup cost of an 8254 or RTC one-shot timer. This causes an interrupt on every millisecond even if the application needs to do actual work less frequently. With HPET, the extra interrupts can be avoided, because the set-up cost of a HPET one-shot timer is considerably smaller.


    wiki xD
    http://en.wikipedia.org/wiki/High_Precision_Event_Timer


    not faster... it just adds better resolution to the clock, more precision. and most likely unless you specifically use it with some application is useless to you
    #5
    urinemachine
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    Re:What is HPET support and do I want that on? 2009/12/30 17:39:20 (permalink)
    so leave it off?

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    bostonbaab
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    Re:What is HPET support and do I want that on? 2009/12/30 17:40:58 (permalink)

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    Bkatt
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    Re:What is HPET support and do I want that on? 2009/12/30 17:48:00 (permalink)
    bostonbaab

    http://en.wikipedia.org/wiki/High_Precision_Event_Timer


    i posted that like 4 post ago. lol
     
    and i would jest turn it on and see if you notice any difference. its a new feature and is supose to be better than the current timer.

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    sims36
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    Re:What is HPET support and do I want that on? 2009/12/30 17:50:33 (permalink)
    i had hpet on my 790 ftw and i always had it enabled with no problems

    i also run it on my classified

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    AuDioFreaK39
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    Re:What is HPET support and do I want that on? 2009/12/30 22:02:52 (permalink)
    I'm having plenty of problems with it. Whenever I play music or video for longer than 15 minutes, my entire system will freeze up. I'm running Windows 7 x64 with HPET enabled on 64-bit mode. Disabling it has relieved my system of constant freeze-ups. I'll speak with EVGA about this later.

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    vardenkastav
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    Re:What is HPET support and do I want that on? 2009/12/30 22:37:27 (permalink)
    urinemachine

    so leave it off?


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    IMHO doesn't matter if its off or on, its not going to make any difference for like 99.99% users.
    #11
    Retsnom
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    Re:What is HPET support and do I want that on? 2013/05/11 08:50:14 (permalink)
    The HPET timer has direct effects on the UDK engine if you overclock your system using softFSB (software Front Side Bus Overclocking) With the HPET off you actually get a soft speed boost in game as the timer differs from the game server.
     
    #12
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