HPET enable/disable ?

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cliff
cliff
Joined: 15 Feb 12
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23 Feb 2016 4:15:19 UTC
Topic 198459
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    Hi,
    Anyone have any idea if disabling HPET would improve performance in crunching WU?
    I've seen posts reporting an improvement in GPU response with HPET disabled in gaming, dunno if it also applies to crunching.

    I'm using a AMD 990FX motherboard and AMD CPU...

    Regards,

    Cliff,

    Been there, Done that, Still no damm T Shirt.

    Gary Roberts
    Gary Roberts
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    HPET enable/disable ?

    23 Feb 2016 5:29:59 UTC
    Message 137427
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      Quote:
      Anyone have any idea if disabling HPET would improve performance in crunching WU?


      Why don't you try it out and come back and tell us what happens? :-).

      Cheers,
      Gary.

      cliff
      cliff
      Joined: 15 Feb 12
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      RE: RE: Anyone have any

      23 Feb 2016 15:02:57 UTC
      Message 137428 in response to message 137427
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        Quote:
        Quote:
        Anyone have any idea if disabling HPET would improve performance in crunching WU?

        Why don't you try it out and come back and tell us what happens? :-).

        Lemme see, intermittent lockups, chasing a gremlin around from cpu to gpu to memory to mbo bios?

        Seemed sensible to me to see if anyone had any usefull info on the topic,
        before trying it out.

        Regards,

        Cliff,

        Been there, Done that, Still no damm T Shirt.

        Keith Myers
        Keith Myers
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        In my experience, disabling

        23 Feb 2016 18:54:44 UTC
        Message 137429
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          In my experience, disabling HPET in the BIOS was a distinct disadvantage with regard to crunching. It led to wildly different completion estimations compared to an identical machine with HPET enabled for similar tasks. It also bumped up the actual completion times by about 10%. Also saw a lot more sluggishness in keyboard and mouse response and verified that the DPC latency had increased considerably compared to my control computer with HPET enabled. If you don't game, then definitely run HPET enabled for crunching.

           

          cliff
          cliff
          Joined: 15 Feb 12
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          Hi Keith, RE: In my

          24 Feb 2016 3:26:46 UTC
          Message 137430 in response to message 137429
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            Hi Keith,

            Quote:
            In my experience, disabling HPET in the BIOS was a distinct disadvantage with regard to crunching. It led to wildly different completion estimations compared to an identical machine with HPET enabled for similar tasks. It also bumped up the actual completion times by about 10%. Also saw a lot more sluggishness in keyboard and mouse response and verified that the DPC latency had increased considerably compared to my control computer with HPET enabled. If you don't game, then definitely run HPET enabled for crunching.

            Ok, advice taken. HPET stays ON:-)

            Regards,

            Cliff,

            Been there, Done that, Still no damm T Shirt.

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