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    CF-52 Mk2 and DPC latency

    Discussion in 'Panasonic' started by denrosten, Sep 9, 2012.

  1. denrosten

    denrosten Notebook Evangelist

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    I am trying to set up my CF-52 MK2 for music production, but i have DPC spikes.
    They are not huge, but i would like to stay in the green.
    I tried with two different drives, a 180 Gb intel ssd with Win7 32 bit on it, and a Seagate 320 Gb with Win7 64 bit on it:
    Results are the same
    I also disabled wifi, modem and lan card without any difference.

    Btw, the Win7 64 bit version is completely tuned for audio production, but the spikes stay.

    Any idea´s ?
    dpc latency.jpg
     

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    denrosten, Sep 9, 2012
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  2. onirakkiss

    onirakkiss Notebook Deity

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    Do u have the professional or the standard cf-52? If u have the standard, it would be mostly the shared graphic memory. If u have the professional, I would check the audio driver (WDM).
     
    onirakkiss, Sep 9, 2012
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  3. denrosten

    denrosten Notebook Evangelist

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    I have the standard machine, could be the memory :eek:
    It is not the audio device, i disabled it in device manager to try.
    As i said, it is not yet a huge problem, but it will be if i stress the cpu with 24 channels of streaming audio (with a focusrite firewire audio card on a TI firewire card) so far i tested 6 channels with no dropouts, but i have a recording to do on Wednesday with the full 24 channels.
     
    denrosten, Sep 9, 2012
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  4. denrosten

    denrosten Notebook Evangelist

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    Update!
    I can get the spikes in the green area with both cpu settings (lowest and highest) on 100%
    But the spikes are still there (not yellow anymore)
    According to LatencyMon ndis.sys is the culprit.

    latency mon.jpg
     
    denrosten, Sep 9, 2012
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  5. denrosten

    denrosten Notebook Evangelist

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    Update 1

    Spikes are gone with installing the latest drivers for the Intel 5100 wifi card :)
    Note that it did not worked by disabling the card, but after the new update it worked.
     
    denrosten, Sep 10, 2012
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