Windows 8 and 8.1 Forums

is this 1ms+ DPC Latency normal?

  1. #1

    Posts : 40
    Windows 8.1 Pro x64

    is this 1ms+ DPC Latency normal?

    I see lots of people going on about DPC Latency in Windows 8 not going below 1ms (1000us)... I have seen it on a few windows 8 machines ive tested..

    heres Windows 8 installed on my computer :

    heres XP installed :

    what is the problem here?


      My System SpecsSystem Spec

  2. #2

    Posts : 124
    Windows 8 Pro 64-Bit

    DPC Latency Checker

    Windows 8 Compatibility: The DPC latency utility runs on Windows 8 but does not show correct values. The output suggests that the Windows 8 kernel performs badly and introduces a constant latency of one millisecond which is not the case in practice. DPCs in the Windows 8 kernel behave identical to Windows 7. The utility produces incorrect results because the implementation of kernel timers has changed in Windows 8 which causes a side effect with the measuring algorithm used by the utility. Thesycon is working on a new version of the DPC latency utility and will make it available on this site as soon as it is finished.

    DPC Latency Checker for Windows 7, Windows 7 x64, Windows Vista, Windows Vista x64, Windows Server 2003, Windows Server 2003 x64, Windows XP, Windows XP x64, Windows 2000
    Please don't take my response as rude not my intention but, always double check software compatibility, the first thing that came to my mind was probably a incompatibility issue no way this is win8 performing worse than it's predecessor.
      My System SpecsSystem Spec

  3. #3

    Posts : 13
    Windows 8 Pro

    The DPC latency checker wasn't working with windows 8 earlier this month. It said so on the website.
      My System SpecsSystem Spec

  4. #4

    Posts : 40
    Windows 8.1 Pro x64

    many thanks... I suspect you just remove 1ms and you get your which case it looks really good

    thanks again
      My System SpecsSystem Spec

is this 1ms+ DPC Latency normal?
Related Threads
dpc latency high as hell in General Support
so i decided to download 2 dpc latency checkers, one said everything was fine the other was dangerously high i then tried having them open with aida64 and stresstesting everything, my entire pc started lagging and the latencymon didnt go up much but the dpc latency cheker spiked a bit higher, but...
Solved Help analysing DPC latency spikes in Performance & Maintenance
So I am having sound crackling while gaming and so I read I can use DPC latency checker to see if there are problems there and I appear to have a problem, since there a lots of red peaks. How to I go about finding the problem? Just ask if I have to post anything else. System specs are current. ...
Solved DPC Latency issues in Network & Sharing
Recently been getting significant latency issues on my desktop after roughly a day/two of use (hibernating at night). This causes audio stuttering and static. Issue seems to be caused by ndis, and tcpip. Using DPC Latency monitor I noticed it would skyrocket to red whenever the internet got a...
DPC latency spikes from USBPORT.sys in Performance & Maintenance
Hey everyone, I'm yet another victim of DPC spikes caused by USBPORT.sys. I definitely know there are lots of other threads regarding this problem, but so far none of them have helped. I tried most of other tweaks suggested, from power management settings, to disabling stuff in the device...
High latency when WLAN is on in Network & Sharing
Hey folks :) I've run into a strange something, which I can't find any explanation for. Whenever I turn on WLAN in my router, the whole network suffers from an incredible latency. No online game is playable, but the download speed itself is not being touched (i.e. fullspeed) and websites load...
Why is the DPC latency high on Windows 8? in Performance & Maintenance
I cannot recall what it was in Windows 7 exactly, but it was much less than 500us. In Windows 8, it never drops below 1000us. I measured the DPC Latency using the DPC Latency Checker. Any idea why this is? Immature drivers? (Specs in the sig btw) 7761 This is also on the *leaked*...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook