More info should be forthcoming. All I can say at this point.
Thanks a lot Jeff.
More info should be forthcoming. All I can say at this point.
Uh, that happens for me a lot in Windows 7.
There are problems when I play 1080p files with FLAC audio, since the GPU does most of the work and my cpu stays at 10% while i play it, the high DPC latency becomes an issue and I get audio stuttering and dropped or delayed frames, pc games that have low cpu usage have the same problem.
Could you kindly try to run Latencymon and intel burn test at the same time I would like to know if this happens only to me
bcdedit /set disabledynamictick yes
Would you mind trying something?
Enter this command in an elevated command prompt, reboot, and see if it helps:
Code:bcdedit /set disabledynamictick yes
What it will do is stop Windows from coalescing CPU clock ticks when idle, a feature added in Windows 8 for power savings.
You're not alone. I don't have the RTM version to test on, but that's what was happening in the Preview version.
Would you mind trying something?
Enter this command in an elevated command prompt, reboot, and see if it helps:
Code:bcdedit /set disabledynamictick yes
What it will do is stop Windows from coalescing CPU clock ticks when idle, a feature added in Windows 8 for power savings.
I just registered to say it didn't work for me I run cmd.exe with administrator rights and copy-pasted your command and rebooted. Still the same 1000ms of latency...Enter this command in an elevated command prompt, reboot, and see if it helps:
Code:bcdedit /set disabledynamictick yes
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.
From Ryun's post above:Hi, I've tried the cmd line in Windows 8 Final release and it still doesn't work. The problem seems to be caused by my Wireless adapter on a hp 6720s , if i disable the wireless i don't get spikes anymore but it's still yellow in the DPC Latency. It's annoying because i hear pops and cracks .. any other command that could work?
Ryun said:The DPC latency utility runs on Windows 8 but does not show correct values.
"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"
IE don't worry about it. In fact from something I read Cakewalk (who make a DAW called Sonar) claimed improvements in core scheduling, latency, availability etc. "
I'm glad you're getting the info out there but unfortunately I think there's almost zero chance this gets addressed in Win8. MS has demonstrated pretty definitely that their priorities with Win8 are 1. battery life and 2. lowest common denominator consumers.
Can someone post a quick explanation of why DPC is important?
windows 7 is going to hold on longer then xp did, in the business world. win8 is for us dumb consumers, simply put.
Not entirely, WinME could conceivably work fine on a desktop.Win8 = WinME
Just migrated my home network (5 computers) from Windows XP Pro to Windows 8 Pro. Happy so far, and I do like the new interface. WDDM 1.2 was the deciding factor, however.windows 7 is going to hold on longer then xp did, in the business world. win8 is for us dumb consumers, simply put.
Never want to deploy it in an office setting. Ill probably quit my job when we are forced.
Anyway, I agree with you that Windows 8 does not perform efficiently in terms of handling audio. I am doing Professional Sound mixing and I have to double the buffer compared to W7 to avoid audio drop-outs.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.