Windows 8's greatest weakness: DPC latency

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shadowmajestic

Junior Member
Mar 24, 2014
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Its not 1000+, to get the 'correct' value do -1000 :)
It checks every 1000, means Windows8 will wait a 1000 before executing it. If its 1030, the real result is 30.
There is no more set interval in Windows 8 for it to check using those 'old' techniques of a constantly awakened CPU.

At least with DPC Latency Checker
 

Raduque

Lifer
Aug 22, 2004
13,140
138
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My older Dell laptop (studio 17) with Windows 7 x64 looks like your Windows 8 chart.
 

Chiefcrowe

Diamond Member
Sep 15, 2008
5,056
199
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If you hate itunes (and i'm not a fan either), what will you use instead if you get a mac?



FYI guys, DPC Latency Checker is not compatible with Windows 8. No need to lost time on your 1000 value, we all have the same.

Source: DPC Latency Checker Official website
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.

Also, if I start using my computer for a few hours, then even my poor MediaMonkey start to give me audio droup-outs, followed by a simple 720p movie with MPC-HC... And I am running a i7 2720qm, 8GB with dedicated Video card.
I ran a lot of tests using Windows Performance Toolkit, I judged all my drivers or W8 services after a while but none of them are guilty.
nb: From my experience, I think Latency Mon also do not show correct values. I tried my best but it is not reliable software. Use Windows ADK.

I also thought it could be hardware problem, so I went to do the same stuff on my PC... It operates better, I have to admit, however if I start doing multiple things at a time, it gives me same "gzzz sound" that I hate and a nice 1sec lag. Last thing to do save the ship, reboot.

Conclusion: I don't like Apple, I hate iTunes, I found their OS ugly, I love W8, I find it fast and clean, but I am going to by a MAC.
 

Fred B

Member
Sep 4, 2013
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Think there is a different behaviour when using xp with ssd the DCP latency becomes real low . My gues is that wxp do not work with ram in the way w7 workes with ram , w7 creates a ramdisk and that is not a bad thing but whe forget that ram is not the fastest memory in the pc , the L1 cache is faster in latency .
 

Conditioned

Member
Jan 3, 2010
58
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Think there is a different behaviour when using xp with ssd the DCP latency becomes real low . My gues is that wxp do not work with ram in the way w7 workes with ram , w7 creates a ramdisk and that is not a bad thing but whe forget that ram is not the fastest memory in the pc , the L1 cache is faster in latency .

Since this is rather high on google I just wanted to let you guys know dpc checker is not working well on windows 8. Check latencymon from resplendence.