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 Post subject: whats your DPC latency?
PostPosted: Thu Dec 16, 2010 3:32 pm 
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Joined: Fri Feb 13, 2009 2:31 pm
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Location: Ontario, California
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Heres a link to the tool, DPC (Deferred Procedure Call) Latency is one of the main causes of input lag. It also causes problems with streaming media.
Tips to reduce DPC Latency:
Disable unused USB controllers, hubs, etc.
Plug USB devices directly into a motherboard port, not an external hub
Disable event logging completely..(gpedit.msc)
Disable superfetch and readyboost completely http://hardforum.com/showthread.php?t=1462842
IF YOUR BIOS HAS THE OPTION, DISABLE HPET! (high precision event timer)
Disable all the performance counters http://download.microsoft.com/download/ ... _setup.exe
Set the clock timer resolution to the highest possinle (.5 milliseconds in win7 64bit) http://www.lucashale.com/timerresolutio ... lution.zip
update device drivers

http://www.thesycon.de/dpclat/dpclat.exe

Here is a link to a program that helps identify the source(s) of dpc latency,
http://www.resplendence.com/download/LatencyMon.exe

My dpc latency averages between 10-15.

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 Post subject: Re: whats your DPC latency?
PostPosted: Fri Dec 17, 2010 4:44 pm 
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Joined: Tue Aug 04, 2009 1:09 am
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Arclite, did you get my PM?

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 Post subject: Re: whats your DPC latency?
PostPosted: Wed Dec 22, 2010 9:45 am 
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Thanks for the links!

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