DPC/ISR latency are extreme high -> stuttering, cracks/pops

MrMistake86

New member
Joined
Jan 19, 2022
Posts
3
Location
Italy (VA)
Hi to all good person who can help me.

I'm having extremely high latency issues like others here on the forum that pop up to the famous problems when playing audio or video tracks.

Doing a test with a software (LatencyMon) I found that the main suspects that generate the above problems are:
1) USBPORT.SYS regarding the ISR routine execution time with values even higher than 5200 microseconds
2) storport.sys regarding the DPC routine execution time with values even higher than 105000 microseconds (one tenth of a second)

In the link below the specifications of my system:

http://speccy.piriform.com/results/3vhzWlc5OhacS5Jwod3pFqU

The main system it is 12/14 years old but has been gradually updated with new components (replacement of the old motherboard), new video card and new ram, as well as various configurations of HD in RAID and not.

other useful information on request :)

Below the links for trace.etl.zip

trace.zip

I can't have the SysnativeFileCollectionApp.zip ... The code run an infinity loop and show off the string "Waiting for SystemInfo"
 
Hi to all good person who can help me.

I'm having extremely high latency issues like others here on the forum that pop up to the famous problems when playing audio or video tracks.

Doing a test with a software (LatencyMon) I found that the main suspects that generate the above problems are:
1) USBPORT.SYS regarding the ISR routine execution time with values even higher than 5200 microseconds
2) storport.sys regarding the DPC routine execution time with values even higher than 105000 microseconds (one tenth of a second)

In the link below the specifications of my system:

http://speccy.piriform.com/results/3vhzWlc5OhacS5Jwod3pFqU

The main system it is 12/14 years old but has been gradually updated with new components (replacement of the old motherboard), new video card and new ram, as well as various configurations of HD in RAID and not.

other useful information on request :)

Below the links for trace.etl.zip

trace.zip

I can't have the SysnativeFileCollectionApp.zip ... The code run an infinity loop and show off the string "Waiting for SystemInfo"
I add the link for download the SysnativeFileCollectionApp zip folder

SysnativeFileCollectionApp.zip
 

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