Usbport.sys causes high DPC over time.

[Dude]

Slappy, are you using Intel RST? Try linking power management in performance tab

 

[fireberd]

I'm out of suggestions or theories.

Jack

 

[Dude]

I'm out of suggestions or theories.

Jack

I agree, it has to be something simple yet not

 

[fireberd]

That usbport.sys may not be the problem, just throwing the user off. Latencymon program showed my recording system PC as having several problems that would cause audio problems, but I was not having any problems. DPC latency checker did not show any problems. I had run the Latency mon program just to see what it showed because of discussions on the Sonar recording forum.

Since it happens after the PC has been running for several days suggests one possibility could be a memory leak in a running program.

If it worked OK at one time and now does not and the user can't find the problem it may be time for a "clean" reinstall.

 

[Faladu]

I think rebooting and not running 5 days straight is your solution.

You expect no leaks over a long up time with a version of Windows desktop OS? muhahahahaha :devil:

 

[Slappy]

Hi guys sorry for my absence, have had problems accessing the site due to dns issues, anyhow i don't think i ever installed intel RST tbh and here's a fun kicker, i'm down from 5 days uptime to around 3 days for the damn dpc, ut seems to get worse and worse and i still can't figure out what the hell is causing it, if i only had some way to see if there's any program that are specificly putting load on certain drivers because that would help alot with diagnostics.

That usbport.sys may not be the problem, just throwing the user off. Latencymon program showed my recording system PC as having several problems that would cause audio problems, but I was not having any problems. DPC latency checker did not show any problems. I had run the Latency mon program just to see what it showed because of discussions on the Sonar recording forum.

Since it happens after the PC has been running for several days suggests one possibility could be a memory leak in a running program.

If it worked OK at one time and now does not and the user can't find the problem it may be time for a "clean" reinstall.

A clean install on a ~4 month old comp does not really seem to be correct... however i do agree with you that there might be a memory leak in a program but how the hell would i get to the bottom of what program it is?

 

[Dude]

Slapy, not sure on tracking memory leaks but here is a start to help

http://www.sevenforums.com/crash-lockup-debug-how/102606-memory-leak-troubleshooting.html

 

[Slappy]

latencymon

Here's my latencymon data, also attatched a txt file for drivers in hope that someone might see something.

_________________________________________________________________________________________________________
CONCLUSION
_________________________________________________________________________________________________________
Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.
LatencyMon has been analyzing your system for 0:01:39 (h:mm:ss) on all processors.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: SLAPPY-DATOR
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: MS-7752, MSI, Z77A-S01 (MS-7752)
CPU: GenuineIntel Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz
Logical processors: 8
Processor groups: 1
RAM: 16333 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3500,0 MHz
Measured CPU speed: 2391,0 MHz (approx.)

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.


_________________________________________________________________________________________________________
MEASURED INTERRUPT TO USER PROCESS LATENCIES
_________________________________________________________________________________________________________
The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.

Highest measured interrupt to process latency (µs): 3170,835105
Average measured interrupt to process latency (µs): 2,893994

Highest measured interrupt to DPC latency (µs): 3167,909440
Average measured interrupt to DPC latency (µs): 1,702220


_________________________________________________________________________________________________________
MEASURED SMI, IPI AND CPU STALLS
_________________________________________________________________________________________________________
The SMI, IPI and CPU stalls value represents the highest measured interval that a CPU did not respond while having its maskable interrupts disabled.

Highest measured SMI or CPU stall (µs) 1,170266


_________________________________________________________________________________________________________
REPORTED ISRs
_________________________________________________________________________________________________________
Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.

Highest ISR routine execution time (µs): 67,5260
Driver with highest ISR routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

Highest reported total ISR routine time (%): 0,028606
Driver with highest ISR total time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

Total time spent in ISRs (%) 0,037984

ISR count (execution time <250 µs): 140767
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 µs): 0
ISR count (execution time >=4000 µs): 0


_________________________________________________________________________________________________________
REPORTED DPCs
_________________________________________________________________________________________________________
DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.

Highest DPC routine execution time (µs): 3869,971143
Driver with highest DPC routine execution time: USBPORT.SYS - USB 1.1 & 2.0 portdrivrutin, Microsoft Corporation

Highest reported total DPC routine time (%): 0,121646
Driver with highest DPC total execution time: USBPORT.SYS - USB 1.1 & 2.0 portdrivrutin, Microsoft Corporation

Total time spent in DPCs (%) 0,214136

DPC count (execution time <250 µs): 635692
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 0
DPC count (execution time 1000-1999 µs): 285
DPC count (execution time 2000-3999 µs): 181
DPC count (execution time >=4000 µs): 0


_________________________________________________________________________________________________________
REPORTED HARD PAGEFAULTS
_________________________________________________________________________________________________________
Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.


Process with highest pagefault count: latmon.exe

Total number of hard pagefaults 17
Hard pagefault count of hardest hit process: 8
Highest hard pagefault resolution time (µs): 332,631429
Total time spent in hard pagefaults (%): 0,000294
Number of processes hit: 4


_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 2,390774
CPU 0 ISR highest execution time (µs): 67,5260
CPU 0 ISR total execution time (s): 0,302152
CPU 0 ISR count: 140767
CPU 0 DPC highest execution time (µs): 3869,971143
CPU 0 DPC total execution time (s): 1,646014
CPU 0 DPC count: 608365
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 0,223695
CPU 1 ISR highest execution time (µs): 0,0
CPU 1 ISR total execution time (s): 0,0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 0,0
CPU 1 DPC total execution time (s): 0,0
CPU 1 DPC count: 0
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 0,249076
CPU 2 ISR highest execution time (µs): 0,0
CPU 2 ISR total execution time (s): 0,0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (µs): 66,476571
CPU 2 DPC total execution time (s): 0,012028
CPU 2 DPC count: 6894
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 0,221521
CPU 3 ISR highest execution time (µs): 0,0
CPU 3 ISR total execution time (s): 0,0
CPU 3 ISR count: 0
CPU 3 DPC highest execution time (µs): 0,0
CPU 3 DPC total execution time (s): 0,0
CPU 3 DPC count: 0
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 0,265636
CPU 4 ISR highest execution time (µs): 0,0
CPU 4 ISR total execution time (s): 0,0
CPU 4 ISR count: 0
CPU 4 DPC highest execution time (µs): 155,395714
CPU 4 DPC total execution time (s): 0,015333
CPU 4 DPC count: 7774
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 0,217682
CPU 5 ISR highest execution time (µs): 0,0
CPU 5 ISR total execution time (s): 0,0
CPU 5 ISR count: 0
CPU 5 DPC highest execution time (µs): 0,0
CPU 5 DPC total execution time (s): 0,0
CPU 5 DPC count: 0
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 0,282349
CPU 6 ISR highest execution time (µs): 0,0
CPU 6 ISR total execution time (s): 0,0
CPU 6 ISR count: 0
CPU 6 DPC highest execution time (µs): 128,414571
CPU 6 DPC total execution time (s): 0,024865
CPU 6 DPC count: 11085
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 0,21860
CPU 7 ISR highest execution time (µs): 0,0
CPU 7 ISR total execution time (s): 0,0
CPU 7 ISR count: 0
CPU 7 DPC highest execution time (µs): 59,3940
CPU 7 DPC total execution time (s): 0,005170
CPU 7 DPC count: 2040
_________________________________________________________________________________________________________

 

[Slappy]

Just here to post a little update, done some more research regarding this problem but nothing has worked so far, the memory leak does not seem to be the problem either seeing as how i have more memory then i can actually use in this setup that i have :/ .

 

[Dude]

Slappy, thanks for updating. I wish I knew the answer, hopefully you will get it.

 

[Slappy]

I'm just gonna pop a quick question, considering that the dpc is increasing over time and never staying stable, is it possible that it's one of microsofts services in services.msc that is causing this? If so does anyone have any idea of what it could be? Reason i'm asking is because i just managed to find out why my battery on my android phone was draining as soon as wifi was on and it was actually caused by a service on my computer that kept sending packets over the router to it and once disabled it sorted my battery drain on my android out to.

 

[fireberd]

I would more think some non-microsoft driver or application is the problem. The computer I'm on, at my Daughter's, has been on since last Sunday without rebooting and its not experiencing any problems. In fact, they let it on 24/7 and it was only rebooted last Sunday as I did some work on it for them, that required a restart.

 

[Slappy]

Is there any way to see if a specific driver is used by a specific program?

 

[fireberd]

Probably is but its beyond me. Would take a software head to figure it out.

 

[Slappy]

Probably is but its beyond me. Would take a software head to figure it out.

Is there any of those active here on sevenforums?

 

[fireberd]

There are on some of the other forum sections. Maybe "Performance and Maintenance" would be a good section to post the problem in.

 

[circatm2001]

Sorry to necro this thread but I have the same problem and can't seem to pinpoint the culprit. Did anyone ever find a solution? I've tried many different solutions to no avail. I thought it was my usb soundcard, so I plugged my headset directly into my motherboard and uninstalled the driver for the usb soundcard. I also uninstalled my Intel Rapid Storage drivers as well as my Marvell SATA controller drivers, opting to use the windows drivers instead. I disabled all power saving features within windows and then went into the bios and disabled speedstep as well as C1E. All my drivers are up to date, including BIOS. I started noticing this issue about a month ago, it definitely gets worse if I leave my computer running for a day or 2. I'm getting random DPC spikes during regular use of the computer. When the latency increases I start to notice frame rate drops and stuttering during gameplay (World of Warcraft). The only USB devices left are my webcam: Logitech c270, mouse: Logitech g500, and keyboard: Ducky DK9008 Shine 2.

Screenshots:
DPC Latency - Imgur

Edit: After posting this I think I figured it out!

It has to be Corsair Link. My H100i CPU cooler has a USB cable that runs to one of the internal USB ports on the motherboard. The software is terrible, it causes tons of problems, crashes all the time, and is constantly polling system hardware for temperature data. I killed the process and the hardware monitor and the DPC spikes disappeared. Unfortunately I think that the corsair link software is necessary to control the pumps and fans on the H100i...

Corsair Link SW issue with DPC latency - The Corsair Support Forums

Problem Solved:
Corsair Link Software Update Beta Version 2.4.4948 - The Corsair Support Forums

Edit:
The USB soundcard drivers were also causing DPC spikes. When I reinstalled the drivers and soundcard I started getting really bad spikes again (up to 30ms). The headset is a Steelseries 7H USB: SteelSeries North America - SteelSeries 7H USB. The combination of the two was really bad, my computer was running unbearably slow.

 

[Slappy]

Sorry to necro this thread but I have the same problem and can't seem to pinpoint the culprit. Did anyone ever find a solution? I've tried many different solutions to no avail. I thought it was my usb soundcard, so I plugged my headset directly into my motherboard and uninstalled the driver for the usb soundcard. I also uninstalled my Intel Rapid Storage drivers as well as my Marvell SATA controller drivers, opting to use the windows drivers instead. I disabled all power saving features within windows and then went into the bios and disabled speedstep as well as C1E. All my drivers are up to date, including BIOS. I started noticing this issue about a month ago, it definitely gets worse if I leave my computer running for a day or 2. I'm getting random DPC spikes during regular use of the computer. When the latency increases I start to notice frame rate drops and stuttering during gameplay (World of Warcraft). The only USB devices left are my webcam: Logitech c270, mouse: Logitech g500, and keyboard: Ducky DK9008 Shine 2.

Screenshots:
DPC Latency - Imgur

Edit: After posting this I think I figured it out!

It has to be Corsair Link. My H100i CPU cooler has a USB cable that runs to one of the internal USB ports on the motherboard. The software is terrible, it causes tons of problems, crashes all the time, and is constantly polling system hardware for temperature data. I killed the process and the hardware monitor and the DPC spikes disappeared. Unfortunately I think that the corsair link software is necessary to control the pumps and fans on the H100i...

Corsair Link SW issue with DPC latency - The Corsair Support Forums

Problem Solved:
Corsair Link Software Update Beta Version 2.4.4948 - The Corsair Support Forums

Yeah i actually managed to sort it out, i had 2 usb controllers for c216 chipset and after i disabled one of them my dpc problem finally went away.

 

[ben561]

Would you be so kind as to describe how to disable your usb controller? thats crazy if you actually figured this out, because I have also been looking all around the web for no solution!

 

[Slappy]

Would you be so kind as to describe how to disable your usb controller? thats crazy if you actually figured this out, because I have also been looking all around the web for no solution!

Wasn't that hard, however i suffer 2 less usb 2.0 ports (not that i really need the 8 that i have but still) just follow this and you should be fine .

Right click My Computer - Manage - Device Manager

In here you will go down to the usb tab, what i did here was basicly right click each one in here, go to properties and after that drivers, in there i pressed more information and found out wich ones contained usbport.sys as a driver, for me it was 2 intel 7 series c216 chipset usb controllers, i disabled one of them and it all went away after that, i've tried updating the chipset drivers over and over but it never helps so i'm just keeping one of them disabled for now.