Hi, my computer will have high DPC latency when the CPU has a higher load. I also have a USB audio device connected but i tried unplugging it and it didnt work. I have also tried using a pci card but still dosent work. I also tried reinstalling and updating my NIC driver and it still doesn't work.
Specs:
Asus P8P67 Pro B3
i5 2500k@4.7ghz
2x4GB G.Skill Ripjaws 1600MHz
Corsair TX 750M
Here is the report from LatencyMon
_________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ Your system seems to have difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. 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 0:00:09 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: CHORONG OS version: Windows 8 , 6.2, build: 9200 (x64) Hardware: ASUSTeK Computer INC., P8P67 PRO CPU: GenuineIntel Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz Logical processors: 4 Processor groups: 1 RAM: 8159 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 3300.0 MHz Measured CPU speed: 3119.0 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 (s): 1002.581080 Average measured interrupt to process latency (s): 1.413173 Highest measured interrupt to DPC latency (s): 43.752378 Average measured interrupt to DPC latency (s): 0.348979 _________________________________________________________________________________________________________ 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 (s) 0.310301 _________________________________________________________________________________________________________ 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 (s): 23.939394 Driver with highest ISR routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Highest reported total ISR routine time (%): 0.028261 Driver with highest ISR total time: SCSIPORT.SYS - SCSI Port Driver, Microsoft Corporation Total time spent in ISRs (%) 0.083933 ISR count (execution time <250 s): 13519 ISR count (execution time 250-500 s): 0 ISR count (execution time 500-999 s): 0 ISR count (execution time 1000-1999 s): 0 ISR count (execution time 2000-3999 s): 0 ISR count (execution time >=4000 s): 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 (s): 110.577576 Driver with highest DPC routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Highest reported total DPC routine time (%): 0.195511 Driver with highest DPC total execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Total time spent in DPCs (%) 0.541093 DPC count (execution time <250 s): 65132 DPC count (execution time 250-500 s): 0 DPC count (execution time 500-999 s): 0 DPC count (execution time 1000-1999 s): 0 DPC count (execution time 2000-3999 s): 0 DPC count (execution time >=4000 s): 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: none Total number of hard pagefaults 0 Hard pagefault count of hardest hit process: 0 Highest hard pagefault resolution time (s): 0.0 Total time spent in hard pagefaults (%): 0.0 Number of processes hit: 0 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 0.264934 CPU 0 ISR highest execution time (s): 23.939394 CPU 0 ISR total execution time (s): 0.031895 CPU 0 ISR count: 13519 CPU 0 DPC highest execution time (s): 110.577576 CPU 0 DPC total execution time (s): 0.194678 CPU 0 DPC count: 64220 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 0.017907 CPU 1 ISR highest execution time (s): 0.0 CPU 1 ISR total execution time (s): 0.0 CPU 1 ISR count: 0 CPU 1 DPC highest execution time (s): 109.158788 CPU 1 DPC total execution time (s): 0.010706 CPU 1 DPC count: 776 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 0.010983 CPU 2 ISR highest execution time (s): 0.0 CPU 2 ISR total execution time (s): 0.0 CPU 2 ISR count: 0 CPU 2 DPC highest execution time (s): 12.914545 CPU 2 DPC total execution time (s): 0.000092 CPU 2 DPC count: 21 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 0.010614 CPU 3 ISR highest execution time (s): 0.0 CPU 3 ISR total execution time (s): 0.0 CPU 3 ISR count: 0 CPU 3 DPC highest execution time (s): 9.529091 CPU 3 DPC total execution time (s): 0.000139 CPU 3 DPC count: 115 _________________________________________________________________________________________________________
Here is the drivers file
https://docs.google.com/file/d/0Byl1C2mmMtxaV0dCVktzMkppbTg/edit?usp=sharing
Thanks.
- Edited by fitfit759 Sunday, September 29, 2013 3:49 AM
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