Old PC (FX 6100 OC'ed 4.0GHz, GT 740, 8GB RAM) DPC Latency

_________________________________________________________________________________________________________
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 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  0:04:47  (h:mm:ss) on all processors.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name:                                        DESKTOP-PC
OS version:                                           Windows 10 , 10.0, build: 16299 (x64)
Hardware:                                             ASRock, 970 Pro3 R2.0
CPU:                                                  AuthenticAMD AMD FX(tm)-6100 Six-Core Processor
Logical processors:                                   6
Processor groups:                                     1
RAM:                                                  8148 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed:                                   3991 MHz
Measured CPU speed:                                   1 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.

WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.



_________________________________________________________________________________________________________
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):   8316.464887
Average measured interrupt to process latency (µs):   7.621131

Highest measured interrupt to DPC latency (µs):       489.505645
Average measured interrupt to DPC latency (µs):       3.194909


_________________________________________________________________________________________________________
 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):              182.323728
Driver with highest ISR routine execution time:       dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%):          0.088083
Driver with highest ISR total time:                   dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%)                          0.100920

ISR count (execution time <250 µs):                   69860
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):              772.281133
Driver with highest DPC routine execution time:       nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 390.65 , NVIDIA Corporation

Highest reported total DPC routine time (%):          0.053244
Driver with highest DPC total execution time:         nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 390.65 , NVIDIA Corporation

Total time spent in DPCs (%)                          0.183345

DPC count (execution time <250 µs):                   252644
DPC count (execution time 250-500 µs):                0
DPC count (execution time 500-999 µs):                61
DPC count (execution time 1000-1999 µs):              0
DPC count (execution time 2000-3999 µs):              0
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:                 none

Total number of hard pagefaults                       0
Hard pagefault count of hardest hit process:          0
Highest hard pagefault resolution time (µs):          0.0
Total time spent in hard pagefaults (%):              0.0
Number of processes hit:                              0


_________________________________________________________________________________________________________
 PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s):                       5.791161
CPU 0 ISR highest execution time (µs):                182.323728
CPU 0 ISR total execution time (s):                   1.697362
CPU 0 ISR count:                                      58725
CPU 0 DPC highest execution time (µs):                772.281133
CPU 0 DPC total execution time (s):                   2.610709
CPU 0 DPC count:                                      226860
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s):                       1.518943
CPU 1 ISR highest execution time (µs):                77.865948
CPU 1 ISR total execution time (s):                   0.008021
CPU 1 ISR count:                                      2079
CPU 1 DPC highest execution time (µs):                270.220496
CPU 1 DPC total execution time (s):                   0.412440
CPU 1 DPC count:                                      16275
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s):                       0.655872
CPU 2 ISR highest execution time (µs):                15.219995
CPU 2 ISR total execution time (s):                   0.006866
CPU 2 ISR count:                                      1633
CPU 2 DPC highest execution time (µs):                218.937359
CPU 2 DPC total execution time (s):                   0.058872
CPU 2 DPC count:                                      3952
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s):                       0.703063
CPU 3 ISR highest execution time (µs):                13.005763
CPU 3 ISR total execution time (s):                   0.007479
CPU 3 ISR count:                                      1588
CPU 3 DPC highest execution time (µs):                218.877224
CPU 3 DPC total execution time (s):                   0.031605
CPU 3 DPC count:                                      2796
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s):                       0.469284
CPU 4 ISR highest execution time (µs):                13.537459
CPU 4 ISR total execution time (s):                   0.005570
CPU 4 ISR count:                                      1308
CPU 4 DPC highest execution time (µs):                181.195690
CPU 4 DPC total execution time (s):                   0.033861
CPU 4 DPC count:                                      1604
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s):                       0.467757
CPU 5 ISR highest execution time (µs):                13.564270
CPU 5 ISR total execution time (s):                   0.012816
CPU 5 ISR count:                                      4527
CPU 5 DPC highest execution time (µs):                97.628414
CPU 5 DPC total execution time (s):                   0.010216
CPU 5 DPC count:                                      1218
_________________________________________________________________________________________________________