Latenzprobleme Latencymon Bericht

Hallo Miteinander,

seit kurzem habe ich recht fiese Latenzprobleme und verzweifel langsam an der Ursachen Suche, bzw. wie diese behoben werden.

Anbei meine Systemzusammenstellung…

Prozessor: AMD FX 8350
Mainboard: Gigabyte 78LMT-USB3 rev. 6.0
Arbeitsspeicher: 16 GB DDR3 Ram
Betriebssystem: Windows 7 Professional (Alle Updates inkl.)
DAW: Cubase 9 Pro
Interface: Steinberg UR 22 (derzeit 256 Samples, früher reichten 512)
DAW-Controller: Steinberg CC121

Und hier mal der Latencymon Bericht.
Vielleicht hat ja der ein oder andere soetwas schon durch und möchte sein Wissen teilen.

Bilder des Berichts im Anhang!

FG Mysanity


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. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. 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 0:01:32 (h:mm:ss) on all processors.



Computer name: RUDI-PC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: GA-78LMT-USB3 6.0, Gigabyte Technology Co., Ltd.
CPU: AuthenticAMD AMD FX™-8350 Eight-Core Processor
Logical processors: 8
Processor groups: 1
RAM: 15613 MB total



Reported CPU speed: 40 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.



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): 3841,962432
Average measured interrupt to process latency (µs): 3,557876

Highest measured interrupt to DPC latency (µs): 278,009808
Average measured interrupt to DPC latency (µs): 1,770314



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): 2663,325250
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%): 0,040439
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0,113712

ISR count (execution time <250 µs): 248162
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): 21
ISR count (execution time >=4000 µs): 0



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): 41267,3660
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 378.49 , NVIDIA Corporation

Highest reported total DPC routine time (%): 0,071708
Driver with highest DPC total execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

Total time spent in DPCs (%) 0,222163

DPC count (execution time <250 µs): 514894
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 139
DPC count (execution time 1000-1999 µs): 0
DPC count (execution time 2000-3999 µs): 76
DPC count (execution time >=4000 µs): 0



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.

NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.

Process with highest pagefault count: vssvc.exe

Total number of hard pagefaults 900
Hard pagefault count of hardest hit process: 301
Highest hard pagefault resolution time (µs): 2039657,386250
Total time spent in hard pagefaults (%): 3,613618
Number of processes hit: 12



CPU 0 Interrupt cycle time (s): 2,590544
CPU 0 ISR highest execution time (µs): 73,9710
CPU 0 ISR total execution time (s): 0,297623
CPU 0 ISR count: 190463
CPU 0 DPC highest execution time (µs): 41267,3660
CPU 0 DPC total execution time (s): 0,538989
CPU 0 DPC count: 464252

CPU 1 Interrupt cycle time (s): 1,850271
CPU 1 ISR highest execution time (µs): 76,15650
CPU 1 ISR total execution time (s): 0,057629
CPU 1 ISR count: 7070
CPU 1 DPC highest execution time (µs): 2418,698750
CPU 1 DPC total execution time (s): 0,114863
CPU 1 DPC count: 6848

CPU 2 Interrupt cycle time (s): 1,809568
CPU 2 ISR highest execution time (µs): 2439,202250
CPU 2 ISR total execution time (s): 0,062997
CPU 2 ISR count: 6701
CPU 2 DPC highest execution time (µs): 2629,381250
CPU 2 DPC total execution time (s): 0,117636
CPU 2 DPC count: 5286

CPU 3 Interrupt cycle time (s): 0,633754
CPU 3 ISR highest execution time (µs): 2663,325250
CPU 3 ISR total execution time (s): 0,09870
CPU 3 ISR count: 8854
CPU 3 DPC highest execution time (µs): 4990,97950
CPU 3 DPC total execution time (s): 0,179529
CPU 3 DPC count: 8107

CPU 4 Interrupt cycle time (s): 1,852347
CPU 4 ISR highest execution time (µs): 2468,7640
CPU 4 ISR total execution time (s): 0,064501
CPU 4 ISR count: 7491
CPU 4 DPC highest execution time (µs): 2441,830250
CPU 4 DPC total execution time (s): 0,119470
CPU 4 DPC count: 8587

CPU 5 Interrupt cycle time (s): 1,805221
CPU 5 ISR highest execution time (µs): 2435,982250
CPU 5 ISR total execution time (s): 0,064138
CPU 5 ISR count: 7144
CPU 5 DPC highest execution time (µs): 2584,689750
CPU 5 DPC total execution time (s): 0,136129
CPU 5 DPC count: 6719

CPU 6 Interrupt cycle time (s): 1,535703
CPU 6 ISR highest execution time (µs): 96,3160
CPU 6 ISR total execution time (s): 0,061009
CPU 6 ISR count: 7199
CPU 6 DPC highest execution time (µs): 2472,289250
CPU 6 DPC total execution time (s): 0,114808
CPU 6 DPC count: 5311

CPU 7 Interrupt cycle time (s): 2,029097
CPU 7 ISR highest execution time (µs): 2622,546250
CPU 7 ISR total execution time (s): 0,132679
CPU 7 ISR count: 13261
CPU 7 DPC highest execution time (µs): 4989,920
CPU 7 DPC total execution time (s): 0,31830
CPU 7 DPC count: 10003