I disabled the card and the dropouts stopped! One or more DPC routines that belong to a driver running in your system appear to be executing for too long. It may not display this or other websites correctly. Highest measured interrupt to DPC latency (µs): 751,676873 Excessive dpc latency is often caused by a poorly written driver, but it is not usually the audio driver that is the culprit. CPU 5 ISR highest execution time (µs):                0,0 WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. In its simplest form, it is the part of your Windows system that handles driver efficiency.  PER CPU DATA _________________________________________________________________________________________________________ Is POP figures gonna destroy your airflow? I had before make the choice to go to AMD for graphic card due to latency with nvidia, and well i have to say it was better for latencies. _________________________________________________________________________________________________________ Sign up for a new account in our community. goes from "fast/3D" clocks to "power savng/idle" clocks. Average measured interrupt to DPC latency (µs): 1.092482. Only 0.00229% of these were up to 2ms. CPU 5 DPC total execution time (s):                   0,027855 We believe we understand the root cause and will provide a fix through a future driver. _________________________________________________________________________________________________________ CPU 6 DPC highest execution time (µs):                44,000998 Hyped og I have been getting some dpc latency spikes up to about 1000us from my gtx1070 gpu, which seems to be causing audio dropouts at low buffer sizes. CPU 4 DPC highest execution time (µs):                69,698603 There are some instructions on the sycon site on how to attempt to track down a bad driver, but it doesn't always work. Posted in Cooling, By Note: reported execution times may be calculated based on a fixed reported CPU speed. SYSTEM INFORMATION CPU 1 ISR count:                                      658 JavaScript is disabled. you can also try the "studio" version of the nvidia drivers.  REPORTED HARD PAGEFAULTS Highest ISR routine execution time (µs):              204,912425 CPU 6 Interrupt cycle time (s):                       1,277273 According to this GeForce.com forum thread, NVIDIA is aware of the GeForce 10 DPC latency and stuttering problems and will be addressed in an upcoming driver. CPU 3 ISR highest execution time (µs):                0,0 I've read that NVidia GPUs, integrated and dedicated, have caused DPC latency issues. frozensun Mr Sparkle If there is a driver that is taking longer than normal to process, it may prevent other drivers from being processed in time. ISR count (execution time 2000-3999 µs):              0 IIRC, Pascal had some issues with latency a couple of months into release, but it was addressed. Although previously I had run 388.13, it's been so far well behaved even with the latest driver (installed this weekend to play Far Cry 5 ). Some people have found that they get large DPC latency spikes when their card/chip. Posted in Windows, Linus Media Group In fact, I do not recommend installing newer nVidia drivers because, more often than not, the older ones gave better DPC latency results like the driver I was using from April 2017 (381.89 WHQL). CPU 2 ISR count:                                      0 The reason for these DPC spikes is (at least partially) due to the GPU changing power states and throttling when more power isn't needed. _________________________________________________________________________________________________________ I read a lot of threads about it but nothing i tried helped me fix it. CPU 1 DPC count:                                      7366 ... NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB) Graphics Card #2: NVIDIA Quadro … PS: The DPC Latency issue does not impact everyone. Thank you. Share Reply Quote _________________________________________________________________________________________________________ I have a problem with DPC latency caused by nvlddmkm.sys (Nvidia drivers). Started 33 minutes ago Average measured interrupt to DPC latency (µs):       0,558119. CPU 7 ISR highest execution time (µs):                0,0 _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ Driver with highest ISR routine execution time:       dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation, Highest reported total ISR routine time (%):          0,064772 My DPC latency increased when I switched to an nVidia card, but that had absolutely no impact on the experience. Posted in Graphics Cards, By CPU 7 ISR total execution time (s):                   0,0 Each new generation of Thunderbolt controllers or docks I figured would fix the issue. Powered by Invision Community. An alarm clock that syncs with my alarms on my phone. Low DPC latency Nvidia drivers? LatencyMon keeps spotting spikes with the nvlddmkm.sys - Nvidea driver. It is suggested that you run a utility which reports your actual CPU frequency and temperature. DPC count (execution time 1000-1999 µs):              18 Greater DPC Latency on windows 10 1909 when clean installed with ISO from MediaCreationTool. I remember having spikes of up to 500-600 microseconds dpc latency on the early win10 drivers from nvidia, which I noticed as microstutter during gaming. No need to submit further survey feedbacks on this issue. One thing I do which may or may not matter: I don't install any of the extraneous stuff (3D … I've used DPC Latency Checker to measure the systems latency and found it is most likely caused by the Nvidia drivers. CONCLUSION CPU 6 ISR count:                                      0 CPU 6 ISR highest execution time (µs):                0,0 Nvidia has addressed this in the past and claims it was fixed. Started 15 minutes ago I have to run most sessions at 510 buffer size, even though I should expect to run some at 128 or 256. Try going into nvidia's control panel and change the power mode from 'optimal' to 'max performance'. Posted in CPUs, Motherboards, and Memory, By On my PC the DPC Latency values seen with the NVidia drivers installed is like the way your DPC Latency values are seen without the NVidia drivers installed. Babbink Why high refreshrate monitors look better even without Freesync/G-sync in one image.Stutters, framedrops, "lag". My DPC latency is consistently solid. Check for BIOS updates. _________________________________________________________________________________________________________ With “Ultra-Low Latency” mode, frames are submitted into the render queue just before the GPU needs them. This works with all GPUs. CPU 7 DPC count:                                      10820 _________________________________________________________________________________________________________ DPC stands for Deferred Procedure Call. Your CPUs may be throttled back due to variable speed settings and thermal issues. Started 46 minutes ago CPU SPEED 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. Processor groups:                                     1 ISR count (execution time 1000-1999 µs):              0 Setup: AMD …  REPORTED ISRs Highest measured interrupt to DPC latency (µs): 16269.279194. Since it happens after the PC has been running for several days suggests one possibility could be a memory leak in a running program. Total time spent in hard pagefaults (%):              0,0 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. Average measured interrupt to process latency (µs):   1,607855, Highest measured interrupt to DPC latency (µs):       996,663057 I read a lot of threads about it but nothing i tried helped me fix it. Your system appears to be having trouble handling real-time audio and other tasks. CPU 1 DPC total execution time (s):                   0,036279 So i finally go back to nvidia when i had to change my video card. I reinstalled and checked everything again (clean 1909 -> test, clean 1903 -> test, clean 1903 to 1909 -> test). LatencyMon has been analyzing your system for  0:07:50  (h:mm:ss) on all processors. Posted in Power Supplies, By Never tried, but they seems to be more suitable for Video working. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results. DPC Latency Explained. CPU 4 DPC total execution time (s):                   0,082874 CPU 3 ISR count:                                      0 _________________________________________________________________________________________________________ Reported CPU speed:                                   4008 MHz You can hear pops and cracks in the sound, while gaming it gets a lot more and every activity with sound is like not doable anymore. CPU 5 ISR count:                                      0 Gpu works fine but until driver installs screen goes black and no signal. Posted in General Discussion, By And a list of guides I've posted. CPU 0 DPC total execution time (s):                   3,344266 Gihi Why high refreshrate monitors look better even without Freesync/G-sync in one image. Really hope some of you guys have more ideas. Lukke _________________________________________________________________________________________________________ I haven't done as much reading CPU 4 DPC count:                                      27451 NVIDIA Release 368.95 Hotfix Driver for DPC Latency Turns out the Pascal-based GPUs suffered from DPC latency issues, and there's been an ongoing TRENDING: The Samsung Odyssey G9 … As soon as I enable the graphics card driver again, the DPC goes back to 350-400us, and it's a stutter fest when I watch videos or play games. Hard pagefault count of hardest hit process:          0 ISR count (execution time 500-999 µs):                0 How to provide detailed information with your "bottleneck" question, as well as a few solutions. OS version:                                           Windows 10 , 10.0, build: 15063 (x64) Driver with highest DPC total execution time:         nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 385.41 , NVIDIA Corporation, Total time spent in DPCs (%)                          0,100834, DPC count (execution time <250 µs):                   2271663 - reinstalling every driver multiple times (older versions too), Without the Nvidia driver there is near no/normal latency. Maybe take your PC into a computer shop or hire a private tech to come out and diagnose what is going on. 2. Hey guys. Highest DPC routine execution time (µs):              5329,373004 Posted in CPUs, Motherboards, and Memory, By _________________________________________________________________________________________________________ Driver with highest ISR total time:                   dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation, Total time spent in ISRs (%)                          0,082512, ISR count (execution time <250 µs):                   376627 Started 8 minutes ago Highest reported DPC routine execution time (micro secs) – 10872. But recently i have dealt with a new install on a PC with an Nvidia graphic card. It was taking an insane 18ms execution time. For the XPS 9560 the issue was because of Dell only using 2 PCI lines limiting the thunderbolt bandwidth to 20gbps. _________________________________________________________________________________________________________ RAM:                                                  16322 MB total, _________________________________________________________________________________________________________ Nvidia pops up aswell, but not nearly as high as ACPI driver. _________________________________________________________________________________________________________ Tested on both latest drivers. I checked my system with DPC Latency checker which indicated that there are some drivers that can potentially cause dropouts. Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 432.00 , NVIDIA Corporation Total time spent in DPCs (%) 0.055018 DPC count (execution time <250 µs): 25014 Linus Media Group is not associated with these services. CPU 7 DPC highest execution time (µs):                55,986527 3. No problem with dual screen anymore for a sacrifice of a little more DPC latencies. CPU 2 ISR total execution time (s):                   0,0 No problem, but check if the PSU has the power and connectors for the GPU. Though I prefer using ULMB instead of g-sync which probably exacerbates microstutter. Asus Maximus Hero VIIIAsus Geforce GTX 980, You need to be a member in order to leave a comment. CPU 2 ISR highest execution time (µs):                0,0 I am having some issues with sound stutters, game stutters, and video stutters. You must log in or register to reply here. I dont edit audio, but I am after tweaking my system. NE0T0N Also, how is this affecting your actual usage, other than some utility reporting an issue? CPU 7 Interrupt cycle time (s):                       1,149992 I let it run in the background while I continued playing Arma 3 and it confirmed my suspicion. I have tried Latency mon, wich gives me ACPI.SYS - ACPI Driver for NT, that goes all the way up to red. I try to figure out and i startet DPC LATENCY CHECKER and this is what i see this: Sometimes i get peaks over 2000 and then i have the sound issues. Maybe I should look into a new card then. NecroFlex What is the bad temperature for cpu and GPU and what temperature has to be in both cpu and GPU to give maximum performance. Process with highest pagefault count:                 none, Total number of hard pagefaults                       0 Hi all! LatencyMon keeps spotting spikes with the nvlddmkm.sys - Nvidea driver. MEASURED INTERRUPT TO USER PROCESS LATENCIES CPU 6 ISR total execution time (s):                   0,0 I had run the Latency mon program just to see what it showed because of discussions on the Sonar recording forum. ISR count (execution time 250-500 µs):                0 NVSlimmer did a big difference in my system, you should look into it, Some of the add-ons on this site are powered by. CPU 2 DPC count:                                      99337 By _________________________________________________________________________________________________________ Page 1 of 3 1 2 3 Next > CPU 0 DPC highest execution time (µs):                5329,373004 There is no problem after updating 1903 to 1909 through windows update. _________________________________________________________________________________________________________. I have a blog! CPU 1 ISR highest execution time (µs):                44,179641 Started 43 minutes ago _________________________________________________________________________________________________________ Stutters, framedrops, "lag". I have a problem with DPC latency caused by nvlddmkm.sys (Nvidia drivers). CPU 0 Interrupt cycle time (s):                       9,034225 Started 22 minutes ago _________________________________________________________________________________________________________ PPS: Nvidia's Manuel regarding Netflix stuttering issue - "We have root caused this issue and will provide a fix in a future driver." Started 8 minutes ago DPC count (execution time >=4000 µs):                 0. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution. You don't have to update if you are not experiencing the issue. 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. Number of processes hit:                              0, _________________________________________________________________________________________________________ We all know that AMD drivers have from far, less latency than Nvidia drivers, and for that reason we all recommand an AMD graphic card for audio working. CPU 1 Interrupt cycle time (s):                       1,117498 CPU 1 ISR total execution time (s):                   0,001748 Highest measured interrupt to process latency (µs): 16272.856039. Only a subset of users do. 1. DPC count (execution time 500-999 µs):                34 If I disable the GTX 1080 in the device manager, the DPC latency goes back to 20-25us. CPU 3 Interrupt cycle time (s):                       1,158504 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. CPU 5 DPC highest execution time (µs):                117,625998 DPC count (execution time 250-500 µs):                0 Posted in General Discussion, By CPU 5 DPC count:                                      7734 _lucalink I can watch a video on youtube or Netflix and the DPC doesn't change and I don't experience stutter or crackling sound. High dpc latency with Nvidia 388.71 Discussion in ' Videocards - NVIDIA GeForce Drivers Section ' started by bloodfx , Jan 25, 2018 . I have noticed that different nvidia driver versions seem to have varying degrees of dpc latency. _________________________________________________________________________________________________________ CPU 0 ISR highest execution time (µs):                204,912425 REPORTED DPCs If this is a trend throughout time, I don't think this is anything to lose sleep over. Yeah I can imagine. CPU 4 ISR total execution time (s):                   0,0 Cracking down on Nvidia driver DPC latency Performance relation to DPC & latency in general forced clock resolution S.D.I double check General Win Tweak reg THE SCRIPTS!!!!1!! Started 37 minutes ago CPU 5 ISR total execution time (s):                   0,0 Hardware:                                             ASUSTeK COMPUTER INC., MAXIMUS VIII HERO Logical processors:                                   8 This is “just in time frame scheduling,” as NVIDIA calls it. CPU 3 DPC highest execution time (µs):                58,004990 It all happends randomly and sometimes just 1 - 2 times pr day, and the next day it happends 10 times. Perhaps it will reduce audio latency as well. _________________________________________________________________________________________________________ CPU 0 ISR total execution time (s):                   3,100812 CPU 5 Interrupt cycle time (s):                       1,195590 CPU 6 DPC count:                                      28950 CPU 7 DPC total execution time (s):                   0,044122 Most of the DPC executions were done in under 250 uS. _________________________________________________________________________________________________________ And when i updated to the latest driver i saw an... We show you how to create a restore point on Windows 10, as well as how to perform a system restore from boot or while logged in. CPU 0 DPC count:                                      2082244 CPU 4 ISR count:                                      0 CPU 4 Interrupt cycle time (s):                       1,256590 406751; As we can see the cause of the DPC latency spike problems after the 1903 update, were the following – DirectX Graphics Kernel (dxgkrnl.sys) NVIDIA Windows Kernel Mode Driver (nvlddmkm.sys) Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal. jaslion Windows 10: How to System Restore and Create a Restore Point, https://pcpartpicker.com/products/video-card/#c=416,395,392&sort=price&N=2,3, https://forums.guru3d.com/threads/w...terrupts-msi-tool.378044/page-71#post-5826955. CPU 2 DPC highest execution time (µs):                106,886228 Highest hard pagefault resolution time (µs):          0,0 CPU 2 DPC total execution time (s):                   0,132702 NVIDIA. CPU:                                                  GenuineIntel Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz CPU 7 ISR count:                                      0 Pascal Undervolting topic, get more out of your card with less power! I installed LatencyMon (Dpc Latency checker doesn't work with Windows 10). You are likely to experience buffer underruns appearing as drop outs, clicks or pops. But on the other hand, i had big lags with dual screens, and it came from the drivers from AMD and was never be to fix the issue. Posted in CPUs, Motherboards, and Memory, By It's easy! Computer name:                                        DESKTOP-C94EK0Q CPU 4 ISR highest execution time (µs):                0,0 Started 35 minutes ago Driver with highest DPC routine execution time:       nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 385.41 , NVIDIA Corporation, Highest reported total DPC routine time (%):          0,030497