Download dpc latency checker

Prev 1 2 Next Page 1 of 2 Recommended Posts Is there anyway to lower the DPC latency while running AIDA64? I get periodic spikes in DPC latency while running AIDA64 to monitor temps on my G19. Sometimes my audio playback will skip because of this; any help would be much appreciated Quote Please let us know more about your system configuration:1) Motherboard model2) CPU type3) Video card (or cards) model4) Number of internal or external hard disk drives or SSD5) Any special sensor devices connected6) Windows variant, kernel type (32-bit or 64-bit)Thanks,Fiery Quote post a screenshot of latencymon. there are no instances of dpc spiking caused by the aida driver in my system. Quote Author Posted December 29, 2010 1) Gigabyte EX58-UD52) i7 9303) GTX 4804) 2x Intel SSDs in RAID0, 3x1TB Caviar Green in RAID0 (ICH10R)5) No sensor devices 6) Win7 Pro x64I've attached a picture of the dpc latency, it spikes fairly regularly while leaving AIDA64 running. Quote Latency Monitor, that screenshot is useless it doesn't indicate which driver the DPC spike is from. Quote i believe i got also some latency issues, last day i was playback some music and got sound stutter regularly. I'm not sure aid64 was launched or not but it may be. Next time I'll check with latency mon to be sure. Quote In case the latency spikes are approx. 20 seconds away from each other -- as it seems --, then I suppose it's caused by the SMART detection layer of AIDA64, which is used to measure HDD/SSD temperature. AIDA64 now uses a special driver call to pass through the Intel Rapid Storage RAID drivers, in order to reach the RAID member drives. I guess Intel drivers will need some more iterations to mature Quote Author Posted December 30, 2010 Thanks for all the replies. LatencyMon reports everything as ok but closing it and running DPC latency checker will show periodic spikes. May just be the Intel RST drivers as Fiery stated, I recently moved to the new v10 that was released on 12/15. Thanks again. Quote in my testing, DPC Latency checker can actually cause dpc spikes under recent versions of windows. Quote Is there a difference between Latency Monitor and DPC Latency Checker? Just curious. I use DPC Latency Checker ever since you guys mentioned it here, I didn't know about it. No drop-outs for me on Windows 7 Pro 64. Quote latency monitor actually displays the driver at fault, and has extended DPC information including a DPC amount counter.Excessive DPC activity is just as problematic as high dpc spikes. the driver used is also more recently updated then dpc latency checker. Quote Thanks for the info about the

Hello there people, I recently build a new gaming PC and I now experience DPC Latency issues. The problem only occurs when programs/tools like CPU-Z and Speccy is running.I switched from a Asus Sabertooth Z97 Mark 2 to a Asus Maximus VII Ranger, and I don't remember having this issue on the Sabertooth board. So could it be hardware related? or maybe some kind of BIOS setting? Drivers?Anyway, here is how it looks without CPU-Z or Speccy running:This is how it looks with CPU-Z or Speccy running: Things I've tried:- LatencyMon, which however, doesn't detect a problem it seems. - BIOS Upgrade (To 2304 first then 2101)- Uninstall LAN and sound drivers- Tried different chipset drivers- Update Nvidia drivers- Disable HPET in BIOS- Tried different anti-virus software- Tried with and without IRSTMy build:OS: Windows 8.1CPU: i5 4690kMB: Asus Maximus VII Ranger (BIOS version 2101)GPU: MSI GTX 970RAM Crucial Ballistix Sport 8GBSSD: Samsung 850 Evo 250GBHDD: WD Black 1TBPSU: Cooler Master V550S (550W 80Plus Gold)I have really no idea what causes this problem. MSI Afterburner doesn't cause the same problem.. Thanks in advance EDIT: It seems to be normal readings from DPC Latency Checker since the program/tool isn't optimized for Windows 8. LatencyMon is however optimized for Windows 8 and it shows no latency problems. So problem solved I guess.

Hi all,I have insane DPC latency on my new AM5 rig (X670-E Taichi & 7800X3D) which is causing audio crackling every few seconds. I feel like I've tried everything and it's driving me insane. Things I've tried:Multiple Windows installsRemoved peripheralsMultiple driver versionsDifferent GPULatencyMon says it has something to do with ACPI.sys or Wdf01000.sys Anyone with similar issues? Mostly seems to happen when watching video's on YouTube or during meeting (Teams, Webex)_________________________________________________________________________________________________________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. 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 0:14:19 (h:mm:ss) on all processors._________________________________________________________________________________________________________SYSTEM INFORMATION_________________________________________________________________________________________________________Computer name: ALEX-DESKTOPOS version: Windows 11, 10.0, version 2009, build: 22621 (x64)Hardware: X670E Taichi, ASRockBIOS: 1.28CPU: AuthenticAMD AMD Ryzen 7 7800X3D 8-Core ProcessorLogical processors: 16Processor groups: 1Processor group size: 16RAM: 31864 MB total_________________________________________________________________________________________________________CPU SPEED_________________________________________________________________________________________________________Reported CPU speed (WMI): 4201 MHzReported CPU speed (registry): 420 MHzNote: 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): 9060,20Average measured interrupt to process latency (µs): 19,347410Highest measured interrupt to DPC latency (µs): 9056,30Average measured interrupt to DPC latency (µs): 15,035645_________________________________________________________________________________________________________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): 343,070Driver

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 1:23:58 (h:mm:ss) on all processors._________________________________________________________________________________________________________SYSTEM INFORMATION_________________________________________________________________________________________________________Computer name: MSIOS version: Windows 11, 10.0, version 2009, build: 22631 (x64)Hardware: Raider GE67HX 12UHS, Micro-Star International Co., Ltd.BIOS: E1545IMS.10DCPU: GenuineIntel 12th Gen Intel(R) Core(TM) i9-12900HXLogical processors: 24Processor groups: 1Processor group size: 24RAM: 65305 MB total_________________________________________________________________________________________________________CPU SPEED_________________________________________________________________________________________________________Reported CPU speed (WMI): 230 MHzReported CPU speed (registry): 2496 MHzNote: 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): 6784.0Average measured interrupt to process latency (µs): 9.668441Highest measured interrupt to DPC latency (µs): 6776.0Average measured interrupt to DPC latency (µs): 4.935749_________________________________________________________________________________________________________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): 107.321715Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationHighest reported total ISR routine time (%): 0.000323Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationTotal time spent in ISRs (%) 0.000323ISR count (execution time ISR count (execution time 250-500 µs): 0ISR count (execution time 500-1000 µs): 0ISR count (execution time 1000-2000 µs): 0ISR count (execution time 2000-4000 µs): 0ISR 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): 6193.172676Driver with highest DPC routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft CorporationHighest reported total DPC routine time (%): 0.144039Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft CorporationTotal time spent in DPCs (%) 0.247932DPC count (execution time DPC count (execution time 250-500 µs): 0DPC count (execution time 500-10000 µs): 11039DPC count (execution time 1000-2000 µs): 396DPC count (execution time 2000-4000 µs): 88DPC count (execution time >=4000 µs): 106________________________________________________________________________________________________________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.NOTE: some processes were hit by hard pagefaults. If these were programs producing