synkrotron Posted February 6, 2019 Share Posted February 6, 2019 (edited) I have been trying a few things with my CLEVO laptop today... Getting on for ten hours of faffing around. I tried plugging my OCTA-CAPTURE units into a different USB port but that didn't yield any improvements. I used LatencyMon and a hardware monitor utility a number of times today. And each time, a slightly different result, varying from, "your PC is Crap," to "what are you worrying about." Here's the last LatencyMon stats report:- _________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ Your system appears to be suitable for handling real-time audio and other tasks without dropouts. LatencyMon has been analyzing your system for 0:10:44 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: MUSIC OS version: Windows 10 , 10.0, build: 17134 (x64) Hardware: P15xEMx, CLEVO CPU: GenuineIntel Intel(R) Core(TM) i7-3820QM CPU @ 2.70GHz Logical processors: 8 Processor groups: 1 RAM: 16280 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 2694 MHz 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 DPC LATENCIES _________________________________________________________________________________________________________ The interrupt to DPC latency reflects the measured interval in which a DPC could execute in response to a hardware request from the moment the interrupt service routine started execution. Highest measured interrupt to DPC latency (µs): 911.907944 Average measured interrupt to DPC latency (µs): 14.388774 _________________________________________________________________________________________________________ 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): 201.021901 Driver with highest ISR routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Highest reported total ISR routine time (%): 0.032606 Driver with highest ISR total time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Total time spent in ISRs (%) 0.043807 ISR count (execution time <250 µs): 764019 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): 911.515961 Driver with highest DPC routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Highest reported total DPC routine time (%): 0.940592 Driver with highest DPC total execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation Total time spent in DPCs (%) 2.153383 DPC count (execution time <250 µs): 4228955 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 60047 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. 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: dllhost.exe Total number of hard pagefaults 5 Hard pagefault count of hardest hit process: 2 Number of processes hit: 4 _________________________________________________________________________________________________________ PER CPU DATA _________________________________________________________________________________________________________ CPU 0 Interrupt cycle time (s): 155.056404 CPU 0 ISR highest execution time (µs): 201.021901 CPU 0 ISR total execution time (s): 2.240861 CPU 0 ISR count: 760401 CPU 0 DPC highest execution time (µs): 911.515961 CPU 0 DPC total execution time (s): 110.243173 CPU 0 DPC count: 4025487 _________________________________________________________________________________________________________ CPU 1 Interrupt cycle time (s): 29.352408 CPU 1 ISR highest execution time (µs): 28.566815 CPU 1 ISR total execution time (s): 0.000491 CPU 1 ISR count: 338 CPU 1 DPC highest execution time (µs): 254.365256 CPU 1 DPC total execution time (s): 0.193402 CPU 1 DPC count: 27301 _________________________________________________________________________________________________________ CPU 2 Interrupt cycle time (s): 16.744755 CPU 2 ISR highest execution time (µs): 101.984781 CPU 2 ISR total execution time (s): 0.006978 CPU 2 ISR count: 2044 CPU 2 DPC highest execution time (µs): 257.556793 CPU 2 DPC total execution time (s): 0.192298 CPU 2 DPC count: 85076 _________________________________________________________________________________________________________ CPU 3 Interrupt cycle time (s): 22.718981 CPU 3 ISR highest execution time (µs): 38.102450 CPU 3 ISR total execution time (s): 0.005497 CPU 3 ISR count: 804 CPU 3 DPC highest execution time (µs): 207.529324 CPU 3 DPC total execution time (s): 0.013133 CPU 3 DPC count: 5276 _________________________________________________________________________________________________________ CPU 4 Interrupt cycle time (s): 15.224276 CPU 4 ISR highest execution time (µs): 114.303638 CPU 4 ISR total execution time (s): 0.003161 CPU 4 ISR count: 432 CPU 4 DPC highest execution time (µs): 196.432071 CPU 4 DPC total execution time (s): 0.202355 CPU 4 DPC count: 101838 _________________________________________________________________________________________________________ CPU 5 Interrupt cycle time (s): 21.795608 CPU 5 ISR highest execution time (µs): 0.0 CPU 5 ISR total execution time (s): 0.0 CPU 5 ISR count: 0 CPU 5 DPC highest execution time (µs): 140.878990 CPU 5 DPC total execution time (s): 0.008488 CPU 5 DPC count: 3173 _________________________________________________________________________________________________________ CPU 6 Interrupt cycle time (s): 14.327490 CPU 6 ISR highest execution time (µs): 0.0 CPU 6 ISR total execution time (s): 0.0 CPU 6 ISR count: 0 CPU 6 DPC highest execution time (µs): 187.095768 CPU 6 DPC total execution time (s): 0.083292 CPU 6 DPC count: 37686 _________________________________________________________________________________________________________ CPU 7 Interrupt cycle time (s): 20.502024 CPU 7 ISR highest execution time (µs): 0.0 CPU 7 ISR total execution time (s): 0.0 CPU 7 ISR count: 0 CPU 7 DPC highest execution time (µs): 110.209354 CPU 7 DPC total execution time (s): 0.008919 CPU 7 DPC count: 3165 _________________________________________________________________________________________________________ And here are the screen dumps:- Like I said, extremely boring stuff, and I don't have a clue what it all means. If any one does know what all that means, and you have got this far, please reply below. I'm going back to setting up my project template in CbB now... cheers andy Edited February 6, 2019 by synkrotron 1 Link to comment Share on other sites More sharing options...
paulo Posted February 6, 2019 Share Posted February 6, 2019 The 2019 award for the most honest thread title goes to......... 3 Link to comment Share on other sites More sharing options...
paulo Posted February 6, 2019 Share Posted February 6, 2019 Being serious though, this thread would probably get a better response rate if it were posted in the computers/hardware section. 1 Link to comment Share on other sites More sharing options...
paulo Posted February 6, 2019 Share Posted February 6, 2019 Oh wait................... 1 4 Link to comment Share on other sites More sharing options...
InstrEd Posted February 6, 2019 Share Posted February 6, 2019 I'm hoping the Bakers will add computer/hardware section to the new shiny forum/discussion/hangout place. 1 Link to comment Share on other sites More sharing options...
craigb Posted February 7, 2019 Share Posted February 7, 2019 I prefer his more ambient works... ? 1 1 Link to comment Share on other sites More sharing options...
synkrotron Posted February 7, 2019 Author Share Posted February 7, 2019 7 hours ago, paulo said: computers/hardware section. Yeah, that would be nice Link to comment Share on other sites More sharing options...
Jim Roseberry Posted February 8, 2019 Share Posted February 8, 2019 FWIW, That DPC Latency is unfortunately on the very high side. Working at low-latency isn't going to happen without glitches. Even working at mid latency settings is going to be tough when DPC Latency is upwards of 1000uSec. Peak DPC Latency for a Clevo shell laptop should be ~200uSec. 1 Link to comment Share on other sites More sharing options...
synkrotron Posted February 9, 2019 Author Share Posted February 9, 2019 Hiya @Jim Roseberry Thanks for taking a peek and commenting, much appreciated. I guess that until I update my pc I'm going to have to put up with those glitches. And even then, such is the way with computers, there are no guarantees, is seems. I powered up about half an hour ago. I opened task manager and stopped as many background processes as I could. And then I ran LatencyMon again. Here is the main page after just six minutes of running. And, to be honest, until a massive spike, DPC was running at around the 200uS mark:- And here is the Drivers page:- As far as I could tell there was no real activity spikes showing up in Task Manager. So I'm at a loss. I have to admit that I also use my laptop for occasional gaming, which may attract derision from some I am sure. I use a Logitech keyboard and mouse when in my studio, so tasks are usually running for those, although for the above test I had shut them down. Fortunately, just a hobbyist, so I can put up with those glitches I guess. Thanks again for your time Jim cheers andy Link to comment Share on other sites More sharing options...
craigb Posted February 9, 2019 Share Posted February 9, 2019 Pro-Cakewalk Tip: Save your money up and have Jim create a kick-ass DAW for you Andy! ? 1 Link to comment Share on other sites More sharing options...
synkrotron Posted February 9, 2019 Author Share Posted February 9, 2019 3 hours ago, craigb said: Pro-Cakewalk Tip: Save your money up and have Jim create a kick-ass DAW for you Andy! ? Well, sounds like a great idea, but when I mentioned to SWMBO yesterday that I was spec'ing up a new pooter she weren't happy. So getting a Studio Cat would probably even more out of the question Link to comment Share on other sites More sharing options...
paulo Posted February 9, 2019 Share Posted February 9, 2019 7 minutes ago, synkrotron said: Well, sounds like a great idea, but when I mentioned to SWMBO yesterday that I was spec'ing up a new pooter she weren't happy. So getting a Studio Cat would probably even more out of the question You told her? Rookie error. Forgiveness is always easier to obtain than permission.? 1 1 Link to comment Share on other sites More sharing options...
synkrotron Posted February 9, 2019 Author Share Posted February 9, 2019 45 minutes ago, paulo said: You told her? Rookie error. Forgiveness is always easier to obtain than permission.? Haha! Yeah, I always forget that one Mind you, obtaining forgiveness is still virtually impossible... I am often reminded of my "unreasonable spending habits." So, I should just get this thing and explain that all it means is that we will be in the soup kitchen a couple of months earlier than expected... Link to comment Share on other sites More sharing options...
paulo Posted February 9, 2019 Share Posted February 9, 2019 1 hour ago, synkrotron said: Mind you, obtaining forgiveness is still virtually impossible... I am often reminded of my "unreasonable spending habits." I'm sure there are some quite unnecessary cushions that you can draw her attention to.... 1 Link to comment Share on other sites More sharing options...
synkrotron Posted February 9, 2019 Author Share Posted February 9, 2019 8 minutes ago, paulo said: I'm sure there are some quite unnecessary cushions that you can draw her attention to.... Aye! I'm on dodgy ground there though... I've probably blown about five grand on the modular for starters haha. You can get a lot of cushions for five grand! Link to comment Share on other sites More sharing options...
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