Windows 10: Windows Performance Analyzer error Solved

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  1.    29 May 2018 #11

    zinou said: View Post
    This is the big challenge with WPR. the buffers configuration, it suffers for a lack of documentation I think the number of buffers is not related to the WPT version, but to the machine memory size. I've 16 Gb on my machine. I think the lower the memory you have, the lower the number of buffers.
    I have 8GB, which makes sense, to have half the buffers!
      My ComputerSystem Spec

  2.    29 May 2018 #12

    My friend, thank you very much for your precious time and effort, to help me resolving this.

    I'm afraid, we're running out of options here. And I definitely don't want to take advantage of your time.

    Which means that WPT cannot provide what is meant for...a usable trace.
    Maybe i should try my luck with Sysinternals ProcMon.

    Again, thanks a lot!!!
    Last edited by ddelo; 31 May 2018 at 12:31.
      My ComputerSystem Spec

  3.    29 May 2018 #13

    Try using the "SampleGeneralProfileForLargeServers.wprp" instead of generalprofile. it's predefined profile you can find under the toolkit folder:

    wpr -start SampleGeneralProfileForLargeServers.wprp -onoffscenario Boot -onoffresultspath E:\wpr -numiterations 1 -filemode

    It offers more buffer numbers:

    Click image for larger version. 

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      My ComputerSystem Spec

  4.    29 May 2018 #14

    Procmon is a great tool, but it's not handy to use for solving boot performance. I prefer WPT.

    You know that even with lost events you can get clues on what's cause the delay. the analysis will not be so accurate, but I've already solved problems from boot traces with events dropped.

    You can share your boot trace, I will try to take a look and see if we can get something interesting...
      My ComputerSystem Spec

  5.    29 May 2018 #15

    Gimme a couple of min. It runs with sample profile. I'll post back
      My ComputerSystem Spec

  6.    29 May 2018 #16

    @zinou

    We got the sucker!!! You're the best!
    That's the solution....the SampleGeneralProfileForLargeServers.wprp

    Thanks man! I'll zip it (7z) and I'll pm you the link to my OneDrive...
      My ComputerSystem Spec

  7.    29 May 2018 #17

    ddelo said: View Post
    @zinou

    We got the sucker!!! You're the best!
    Thanks man! I'll zip it (7z) and I'll pm you the link to my OneDrive...
    pleased to help
      My ComputerSystem Spec

  8.    30 May 2018 #18

    And to close the issue, after the expert advice of @zinou

    In case someone has the same issue, with lots of dropped events, the solution is to start both the built-in GeneralProfile and the example profile everybody has in the "%programfiles(x86)%\Windows Kits\10\Windows Performance Toolkit" folder called SampleGeneralProfileForLargeServers.wprp.
    This sample profile has 1024 buffers of 1024KB each and can record without any problem and of course without dropped events!

    So the command for starting the recording of the trace should be:
    Code:
    "%programfiles(x86)%\Windows Kits\10\Windows Performance Toolkit\wpr.exe" -start SampleGeneralProfileForLargeServers.wprp -start GeneralProfile -filemode -onoffscenario Boot -onoffresultspath C:\WPR -numiterations 1

    Again a great thanks to our WPR/WPA expert @zinou.
    Last edited by ddelo; 31 May 2018 at 12:35.
      My ComputerSystem Spec


 
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