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Per-file pausing in file transfer traffic RRS feed

  • Question

  • Over the past few days, I've observed an odd behaviour in my Hyper-V environment.

    File share copying (to and from) shows a 30-60 second pause after completing each file transfer.  The file transfers themselves proceed quickly (normal speed), but between each file the transfer stops.

    I originally thought Antivirus scanning might be at fault, but I've disabled it and the problem persists.  Also, this issue occurs for TFTP and HTTP transfers done by PXE and Linux Kickstart, which have no AV involved.

    Can anyone suggest ways to gather information as to why this might be happening?


    Thursday, August 30, 2018 8:56 PM

Answers

  • Well I have done a bunch more testing and the issue is caused by the Trend Micro OSCE XG Antivirus we have installed.

    The work-around is to disable the real-time scanner.

    We had thought that unloading the agent caused the AV to be disabled, but this isn't always the case. You need to configure the real-time scanner to be off for the agent in the management console.

    • Marked as answer by Tony D Gedge Saturday, September 15, 2018 3:17 AM
    Saturday, September 15, 2018 3:17 AM

All replies

  • Hi,

    Maybe you can get some information from resource monitor.

    I suspect that it is a problem with disk utilization.

    Best regards,

    Travis


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    Friday, August 31, 2018 9:27 AM
  • Forgive me for being lazy... but any pointers on what to look for? I don't usually do performance analysis, so it'd take a while for me to get up to speed.

    For example, why do you suggest "disk utilization"?

    Monday, September 3, 2018 10:59 PM
  • Hi,

    Thanks for your reply.

    This is just a guess. As you said, this is a strange phenomenon. I did not find more useful information. 

    Best regards,

    Travis


    Please remember to mark the replies as an answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Tuesday, September 4, 2018 7:32 AM
  • Hi,

    Just checking in to see if the information provided was helpful.

    Please let us know if you would like further assistance.

    Best Regards,

    Travis


    Please remember to mark the replies as an answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Friday, September 7, 2018 9:18 AM
  • Well I have done a bunch more testing and the issue is caused by the Trend Micro OSCE XG Antivirus we have installed.

    The work-around is to disable the real-time scanner.

    We had thought that unloading the agent caused the AV to be disabled, but this isn't always the case. You need to configure the real-time scanner to be off for the agent in the management console.

    • Marked as answer by Tony D Gedge Saturday, September 15, 2018 3:17 AM
    Saturday, September 15, 2018 3:17 AM