LabVIEW freezes temporarily, why?

[Thomas_robertson]

Reproducibility is the hard part.  We have an NDA with NI so no worries about IP.

[Kyle97330]

A couple things you can look at or try:

• Do you have any network drives or attached hardware that creates drive letters (USB thumb drives, etc.)?
  • If so, see if disconnecting them helps.  Windows often takes WAY too long to figure out "oh, that drive isn't available" when it's been disconnected for some reason.
• Disable all power saving that you can
  • If your drives or other hardware is turning itself off automatically, Windows could be halting while it powers it back up and reinitializes everything.

[paul_a_cardinale]

My entire computer freezes from time to time.  It's because Windows is the computer equivalent of untreated epilepsy.  You never know when it's going to have a seizure.

[Intaris]

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@paul_a_cardinale wrote:

My entire computer freezes from time to time.  It's because Windows is the computer equivalent of untreated epilepsy.  You never know when it's going to have a seizure.

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Yes, but not what I'm experiencing. What I experience in LabVIEW is orders of magnitude worse than everything I even otherwise see in Windows.

[Yamaeda]

I had a similar behaviour in LV2014 in a virtual machine in a somewhat complicated project. Sometimes LV froze for a few (several) seconds, then all windows reshuffled and then it pretended nothing had happened.

[Thomas_robertson]

There's no network drives and my machine is in high performance mode.  

This only happens with LabVIEW not other applications.  When it starts happening it can usually be resolved by clearing the cache and re-loading everything (though that takes about 40 minutes so it's pretty painful).   I do that roughly once a week to stave off these issues.  I have seen certain vis appear to be more prone to this happening.

[Yamaeda]

Have you tried making an Anti-virus exception on .vi's? That can often cause issues.

[Kyle97330]

Can you try installing ProcMon and see if it shows what LabVIEW (or something else) is doing during the freezing?

https://learn.microsoft.com/en-us/sysinternals/downloads/procmon