I've been chasing this down for weeks, it is those annoying pauses lasting 1-3 sec sometimes longer.  I initially thought it was the long frame "stutter" that happens when P3D is loading scenery objects but I ruled that out.  This turns out to have nothing to do with P3D setup and is a quirk with Windows Defender.

 

I noticed the pauses always had a significant increase in kernel activity on the CPU activity charts and a burst of activity on the I/O chart signifying SDD activity.  I finally tracked this down to the MsMpEng module, and with the help of Google I found that this is the Windows Defender engine and there were many many links in Google regarding this exact same problem.  Hopefully the fix is simply adding the C:\Program Files\Windows Defender folder to the exclusion list. Evidently, if Defender scans itself there is a burst in CPU activity that causes other running programs to slow down.  In P3D the effect is similar to a long frame.

 

I've only got an hour of testing for this fix but I'm hopeful I've eliminated those annoying pauses.

I will be very interested in your results because I also have these pauses. 

That's why I have it turned off

 

Just run malwarebites once every 2 weeks. Also delete that after you have used it, Just re DL when you need it.

 

DL>Run>Delete, repeat when even you feel the need!

You might want to add an exclusion to the P3D folder so it doesn't scan it. I run both MWB & WDefend but exclude my Sim drive in both. 

You might want to add an exclusion to the P3D folder so it doesn't scan it. I run both MWB & WDefend but exclude my Sim drive in both. 

 

This is already a normal practice, that of course everybody should strictly follow.

Cheers, Ed

I will be very interested in your results because I also have these pauses. 

 

Me too!.

Cheers, Ed

I have Kaspersky already for like 6-7 years on my machine, through both FSX and P3D, excluded all that is FS, and 0 problems... why not resort to a something professional, one of the top A/V on the market? Any reason not to?

I have Kaspersky already for like 6-7 years on my machine, through both FSX and P3D, excluded all that is FS, and 0 problems... why not resort to a something professional, one of the top A/V on the market? Any reason not to?

 

What I believe Dan is suggesting is that you should exclude the Windows Defender folder from your A/V scanning activity, whichever you use (Kapersky, Norton, ESET, Avira, etc.).

Cheers, Ed

Well, I think that only applies if Windows Defender is actually active... which it isn't if you have Kaspersky installed. It disabled Win. Defender through the windows policy.

Just finished a KIAH-PANC trip in N465MC Atlas Pax B744 block time 7+30. No pauses/long frames except as expected when AS Anchorage is loading scenery objects, which is expected.  None of the annoying pauses at random times during the session. Good news.

Just finished a KIAH-PANC trip in N465MC Atlas Pax B744 block time 7+30. No pauses/long frames except as expected when AS Anchorage is loading scenery objects, which is expected.  None of the annoying pauses at random times during the session. Good news.

 

So what did you change, if anything?

 

gb.

So what did you change, if anything?

 

gb.

 

Sometimes it's a good idea to read up!.

Sometimes it's a good idea to read up!.

 

Opps.. sorry about that, brain snap. too many topics.

 

gb.