Jump to content
Sign in to follow this  
Virtual-Chris

Undocking Windows - Strange FPS Impact and Vsync Behaviour

Recommended Posts

Posted (edited)

I haven't played the Sim since Dec.  Recently I upgraded my CPU (9700K>5800x) and my motherboard, as well as increased RAM (32GB>64GB).  I run on a 4K main display with two small 1080p monitors for avionics and ATC.  I'm starting with a new install of Windows and the Sim (re-installed from scratch yesterday with the hot fix version).  I briefly tried the latest Nvidia drivers but started getting CTDs during brief testing and rolled back to 457.51 drivers from December which seem stable.

I've found two things that DO NOT match behaviour from Dec. related to undocking Windows.

First, is that undocking windows has a dramatic effect on FPS.  For example, the mere prospect of undocking the ATC window results in about a 20FPS reduction...

Frame rate with no window undocked...

51079190228_cd00db761e_k.jpgDocked by Virtual-Chris (Junk Photos), on Flickr

Frame rate after undocking window... (Note GPU utilization drops to 72% and I lose 20FPS)

51079884241_96819c6a54_k.jpgUndocked Vsync Off by Virtual-Chris (Junk Photos), on Flickr

Second, When Vsync is on (60Hz) the frame rate is limited to 30FPS once you undock a window.  With no windows undocked, the FPS will remain around 57FPS with vsync on or off.

51079884411_e776517b23_k.jpgUndocked Vsync On by Virtual-Chris (Junk Photos), on Flickr

Third, Possibly related to these issues, is that back in December, undocking a Window with Afterburner OSD on, would result in the undocked window also getting an overlay, and the reported FPS being doubled.  This is no longer happening. 

Can anyone else confirm these observations?

Similarly, I'd love to hear from anyone that doesn't suffer a FPS penalty from undocking a window, as I'm almost certain I DIDN'T suffer a FPS loss back in December.  I'd like to know if it's possibly something in my setup or something recent in the sim.

 

Edited by Virtual-Chris
  • Like 1

Share this post


Link to post
Share on other sites
Posted (edited)

Semi-related, I have an issue, that if I have the VFR map docked (it doesn't have to be open just not in a separate window), it causes any videos I'm watching in my browser (youtube, netflix etc) to start buffering or lag badly, if I undock the map, the buffering/lag stops.

It's very weird. It's been happening since launch for me.

 

I also get the FPS drop you mentioned..

Edited by Tuskin38

Share this post


Link to post
Share on other sites

Night and day difference. 42 vs. 29 FPS !

 

mcPtkoV.png

0SSpFi2.png

 


AMD Ryzen5 3600 cpu, 2060 SUPER gpu, 600 Watt Gold Thermaltake psu, 2K 32" Sceptre curved monitor, 16 GB RAM. Entire system including monitor under $1400 iBuyPower (IBP brand had best user reviews at BestBuy).

Share this post


Link to post
Share on other sites
Posted (edited)

This of course means I cannot undock and drag the NAVLOG to another monitor window without destroying framerates. And yes was this way since day 1 launch of MSFS.

And ruins all bush trips for me, because cannot drag away the NAVLOG. You can minimize and maximize it up and down , but can't drag it off to another monitor screen.

 

Edited by Fielder

AMD Ryzen5 3600 cpu, 2060 SUPER gpu, 600 Watt Gold Thermaltake psu, 2K 32" Sceptre curved monitor, 16 GB RAM. Entire system including monitor under $1400 iBuyPower (IBP brand had best user reviews at BestBuy).

Share this post


Link to post
Share on other sites

I'm surprise this issue has not received more attention. It's perhaps the biggest single frame killer in the game and I have to imagine that a lot of people are using a 2nd monitor for pop-out windows.

Does anyone know if this is on Asobo's bug list at all?

  • Like 1

Share this post


Link to post
Share on other sites

I'ts been like this since I started using MSFS. 

Undocking causes significant drop in FPS. 


R9 5900X | RTX 3090 | 64 GB 3600 | 3440x1440 G-Sync | Logitech Pro Throttles Rudder Yoke Panels | Thrustmaster T.16000M FCS | TrackIR 5 | Oculus Rift S
Experience with Flight Simulator since early 1990s

Share this post


Link to post
Share on other sites
Posted (edited)

Yep, nothing like release date  frames anymore.

Edited by Aristoteles

 

 

Iñigo Bildarratz

Share this post


Link to post
Share on other sites

Nothing has changed in this respect since the introduction of FSX way back then. This is just another example of ESP code carried over.  

Apparently they could not fix it then and the same appears to apply now.  I stayed with FS2004 (6 monitors and very decent frame rates) until the introduction of P3Dv4 and just prior to that XPlane 11 and only after I gave up the vision of a surround cockpit like I had in FS2004.

I wish you luck guys. 

Tony


Tony Chilcott.

 

My System. Motherboard. ASRock Taichi X570 CPU Ryzen 9 3900x (not yet overclocked). RAM 32gb Corsair Vengeance (2x16) 3200mhz. 1 x Gigabyte Aorus GTX1080ti Extreme and a 1200watt PSU.

1 x 1tb SSD 3 x 240BG SSD and 4 x 2TB HDD

OS Win 10 Pro 64bit. Simulators ... FS2004/P3Dv4.5/Xplane.DCS/Aeroflyfs2...MSFS to come for sure.

Share this post


Link to post
Share on other sites

Wow. Sad. I actually get nearly 60FPS in 4K now if I don’t use pop-out windows, but I built my whole home cockpit around having two small screens for Avionics so my main display could just be the view out the window. 

I’m getting close to just packing it in on this thing. It’s just not a serious sim for serious simmers.  Best to just spawn at an airport and have a look around with the drone. FFS. 

Share this post


Link to post
Share on other sites

I can confirm this behavior.
With undocked utility windows (ATC, Cameras, etc.) on a second monitor, I get a frame rate between 22 and 30 frames at most. With these windows docked on the main screen between 47 to 50 frames.

Hopefully this will still be fixed.

 

  • Like 1

Share this post


Link to post
Share on other sites

I confirm, same here.

So tired to be alpha tester working for MS-Asobo. And without been payed 😂

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.


    53%
    $13,405.00 of $25,000.00 Donate Now
×
×
  • Create New...