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OOM assistance please

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I am getting OOM failures after about half an hours flying. I have no doubt that is clearly my fault for setting everything at or near maximum (hard right). My question is which sliders are likely to have most effect on GPU and CPU running out of memory? I have started creeping the sliders back towards the left but it is a long slow job to judge which are having the greatest impact. Thanks.

Cheers, Mac
 

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History repeats. Also have OOM issues. Tweaking is necessary again. We have good fps at all maxed but with default planes.I cannot imagine what will happen when we put an strong aircraft.

The only cure? P3D converts to 64bits.

Javier Rollon. Owner of JRollon Planes for Xplane

I've just got my first OOM, having installed the FTX Iceland demo, about 2 minutes after take off from BIRK. I also have most sliders hard right, as I was getting good FPS. I would also be interested in the answer to the OP's question.

 

Steve.

History repeats. Also have OOM issues. Tweaking is necessary again.

 

Yes, it does and it's generally because people do not learn from the past...

 

How about putting all sliders in the middle, instead of slamming everything to the right? Then after a successful flight, you go back and determine what is most important to you and you move that slider to the right one notch. Go fly again and see if you really notice a difference. Repeat as much as you want or just fly and enjoy the view?

 

 


History repeats. Also have OOM issues. Tweaking is necessary again

 

Sorry but turning sliders down to sensible levels that are matched to personal hardware, is not tweaking.

People are getting OOM's with default scenery and aircraft already?  I certainly didn't expect it this soon.  I can only imagine what a PMDG aircraft or FlyTampa scenery will do to it.

There is a scenery editor within Prepar3d 2.0 that also has an option to empty scenery memory cache when you select or deselect certain areas.

 

Simply put, turn off the major scenery that you will not be flying over.  if you are flying from KIAD to KIAH, turn off scenery in other parts of the world.  As much as many do not want to admit it, I honestly do not see much change in memory management versus FSX... which means we are going to be dealing with these issues until it moves to 64 bit.  Sorry folks, but unless the memory management improves, we are stuck with these workarounds.

Phil Long

oh poop, here we go...

Intel i7 10700K | Asus Maximus XII Hero | Asus TUF RTX 3090 | 32GB HyperX Fury 3200 DDR4 | 1TB Samsung M.2 (W11) | 2TB Samsung M.2 (MSFS2020) | Arctic Liquid Freezer II 280mm AIO | 43" Samsung Q90B | 27" Asus Monitor

oh poop, here we go...

 

 

I really hate to admit it... but I received an OOM last night.  Hopefully the experts or LM can make changes for the better.  I for one do not like all of the tweaking involved.

 

For reference I have a 4770K and GTX 780 and was running FTX Global, REX Essential + OD with all sliders to the right when this occured.

Phil Long

  • Commercial Member

Lots of mis-statements in this thread:

 

 

 

People are getting OOM's with default scenery and aircraft already?

 

FTX Iceland demo is not default scenery.

 

 

 

History repeats
 

 

Yes, it does... but the repeat is where people max absolutely everything out thinking that their system is a powerhouse that can do it all and then blame the software for their bad choice.

 

Those are just to things I pointed out... the bottom line is... people make mistakes and then blame the software for their decisions.  The software is a static item with zero intelligence, the user input is the dynamic and it's up to the user to provide intelligent input for the software to react to.  If the user makes a bad choice, it's not the software's fault.

Ed Wilson

Mindstar Aviation
My Playland - I69

  • Moderator

Yes, it does and it's generally because people do not learn from the past...

 

How about putting all sliders in the middle, instead of slamming everything to the right? Then after a successful flight, you go back and determine what is most important to you and you move that slider to the right one notch. Go fly again and see if you really notice a difference. Repeat as much as you want or just fly and enjoy the view?

 

What? Oh no! That's too sensible - I'd much rather run around like a chicken with it's head cut off complaining about the software!!

Shame on you for being so practical.

 

:P

 

Vic

 

RIG#1 - I9 14900K MSI Pro z790 RTX 5070Ti
40" 4K Monitor 3840x2160 

  • Commercial Member

History repeats. Also have OOM issues. Tweaking is necessary again. We have good fps at all maxed but with default planes.I cannot imagine what will happen when we put an strong aircraft.

The only cure? P3D converts to 64bits.

 

Again all the popular games out there are 32 bit programs no matter how amazing graphics they have. You don't need a 64 bit program to get rid of OOM's in most situations. 

 

It's normal that there are issues just after release, however unlike MS with FSX LM seems to be actually committed to fixing those with their platform. 

Just not sure how they are going to fix VAS limitations.

Intel i7 10700K | Asus Maximus XII Hero | Asus TUF RTX 3090 | 32GB HyperX Fury 3200 DDR4 | 1TB Samsung M.2 (W11) | 2TB Samsung M.2 (MSFS2020) | Arctic Liquid Freezer II 280mm AIO | 43" Samsung Q90B | 27" Asus Monitor

  • Commercial Member

I really hate to admit it... but I received an OOM last night.  Hopefully the experts or LM can make changes for the better.  I for one do not like all of the tweaking involved.

 

For reference I have a 4770K and GTX 780 and was running FTX Global, REX Essential + OD with all sliders to the right when this occured.

 

Honestly people.  Maxed out in Prepar3D is way, way, way, way beyond maxed out in FSX.  You just exceeded hardware capabilities and then complained about it!  Seriously??

 

Take a moment, use Google and find out exactly what impact 4096x4096 textures have when doing 3D rendering and how much physical memory is required to support them.  Never mind, I'll do it for you... A single 4096x4096 texture in 32-bit color (4 bytes) is 4096*4096*4 = 67,108,864 bytes.  That's 67 megabytes for one single 4kx4k texture!  Now... let's start loading up all the textures one might need for the FS world... and that's just the textures!!!  We haven't even gotten into the actual rendering area needed for a single screen... lesse, a screen at 1920x1080x4 = 8,294,400 bytes for a single widescreen display... and that doesn't include a back buffer for image flipping.  So you'll need to double that... and if you use triple buffering... well... it just keeps growing and growing...

 

Get a grip people, you're overtaxing the abilities of the graphics hardware and then things are being shoved down into system memory at that point and it doesn't take long to run out of memory!

 

How about some common sense??

Ed Wilson

Mindstar Aviation
My Playland - I69

Honestly people. Maxed out in Prepar3D is way, way, way, way beyond maxed out in FSX. You just exceeded hardware capabilities and then complained about it! Seriously??

 

Ed is very correct. The fact that LM makes it so easy to bump up LOD and TML in sim will result in many of these threads. Those extreme settings will never be realiable and maybe even more so in P3D.

 

I have personally never seen a difference between 2048 and 4096 anyway, and I am happy with  TML=1024 and default LOD. I never get OOM errors, in FSX that is.

Intel i7 10700K | Asus Maximus XII Hero | Asus TUF RTX 3090 | 32GB HyperX Fury 3200 DDR4 | 1TB Samsung M.2 (W11) | 2TB Samsung M.2 (MSFS2020) | Arctic Liquid Freezer II 280mm AIO | 43" Samsung Q90B | 27" Asus Monitor

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