77west

I managed to OOM v4!

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During testing setting the TEXTURE_SIZE_EXP=10 flag, with a PMDG 747 over ORBX New Zealand, I got OOM on loadout.

Now this is not a VAS OOM, but literally, it hit a RAM limit. Not sure if VRAM or system RAM, I have 16GB system RAM and 8GB VRAM, I saw P3D using just under 12GB system RAM, and 7.4GB VRAM, just before P3D gave me the OOM message.

Now I was just testing to see how far I could push it, but would appreciate from LM if I upped my system RAM to 32GB, if P3D would actually scale well and use additional RAM or not.

Removing the TEXTURE_SIZE_EXP=10 flag, I see about 6GB system RAM and 4GB VRAM used, in the same situation.

Interesting. 

(Before anyone goes off at me, I am testing, not criticising or in any way suggesting or implying anything about P3Dv4 other than it is awesome!)

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Well done Wes! BTW I already have 32GB of RAM so I should be fine.:mellow:

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Why would it hit a RAM limit, when it could use a pagefile? Did you try increasing your page file size?

Could you also post the exact message?

YOU did not hit the OOM/VAS limit. I can assure you that. 

 

I do not know how the VRAM works and its limitations... so I cannot comment on that... 

I am also glad you are pushing it to the limit to see its perimeter! :)

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6 minutes ago, Manny said:

Why would it hit a RAM limit, when it could use a pagefile? Did you try increasing your page file size?

I was gonna ask the same.

Dirk.

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I forgot about pagefile duh...! I usually run no pagefile as in the past nothing used all my RAM. Will try with pagefile and see. 

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7 minutes ago, 77west said:

I forgot about pagefile duh...! I usually run no pagefile as in the past nothing used all my RAM. Will try with pagefile and see. 

That's the answer to why you hit the RAM limit.

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Once it's using the pagefile you'll be getting about 2 fps

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1 minute ago, Slayer said:

Once it's using the pagefile you'll be getting about 2 fps

The consensus is already that 32GB RAM is the way to go at very high settings in P3Dv4

Dirk.

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Just now, Dirk98 said:

The consensus is already that 32GB RAM is the way to go at very high settings in P3Dv4

Dirk.

Already there , XP11 pushed me there last winter :P

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11 minutes ago, Slayer said:

Once it's using the pagefile you'll be getting about 2 fps

I dont plan on that for normal simming. I kinda did this to see if upgrading to 32gb is worth it given i am looking at getting a new rig with the new i9 cpu family etc. Might wait till then so i dont waste cash on more ddr3 ram

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32GB is worth it. It's usually a nightmare to find matching RAM a few years later short of replacing all sticks. In XP 11 with HD mesh I OOM'd my PC a few times. I suspect with P3D once we start loading addons with no restriction or VAS budget to worry about 16GB will quickly become too little on this platform as well.

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after reading all of this 64GB RAM sounds like a plan for my upcoming build ...... 

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39 minutes ago, Dirk98 said:

The consensus is already that 32GB RAM is the way to go at very high settings in P3Dv4

Dirk.

The consensus a few months ago was that 16gigs would be more than enough for any sim. based on experience of how things like that usually turn out, I immediately purchased 32gigs for my new computer! :ha:

If people start saying 32gigs is the sweet spot, I'll have to start pricing how to get to 64gigs........

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I never bothered with more in the past because obviously p3d cant use it, i may temporarily borrow some to get 32gb then put 64gb in new build in a few months. Being in IT has its perks lol

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