What are the 4GB in Stat Memory?

O_and_N · March 20, 2021, 8:01pm

When you type stat memory you get this window.

I am not sure what those 4gb on the right represent.Ram or Gpu memory that the engine sets as a limit for your game level and you can not surpass it??

O_and_N · March 22, 2021, 7:11pm

Going to bump this just for a random opinion as it does not appear to be on udn.A friend on the forum told me that is probably the maximum ram for a 32 bit executable.

If that is the ram:
The question is, since the editor is in 64bit and my game will be in 64 bit, does that mean it will still be limited to 4gb ram of usage as if it was a 32 bit game? Doesn’t make sense as in theory, the 64 bit of the game should use all of the OS ram(like the editor does) .Do I have to search for those 4GB somewhere in the inis to modify it(no idea where) or this doesn’t matter under 64 bit build>that hopefully will use all the ram it needs and Epic just didn’t bother to update the ‘‘visual representation’’ of the stat memory command under 64 bits?

This is mainly as im using a lot of textures(and although i am optimizing them and playing with their channels for maximum use) the game might end up using more than 4gb of ram per level and don’t want to end with a pikachu face

Coldscooter · March 22, 2021, 10:44pm

@O_and_N How are you building you game for 64 bit? Unless you have the UE3 source.

O_and_N · March 23, 2021, 8:56am

Good morning .Its stock UDK. After a cooked build game level for testing i just copy the win64 folder from the udk Binaries and paste it in to the game installation binaries folder and use the exe that is in the win64 folder.Once launched, the window bar on top does say 64bit so i assume i am using a 64bit game?(going on faith with that haha)
Also in this thread>post 11 i wrote how you can actually cook and package with frontend in 64bit.

https://forums.unrealengine.com/lega…ng-with-64-bit

Coldscooter · March 23, 2021, 7:26pm

Thanks for the info

Neongho · March 24, 2021, 11:04am

Wait wait, are you sayiing you can deliver UDK 64bit ??? : D sorry I am actually that dumb… x

anonymous_user_f7db3d16 · March 24, 2021, 3:12pm

Yeah when this engine was made XP could only handle 4 gigs ram max. Here Is a quote about XP

All 32-bit client versions of Windows (not just Vista/XP/7) have a 4GB
address space (64-bit versions can use much more). That’s the
theoretical upper limit beyond which you can not go.

But you can’t use the entire 4GB of address space. Even though you
have a 4GB address space, you can only use around 3.1GB of RAM.
That’s because some of that space is used by hardware and is not
available to the operating system and applications. The amount you can
use varies, depending on what hardware you have installed, but can
range from as little as 2GB to as much as 3.5GB. It’s usually around
3.1GB.

Note that the hardware is using the address space, not the actual
RAM itself. If you have a greater amount of RAM, the rest of the RAM
goes unused because there is no address space to map it to.

Ken Blake, Microsoft MVP (Windows Desktop Experience) since 2003

So it probably about the ram.

You can compile in 64 bit just use the 64 bit exe to compile the code. Then it will be in 64 bit. Only reason we did not compile in 64 bit and use 64 bit was our dll was 32 bit only. So the code did not run right without a 64 bit dll. If you have an external dll that works with your code make sure you make it 64 bit, so you can use the 64 bit properly.

Coldscooter · March 24, 2021, 7:17pm

@gamepainters Do you know about packaging the game in Frontend at 64bit?

anonymous_user_f7db3d16 · March 24, 2021, 7:46pm

No i did not read about that at all. I have compiled the 64 bit to see it work, but our 32 dll is interacting with game code for stats and it did not work with our dll so i quit messing with it.

Edit: just read about it. did not realize that was going on, nice to see you guys have got it figured out.