I play on 1080p resolution with mostly everything on high. After testing a few different scenarios, I discovered a few things.
the only time the game ever used more than 16gb of ram was in multiplayer servers like TTI and Blueflag. These servers generally show me drawing ~20gbs of ram with these settings. In my reference single player mission, the ram usage stays at about 13gb and vram at 8gb.
With these settings, the tomcat uses about 1.5 - 2gb more ram than other modules. I jumped in the f18 in the same mission and saw a 1gb drop, the su25 dropped 2gb. Vram didnt seem to be affected.
Here you can see the ram usuage between the hornet and tomcat. 12.2 to 14.1gb. Its the same mission i just switched slots.
As far as performance goes, I think the only time having more than 16gb of ram helps is when playing online with the tomcat. At these settings, I was getting around 45-50 FPS with the tomcat on large multiplayer servers with 16gb. After switching to 32gb, it can hang at 60 FPS all day.
I think its safe to say the Tomcat is a ram hog, but at least the prices are cheaper now.
I can confirm that 16Gb is no longer “problem free” w/ DCS. I had trouble connecting to any multi-player server, until I set a fixed page file of 32768, as the default dynamic windows page file just wasn’t enough, and DCS would CTD w/ multiple crash logs. I think it’s safe to say that 32Gb should now be considered the new “minimum”, at least for multi-player.
@Brennus I’d say your right. Without using the page file you will need more than 16gbs of ram to play online. And this is with a 8gb graphics card. I cant imagine what would happen if you were running a 970 or smaller card.
There are reports from Heatblur that they’ve realised DCS loads and decompresses ALL module/game sounds when it starts up. Obviously with Jester that’s a LOT of sounds. DCS later on purges many of them and the memory footprint seems to improve somewhat.
Apparently there’s a fix already submitted and awaiting the next OB release.
Makes sense now… Electronic Battlefield simulations are constantly evolving as more content is added. I suspect the engine will eventually need to be updated or replaced to something more capable and efficient to support features, such as dynamic campaigns. Such is the nature of sims.