How to know what component the bottleneck is

[ssamayoa]

Hi,

I'm disappointed with the performance of DCS in my rig and before investing on new one I would like to know what component the bottleneck is, my rig specs:

• i7 11770k
• Asus B560-plus-Wifi
• 64G 3200
• Nvidia 4070 OC
• DCS is installed in m2 PCIe 3
• Quest 3 at 72Hz native resolution connected via Airlink 
• Dedicated Wifi 6 router (TP-Link Archer AX21) connected to the rig 

Sometimes I see the Meta Link´s sand clock: is the CPU holding everything compressing? Is the network card? Is the GPU? Is DCS?

I already use OpenXR Toolkit with "Turbo Mode" on.

And yes, even tho I'm still a lousy pilot I play mostly on 4YA servers.

There is some Software that can monitor while I'm playing then give me the status of the components?

Some help appreciated.

PD: I may change Quest 3 for a Pimax Crystal Light but I'm afraid my rig will not handle it.

Edited October 20, 2024 by ssamayoa
CPU model

[gasmate]

I've found that Virtual Desktop provides a much more stable experience than both Air-link and cable with the quest 3. I'm able to play on mostly mid settings with FPS hovering around 50 on the ground taxiing and stable at the 72 once airborne (Syria map). My specs are

Msi B450 

5800x3d

RX6800

32GB ddr4

 

The last major update made a big difference to performance for me, I was able to bump up the pixel density to 1.2 for a nicer picture.

 

I mainly use the hornet and the AH-64, I know some modules will degrade performance more

Edited October 20, 2024 by gasmate

[SharpeXB]

Doesn’t the Ctrl+Pause performance monitor tell you if you’re GPU or CPU limited? This is also going to depend on your settings.

[ssamayoa]

53 minutes ago, SharpeXB said:

Doesn’t the Ctrl+Pause performance monitor tell you if you’re GPU or CPU limited?

What's that? The FPS counter? If so, how to interpret it.

TIA.

[SharpeXB]

7 minutes ago, ssamayoa said:

What's that? The FPS counter? If so, how to interpret it.

TIA.

Yes it will say CPU or GPU Bound

[ssamayoa]

UPDATE

I installed Intel's PresentMon then with this config (most relevant to GPU):

• Antialias DLAA
• Textures: High
• Terrain Textures: High
• Shadows: Flat Only
• Visibility Range: High (I hear that for VR Medium is enough)
• Lens Effect: Flare
• Heat Blur: Low
• OpenXR Toolkit: Turbo mode ON

Quest 3 at native resolution: 4128 x 2208 @72 Hz

I connected to 4YA with +/-15 additional users and get 60 - 72 fps in the base then ~72 fps on air even near land.

The data collected by PresentMon was interesting:

• Average CPU usage: 55% (from time to time small shuttering with DCS's FPS showing "CPU bound")
• Average GPU usage: 90% taxing and takeoff, 80% flying

So, it looks like I need to get a better GPU to be able to use a Pimax Crystal Light with my current rig  

BTW instead of Airlink I used USB cable: In the past I tried to use it but was simply awful, looks that they fixed whatever bad it had and now works well.

BOTTOM LINE:

Intel's PresentMon is what I was looking for.