Large battles/scenes lower fps, CPU/GPU unused?

[Egbert]

What do you guys think is wrong with my computer?
Most of the time the game runs smooth at 100fps, but if I start a battle with more than 200 bots, performance can decline to as low as 5 fps (600 bots) but the game doesn't use all of my CPU, GPU or RAM.
During battles it can use all four cores but rarely uses 100% of any core, normally 1-2 cores run at ~50% for a total CPU usage of 20 - 40%. Campaign map and menus sometimes use only one core maxed to 100% (expected). GPU load ranges from 0% - 50%, but often stays at 0% during battles. WB normally uses less than 1.5 GB RAM, I have seen it up to 1.7GB

Spoiler: Specs

Windows 7  (build 7600), 64-bit
CPU: AMD Phenom II X4 955 3.2 GHz
RAM: 6GB 1333MHz
GPU: ATI Radeon HD5850 1024MB
Catalyst Version 10.6
Driver Packaging Version 8.741-100527a-100948C-ATI



Starting new log file.
Version:  1.126

-- OS: Microsoft Windows 7  (build 7600), 64-bit
-- RAM: Available physical RAM: 4095MB/4096MB
-- CPU: AMD Phenom(tm) II X4 955 Processor (AuthenticAMD)
- L1 cache size: 64K
- L2 cache size: 512K
- CPU Features: FPU MMX SSE SSE2 SSE3 HTT 3DNow! Ex3DNow! MmxExt
- Number of CPUs: 4 ( Speed: ~3200MHz / ~3200MHz / ~3200MHz / ~3200MHz )

-- GPU:
- D3D9 Adapter: 0 / Driver: aticfx32.dll / Description: ATI Radeon HD 5800 Series
- Texture Memory: 3828 ( Available Texture Memory: 3802 )

Spoiler: Screenshots

Large field battle 670 bots




Siege 480 bots




Custom battle 400 bots

So how do I get WB to make use of my computer? The fps slows down even when none of my components are overloaded.

 

[Archonsod]

You don't. Even if the system has spare capacity you still have limits on things like code stacks and registers.