May have found the bad FPS culprit
Tyr07
Join Date: 2012-11-25 Member: 173208Members
Join Date: 2012-11-25 Member: 173208Members
<div class="IPBDescription">NS2 using shared 'virtual video memory' when not required.</div>I've done some testing and I'm thinking it might be related to shared memory. If your system RAM speed isn't lightning fast, when it shared memory over to the system
ram it could be causing our frame drops.
My card has 898 MB of RAM
<a href="http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-275/specifications" target="_blank">http://www.geforce.com/hardware/desktop-gp.../specifications</a>
You'll see in my screen shots as I increase texture, resolution etc, my shared video memory drops.
It stats that only 145 MB of my video cards memory is allocated when I ramp everything up.
But as you will see in the stages of screen shots, much more is being used in textures, about 271 at least.
Now that's a small part of my actual video ram if it even did load the entire game into it.
If I go into full screen @ 1920x1080 I drop to about 20 frames per second, using about 600 or so MB of textures, but shared video memory will drop to 3100 or so.
This was the only thing I could come up with to explain the differences in performance with people who have 'better' or 'worse' hardware
but some people are running the game just fine.
My processor is an AMD ath II triple core 3.3 ghz
Being as I recall Windows 7 itself manges the shared video memory, I'm not sure if NS2 makes calls to the API that can or does affect this or how it can be resolved.
I've had zero luck finding a way to disable shared video memory for dedicated cards (Not to be confused with sharing video memory with an onboard video card which is done in the bios)
<img src="http://7th--heaven.net/images/ns/1.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/2.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/3.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/4.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/5.png" border="0" class="linked-image" />
ram it could be causing our frame drops.
My card has 898 MB of RAM
<a href="http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-275/specifications" target="_blank">http://www.geforce.com/hardware/desktop-gp.../specifications</a>
You'll see in my screen shots as I increase texture, resolution etc, my shared video memory drops.
It stats that only 145 MB of my video cards memory is allocated when I ramp everything up.
But as you will see in the stages of screen shots, much more is being used in textures, about 271 at least.
Now that's a small part of my actual video ram if it even did load the entire game into it.
If I go into full screen @ 1920x1080 I drop to about 20 frames per second, using about 600 or so MB of textures, but shared video memory will drop to 3100 or so.
This was the only thing I could come up with to explain the differences in performance with people who have 'better' or 'worse' hardware
but some people are running the game just fine.
My processor is an AMD ath II triple core 3.3 ghz
Being as I recall Windows 7 itself manges the shared video memory, I'm not sure if NS2 makes calls to the API that can or does affect this or how it can be resolved.
I've had zero luck finding a way to disable shared video memory for dedicated cards (Not to be confused with sharing video memory with an onboard video card which is done in the bios)
<img src="http://7th--heaven.net/images/ns/1.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/2.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/3.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/4.png" border="0" class="linked-image" />
<img src="http://7th--heaven.net/images/ns/5.png" border="0" class="linked-image" />
Comments
You have texture streaming enabled, so you will never see your Vram used that much :)