I've noticed the same thing. My server fps only stays at reasonable levels if 
the CPU is near zero utilization. It seems like even if the CPU utilization 
goes up a few percent the server fps will drop drastically and each time it 
drops it seems to cut in half. Like from 64 to 32 to 16 to 8  The CPU doesn't 
seem to be fully utilized, yet the FPS drops sometimes to such low levels that 
it affects gameplay. I've tried setting processor affinity, setting high max 
fps (that just makes it drop from 1000 straight to 32 and so on). There's never 
a time when it goes from say 60 to 50.  Instead it's like it crosses some 
threshold value and the engine decides to chop fps in half.  Later, when CPU 
utilization drops a bit fps will instantly double to normal levels. There's no 
in-between. 

 During the recent Halloween event I even experimented with just using the 
plain valve installation with no add-ons at all, still getting the same 
results. The hardware is fairly beefy too. Dedicated hardware: Quad core xeon, 
8 gigs of ram. 

I expected to be able to run multiple tf2 instances on such a machine. At least 
one per core.  But even just two instances when full seem to start seeing these 
drastic fps drops. 

Thomas

On Nov 10, 2010, at 9:07 AM, <ohn...@maxpowergc.com> wrote:

> 
> OK, so I'm wondering if some people could share their experiences with me
> 
> on this issue. I'm running a TF2 srcds server... and I've tried it on
> 
> Ubuntu 10.10, Gentoo, Windows Server 2008, and Windows Server 2003, yet I
> 
> get the same results in FPS. I've been noticing on my server that FPS can
> 
> be like 1000.00, then 5 seconds later be 998.06, then 5 seconds later be
> 
> 210.74..., 1000.00, 985.37, 21.75, 30.58, 1000.00, 1000.00... and so forth;
> 
> in other words, its high at times, but then has these brief periods of
> 
> drops in FPS when the server has players. When the server is empty, it
> 
> doesn't drop as low... but I can still see it drop down into the lower
> 
> hundreds.
> 
> 
> 
> So, in terms of FPS, is this normal?
> 
> 
> 
> What is normal FPS behavior?
> 
> 
> 
> If it drops below 66 on a 66 tick server config, does that mean there's
> 
> prediction loss and/or lag?
> 
> _______________________________________________
> To unsubscribe, edit your list preferences, or view the list archives, please 
> visit:
> http://list.valvesoftware.com/mailman/listinfo/hlds

_______________________________________________
To unsubscribe, edit your list preferences, or view the list archives, please 
visit:
http://list.valvesoftware.com/mailman/listinfo/hlds

Reply via email to