Ok, here is what I've figured out:

1.  The command line option "-tickrate x" for srcds does not correlate 
to server fps, "+fps_max x" regulates that.  I'm still not sure what the 
difference is between tickrate and server fps is for srcds.

2.  The server.cfg cvar, "sys_ticrate x" for hlds does roughly correlate 
to server fps.  There is no fps_max option or cvar for hlds.  There is 
however, an unrelated client cvar "fps_max x".

I am however trying something different.  I've decided to make the 
tickrate, sys_ticrate and fps_max all multiples of sv_maxupdaterate.  I 
will see if that affects performance in any way.  (I have funky rate 
settings due to the fact that I run a bandwidth challenged server on a 
business cable connection.)

Drek

Gary Stanley wrote:
> At 11:18 AM 9/21/2008, Crazy Canucks wrote:
>   
>> I am running a 1000hz, low latency kernel.  I have my -ticrate (command
>> line option) set to 66 on my DOD: Source server.  I thought that ticrate
>> basically governed server fps, but when I run the "stats" command in the
>> console, I see that my server is running at around 200 fps.
>>     
>
> Server FPS is measured by doing 2 gettimeofday() calls and doing some 
> math.. (subtracting both values for the nsec field?)
> Anyways, most of the time what the server's FPS shows is how much 
> granularity HZ on the system is, or how accurate gettimeofday() is 
> going to be..
> If you only want the server to run at 66hz, just, well, lower HZ to 
> about 100 :)
>
>   
>> This doesn't appear to be a problem, I haven't noticed any excessive cpu
>> load issues, however, I like to know what is going on and how things
>> work, in case I do need to make adjustments.  Why is my server running
>> at 200  and not 66 fps?
>>     
>
> +fps_max 66?
>
>
>
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