FPS Spiking issues

[*XYZ*SaYnt]

I'm adminning a 24-slot CSS server hosted by gameservers, which is on a Linux box in the end. Every night, once the server gets around 18 players or above, everyone starts complaining of bad shot registry, and especially they complain that their client-side fps is going down. I can confirm this on my end too...when I join, my fps is certainly affected when there are a lot of players there.

So I started monitoring server fps on 5 minute increments, and here it is:




Where do I start to look for a problem here? The fps is bouncing around like crazy whenever there is a large number of players present. Currently,
sv_minrate =13000
sv_maxrate = 25000
which seems way high to me (especially the minrate)...could this be the problem? All other settings for min/max update and cmd rate are set to 45/67 (this is a 66 tick server, so that seems reasonable to me).

[Edit...I have also repeated this behavior with all mods turned off, logging off. etc..basically just the barebones srcds server...so it's not any addons that are causing this]

[Doggie52]

How did you monitor this, by the way?

[Drocona]

Server FPS has NOTHING to do with client FPS, if the client drops it's ALWAYS the client's problem.
CPU usage can drop FPS on teh server, memory usage can drop the FPS too.

Also rates won't influence the FPS so changing that won't make a difference.
What box is this running on (specs)?
And what tickrate is that server at?

[*XYZ*SaYnt]

Drocona Wrote:Server FPS has NOTHING to do with client FPS, if the client drops it's ALWAYS the client's problem.
CPU usage can drop FPS on teh server, memory usage can drop the FPS too.

Also rates won't influence the FPS so changing that won't make a difference.
What box is this running on (specs)?
And what tickrate is that server at?

That's what I was thinking too Drocona...but the reporting of people having low fps on our server was just too widespread for me to discount. But even ignoring that, shouldn't my server fps be more stable than I'm showing?

Tickrate of the server: 66

Hardware:
CPU: 2 x Intel P4 Xeon 3.06 Ghz
Hard Drive: 1 x EIDE 120 GB
RAM: 2048 MB
O/S: Fedora Linux

[*XYZ*SaYnt]

Doggie52 Wrote:How did you monitor this, by the way?

I used the little CLI C code (that runs rcon commands on a server remotely) referenced at the bottom of this page:

http://developer.valvesoftware.com/wiki/Source_RCON_Protocol

And I run it ("rcon stats") every 5 minutes using a spare linux box of mine via crontab, dumping into a little text file that I then plot.