5 Minute tickrate disrupt

[Ryan]

I believe it has to do with the cpu something about the cpu what i dont know. I have a 1000 FPS Server thanks to distant and all his hard work and about every 5 minutes or so the tickrate will go from 102 - 90 - 82 - 76 -89 - 98 - 110 - 127 - 106 - 102 during this time it has a lag spike. has anyone experienced this?

Linux - Cent OS
Processor - Quad Core Q6600 @ 2.6Ghz
Ram - 8 GB
Kernel - Zen

This is not just source it is tf2 as well..

[afterhoursgaming]

Disregard the tickrate when your experiencing lag issues. Because your ping was most likely unsteady during this period you will show odd tickrates. Its most likely a network issue either for you or for the server, I would begin by troubleshooting your network not the cpu.

[Ryan]

rebuilding the kernel with couple of networking stuff that could be slowing down the server disabled. we shall see if this fixes the problem.

[BehaartesEtwas]

are the server fps stable? if they drop below the tickrate you might see such problems...

[afterhoursgaming]

Its not server FPS I can put my life on it. If you notice his tickrate went well above the normal tickrate for servers which is indicative of having network issues. If anyone here has ever had lagg or unsteady ping you will notice (via netgraph) the tickrate will rise above 100 and fall below 100 because the packets are choking on your ping flucuating. fps drops would only cause tickrate to fall below 100 not rise to 106 and 127.

[Ryan]

its one of these network settings in the kernel then... but which one... hmmm

[Ryan]

which settings can i turn off and which settings are a must to keep ssh and internet connectivity?

[DiSTANT]

Ryan Wrote:I believe it has to do with the cpu something about the cpu what i dont know. I have a 1000 FPS Server thanks to distant and all his hard work and about every 5 minutes or so the tickrate will go from 102 - 90 - 82 - 76 -89 - 98 - 110 - 127 - 106 - 102 during this time it has a lag spike. has anyone experienced this?

Linux - Cent OS
Processor - Quad Core Q6600 @ 2.6Ghz
Ram - 8 GB
Kernel - Zen

This is not just source it is tf2 as well..

During the tickrate drops, do you notice your choke increasing? If so, it may be an indication that your rates are incorrect for the server settings.

As an example... if you had this in your server config file:

Code:

sv_minrate 25000
sv_maxrate 30000
sv_maxupdaterate 100
sv_minupdaterate 100
sv_mincmdrate 100
sv_maxcmdrate 100

You would want to make sure that your game client settings are:

Code:

cl_cmdrate 100
cl_updaterate 100
rate 25000  (through) 30000

This will reduce the amount of choke you get on the server.

Are you changing your server process to realtime using chrt? This might also help.

Anyways, good luck.

Cheers,
DiSTANT

[Ryan]

0 choke. On net_graph 3 the IN which is normally at 102/s that drops then raises above 102 to like 120s. Thats when the server starts to feel choppy then it goes back to 102 and is fine for another 5 minutes or so. According to fps meter it stayed 1000 FPS. I have tried realtime chrt and it still does this. Feel free to test it connect 72.5.250.219:27015; password test

[BehaartesEtwas]

choke could also only explain drops in tickrate, not spikes. I can imagine only two reasons at the moment:

- you ping variates very much (some packages take much longer than others, so your tickrate will be lower the moment your ping is rising and higher when your ping is falling). maybe some other traffic is blocking your connection every then and now?

- your server has some problems with the clock. it thinks that it is running with a constant tickrate of 100, but if the clock frequency variates very much your tickrate will variate the same way. this could be either a problem of the hardware or of the software. do you have an ntp-server running? maybe that could cause the problems, or maybe running an ntpd and observing its behaviour could give some hints....

of course the second could be a problem of your client as well, but you can exclude that by asking others and/or by playing on other servers...

[Ryan]

i think u might have been right about the timer thing the cpu timer freq was set to 2000 and i dont think it could handle it so i put it back to 1000 and the tf2 doesnt seem to lag the css lags a little bit but not much enough to notice it and i havent tried chrt with either so will be doing that

Before Tickrate Drops
http://s434.photobucket.com/albums/qq62/reck3d/?action=view¤t=Perfect.png

After Tickrate Fixed
http://s434.photobucket.com/albums/qq62/reck3d/?action=view¤t=1000FPS.png