Strange server jitter every 15 seconds

jpwanabe · **Author**

On one of my servers there is a strange jitter that occurs every 15 seconds. It lasts for less then a second but every one in the server can feel it. While the justter happeneds, the sv: and var: on net_graph 5 show up as red and lerp: is yellow. It happens so fast I can't really even see what it is set to without a recording and going frame by frame.

Here is 1 second before the jitter.
http://puu.sh/kaO3W/3b6259160b.jpg
And here is the jitter.
http://puu.sh/kaO25/c7b99005e2.jpg

This is what my server.cfg is set to with all the sensitive stuff removed.

Metamod and Sourcemod versions
MetaMod:Source v1.10.6-devV, SourceMod v1.7.3-dev+5241

And plugins.
Can anyone help me out here.

Neuro Toxin · *Last edited by Neuro Toxin; 09-14-2015 at 19:51.*

Sounds like it could be a non threaded SQL* query on a 15 second timer.

The first generic response would be.

1. Remove all non essential plugins

Do the spikes still occur?

jpwanabe · 09-14-2015 , 19:55 Re: Strange server jitter every 15 seconds

Quote:

Originally Posted by Neuro Toxin

Sounds like it could be a non threaded SQL* query on a 15 second timer.

The first generic response would be.

1. Remove all non essential plugins

Do the spikes still occur?

By SQL query you mean something may be going on in my mysql databases? I haven't check them yet.

Potato Uno · 09-14-2015 , 20:12 Re: Strange server jitter every 15 seconds

Basically he says to suspect any plugin that interacts with a database to cause the problem.

You can probably run the SM profiler and also see if you can find what function is taking long to execute (and I think it might also mention the plugin name too - I never used it).

Horsedick · 09-14-2015 , 20:31 Re: Strange server jitter every 15 seconds

I noticed this happen at times with a SQL query or something pulling high on the CPU.
SM has a few more versions if you haven't updated it yet... your on xx41 I think its up to xx48 along with a recent release of MM

jpwanabe · 09-19-2015 , 09:41 Re: Strange server jitter every 15 seconds

So I found the problem. If you run replay on your server, not only does the server save the replay on your website, it also saves it locally at "tf\replay\server\blocks". Don't do what I did and not clear that. Over 1,000,000 files in there. Set it up to clear after a file is 7 days old, and every thing works fine.

Potato Uno · 09-19-2015 , 20:17 Re: Strange server jitter every 15 seconds

Off topic but does replay even work?