Fletcher,
I have been seeing CPU spikes since the last few updates. I had some
spikes last night that didn't coincide with anything being dumped to
netspike.txt. Is it possible this is still related to debug information
being collected, but not dumped to the file? My netspike.txt files
aren't particularly large right now as I just did a clean install Monday
night on both my servers.
Regards,
Russell
On 11.07.2012 09:58, Fletcher Dunn wrote:
The netspike file has long existed in the Source engine as a way to
track which entities were causing large spikes of network traffic.
There's a convar you can use to configure a threshold when it will
get
dumped. (I think by default it's off.) Recently there was a change
where, if a client was dropped to the infamous "snapshot overflow"
error, it would re-run the network packing code for that client,
forcing the netspike file to be dumped, to help figure out what
entities are the cause of the problem. That could definitely cause
CPU spikes. I didn't realize we had shipped with that debugging mode
on. We'll make it configurable by convar for the next release.
In the meantime, each time it dumps a network trace, it means you
dropped a client. It needed to send them a full snapshot of the game
state, but the snapshot was too big, so it had to drop the client.
You might want to see which entities are responsible for so much
traffic, because you are dropping players.
If there's something particular to your server, this trace will help
you tune it. If you find a problem you think is global to the game,
please report it here.
Your humble servant,
Fletch
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