Hi all,
This question is not directly related to srcds, but may be more of a
Linux question, but since there are a lot of experienced gameserver
sysadms here, it seemed the logical place to ask. :)
First off, my setup, so that is in place
Running CentOS 5.6 in a ESXi VMWare, PAE kernel, three cores, 4GB RAM
(I'm running a 1:1 on actual cores/virtual cores, so i'm not
overextending the CPU)
Two 24 man TF2 servers, and 5 forked L4D servers on this VM, nothing
else.
On to the problem:
I've been hearing complaints from my players, and have experienced
myself, small lag-stutters from time to time, where the entire server
seems to stutter for at second or two, and then just continue. Pings
stay normal, people aren't kicked or any such problems.
So, i've started debugging (mostly monitoring with dstat and htop), and
have found out something which I think is very strange, and may or may
not be related to the issue at hand.
TD2 servers have been more or less full the entire time (22-24 players
at all times of monitoring), L4D have had 1-2 forks populated as well.
Anyway, I am seeing load spikes, where load jumps from 1.5 to 3.5 in a
single second tick in dstat, but the strange thing, there are no other
metric that jumps at the same time, that could explain the large jump in
load (I'm monitoring CPU, Mem, diskIO and process count, and there are
no odd jumps there, no)
Furthermore, this evening i'm seeing loads in the 8-9 range, but CPU
utilization (usr/idle/wait), memory use, disk IO is the same as it was
this afternoon, and its more or less the same number of players online
(Give or take 5-7 players), and servers are as playable as they always
are.
Log files from dstat can be supplied, if anyone deems necessary.
Does anyone know if this is srcds related, or my system thats just
wonky (maybe reporting wrong load values?), or, possible know some
metric that contribute to load, that I haven't monitored yet?
Thanks in advance :)
/Peter
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