| Memory Tuning for Containers and Beancounters [message #49170] |
Thu, 04 April 2013 13:48  |
darinpeterson
Messages: 3
Registered: April 2013
Location: USA
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Junior Member |
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Hi,
Is there a guide somewhere that discusses performance tuning for OpenVZ?
I am running CentOS 6.4 on a Dell PowerEdge server with 1.3TB disk space in a RAID 10 configuration with 32GB of memory.
I run ISPConfig 3 3.0.5.2 which has five containers:
mail.example.com - mail server
7GB RAM and 3GB VSwap
rock.example.com - web server 1
7GB RAM and 3GB VSwap
pb.example.com - web server 2
4GB RAM and 2GB VSwap
ns1.example.com - name server 1
1GB RAM and 512MB VSwap
ns2.example.com - name server 2
1GB RAM and 512MB VSwap
In some of the reading I did, I thought I wouldn't have to tweak beancounter parameters if I used RAM and VSwap settings. Did I misunderstand my reading?
Each container is running Debian Squeeze.
I have successfully installed the system, and have made some adjustments of kmemsize and privvmpages so all software could be installed. My mail server seems to take the most resources.
My goal is to do my best to have these parameters set well before the servers starts getting loaded, and then fine tuning parameters as needed.
Are there any guides to help me do this?
Here is the /proc/user_beancounters for the mail server.
Version: 2.5
uid resource held maxheld barrier limit failcnt
1152: kmemsize 15543268 20049920 28745400 29580328 0
lockedpages 0 4 2048 2048 0
privvmpages 238896 268499 262144 278528 0
shmpages 438 438 21504 21504 0
dummy 0 0 0 0 0
numproc 92 117 240 240 0
physpages 146312 208039 0 1835008 0
vmguarpages 0 0 33792 9223372036854775807 0
oomguarpages 103501 112197 26112 9223372036854775807 0
numtcpsock 22 40 360 360 0
numflock 21 22 188 206 0
numpty 1 15 16 16 0
numsiginfo 1 27 256 256 0
tcpsndbuf 313920 441520 1720320 2703360 0
tcprcvbuf 360448 434968 1720320 2703360 0
othersockbuf 191896 247104 1126080 2097152 0
dgramrcvbuf 0 21800 262144 262144 0
numothersock 158 182 200 200 0
dcachesize 1754782 3624960 3409920 3624960 0
numfile 1195 1410 9312 9312 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 48 48 128 128 0
If there is anyone who can help provide guidance, I would really appreciate it.
Thank you,
Darin
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| Re: Memory Tuning for Containers and Beancounters [message #49172 is a reply to message #49170] |
Fri, 05 April 2013 18:09  |
darinpeterson
Messages: 3
Registered: April 2013
Location: USA
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Junior Member |
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I'm going to answer my own question, since there haven't been any replies. I figured this out from another forum, where the moderator tole me to have a look at "vzsplit".
With vzsplit, I was able to create a sample container for my system. What it does is analyze my system and returns a configuration based on the number of servers that I provide it.
All of the bean counter settings were recommended as "unlimited", and the SWAPPAGES and PHYSICALPAGES both contained values.
PHYSPAGES="0:3746426"
SWAPPAGES="0:7492852"
KMEMSIZE="unlimited"
DCACHESIZE="unlimited"
LOCKEDPAGES="unlimited"
PRIVVMPAGES="unlimited"
SHMPAGES="unlimited"
NUMPROC="unlimited"
VMGUARPAGES="0:unlimited"
OOMGUARPAGES="0:unlimited"
NUMTCPSOCK="unlimited"
NUMFLOCK="unlimited"
NUMPTY="unlimited"
NUMSIGINFO="unlimited"
TCPSNDBUF="unlimited"
TCPRCVBUF="unlimited"
OTHERSOCKBUF="unlimited"
DGRAMRCVBUF="unlimited"
NUMOTHERSOCK="unlimited"
NUMFILE="unlimited"
NUMIPTENT="unlimited"
DISKSPACE="108958367:119854204"
DISKINODES="6970492:7667542"
CPUUNITS="1000"
That helped answer my question, so I believe I have what I need.
Regards,
Darin
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