"Load Average" What's this?

[max2000]

Hello

On my DA Admin panel I can read :

Load Average 0.10, 0.03, 0.01

What these numbers mean?

Thank you for you help

 

[Eric]

System load average
Lower = better
Normally, it should not exceed 1.00 (100%) per CPU.
0.10 = 1 minute ago = 10%
0.03 = 5 minutes ago = 3%
0.01 = 15 minutes ago = 1%

 

[max2000]

Thank you Eric

How can I see how much CPU is using any specifi customer ?

 

[Eric]

Unless he or she logins from SSH, you can't. However, you can monitor httpd, exim, mysqld, etc.

Commands:
top
top -bn 1
ps -eo user,pid,ppid,pcpu,pmem,state,args --sort user

 

[max2000]

Thank you

I do not offer SSH acces to my customers. However, I am aware about some bad written CGI scripts that can use too much ressources on the server.

I will try the commands you provide.

 

[Daijoubu]

Server load isn't the CPU utilization...
It's computed from bunch of (random) things among the number of queued process awaiting access to the CPU

 

[nobaloney]

System load average
Lower = better
Normally, it should not exceed 1.00 (100%) per CPU.
0.10 = 1 minute ago = 10%
0.03 = 5 minutes ago = 3%
0.01 = 15 minutes ago = 1%

It's not that kind of an average at all.

The first number is the average number of processes waiting to execute at any given time during the past minute.

The second number is the average number of processes waiting to execute at any given time during the past five minutes.

And the third number is the average number of processes waiting to execute at any given time during the past fifteen minutes.

You can find some interesting information here.

Jeff

 

[Daijoubu]

Server load is just a number afterall
Depending on the process, it may execute instantly (different priority) or take longer
If the sites still loads fast, don't worry about it...

 

[Eric]

Sorry, it's a measure of CPU utilization.

Server load isn't the CPU utilization...

Perhaps I misunderstood what Blair Zajac is saying...

Originally posted by Eric
Normally, it should not exceed 1.00 (100%) per CPU.

Blair Zajac (ORCA Author)
If long term trends indicate increasing figures, more or faster CPUs will eventually be necessary unless load can be displaced. For ideal utilization of your CPU, the maximum value here should be equal to the number of CPUs in the box.

 

[nobaloney]

Or perhaps he's wrong?

Jeff

 

[sander815]

where do you see server load? i cannot find it in the enhanced skin

 

[max2000]

It's easy

Go to Admin Level then clic on "Complete Usage Statistics" under Extra Features title.

 

[resolveit]

Hi,

Looking through several man pages (on different Linux systems) and several books on Linux and several websites discussing this "Load Averages" issue (and of course my experience and the experience of several of my friends who are unix administrators) I can only conclude that Jeff is correct. It is NOT CPU load, it is the average run queue of your server, (number of waiting processes) and yes the lower the number the better but it also depends on your hardware and what you're doing.

Regards,
Onno Vrijburg