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Making sense of cPanel's numbers...

Discussion in 'General Discussion' started by pepper_bg, Oct 2, 2010.

  1. pepper_bg

    pepper_bg Registered

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    Hi,

    We have a Linux instance with cPanel running on it. There are a couple of numbers the meaning of which I can't figure out:
    - CPU Usage: 155.4%/100% CPU - at the same moment here top shows "Cpu(s): 2.9%us, 0.5%sy, 0.0%ni, 96.6%id" and uptime "2.0, 2.2, 2.2", so what Linux command do I run to get this number?
    - HTTP Connections: 190/300 - this seems close to what I get when I run "netstat | grep http | wc" but can I be sure?

    Appreciate your help...
     
    #1 pepper_bg, Oct 2, 2010
  2. cPanelJared

    cPanelJared Technical Analyst

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    The CPU numbers are derived directly from the top command. For example, this a segment of the top output from a running server:

    Code:
    top - 07:35:33 up 12 days, 22 min,  1 user,  load average: 0.48, 0.16, 0.07
Tasks: 108 total,   1 running, 107 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.3%us,  0.0%sy,  0.0%ni, 99.7%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   1024864k total,   963156k used,    61708k free,   152428k buffers
Swap:  2031608k total,       72k used,  2031536k free,   456220k cached
    For a full explanation, you can type man top at the shell command prompt, and I also found the following explanations which break down each field in the output:

    top - Linux Command - Unix Command
    top - Linux command line to see the running processes in real time | Linux Operating System
    The Linux top command | Unix Linux top cpu, memory usage | ps command | devdaily.com

    The Apache information is derived from the output of this command:

    Code:
    # /usr/local/apache/bin/apachectl status
    The output of that command is what is displayed in Main >> Server Status >> Apache Status. The number of HTTP connections is derived from that output, not from a netstat command.
     
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    #2 cPanelJared, Oct 4, 2010
  3. pepper_bg

    pepper_bg Registered

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    Thanks for the reply, Jared!

    Yes, I know top. Yet I don't see there percentages going above 100% (well, I do for the individual processes when in Irix mode but that is irrelevant here). To which number in top corresponds cPanel's CPU Usage?

    Thanks...
     
    #3 pepper_bg, Oct 4, 2010
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