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Reasonable and Expected Load Averages

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5 comments

  • cPRex Jurassic Moderator

    Hey there!  It's really impossible to say - one busy site could take down a server and cause serious load, or 100 static sites with no traffic could have almost no load on the machine.

    The best answer is the monitor the server at various times over several days to get a baseline of how the system is performing.

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  • verdon

    @cPRex Thanks :-) I understand and appreciate that. There must be some general rule of thumb though… a 15 minute load average of 1.0, 4.0, 10.0, 20.0… when does it become concerning? I believe there's a formula based on # of cpu that should give you a rough idea.

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  • cPRex Jurassic Moderator

    A load of 1 on a server with 1 CPU core means that single core is maxed out, so that isn't ideal.  In your case, if you have 96 cores, you could easily have a load of 100, but that seems unlikely to happen.

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  • verdon

    That’s what I thought, but I start getting antsy with loads over 5… I’d be calling the fire dept if my load got anywhere near 100! Thanks for your input. It's very much appreciated :-)

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  • cPRex Jurassic Moderator

    Hahaha - that's something we all have to get used to with these modern multi-core CPUs - a load of 10 could really be something like 0.1!

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