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Date:      Tue, 24 Apr 2001 21:40:16 -0700 (PDT)
From:      Ken Bolingbroke <hacker@bolingbroke.com>
To:        Jorge Biquez <jbiquez@icsmx.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: System Usage...
Message-ID:  <Pine.BSF.4.21.0104242135490.55189-100000@fremont.bolingbroke.com>
In-Reply-To: <5.0.2.1.2.20010424194509.03b3b100@icsmx.com>

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On Tue, 24 Apr 2001, Jorge Biquez wrote:

> 2) How could I know that my system is overloaded?. Because of the use of 
> Memory? or Active process? idle percentage? use of swap memory?

Personally, my definition of overloaded is more holoistic than looking at
any one or set of metrics.  If the machine is doing what it's supposed to
do in a timely manner, then it's not overloaded.  If the load is such that
it's causing things to fail or responding too slowly, then it's
overloaded.

You could be out of RAM and using swap, but still doing everything the
machine needs to do with a good response time, so the usage of RAM isn't a
definite factor.  Ditto for active processes, idle CPU, etc.  Each of
those metrics will react differently depending on what you're doing with
the machine, anyway.

Ken


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