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Date:      Fri, 19 Aug 2016 11:44:29 +0100
From:      Steve O'Hara-Smith <steve@sohara.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: How do I limit I/O usage for a user/process? A user broke my system
Message-ID:  <20160819114429.756b3d25f9335417a0c673c3@sohara.org>
In-Reply-To: <20160819101657.GB2560@hephaistos.local>
References:  <CAM4nNt8dOojYNA6FK6_zj7vN92e6ML2A0QbsXH3fz8rP%2BCbVTg@mail.gmail.com> <20160819104058.1c60a63fb832fbdc1524207c@sohara.org> <20160819101657.GB2560@hephaistos.local>

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On Fri, 19 Aug 2016 12:16:57 +0200
"Martin S. Weber" <Ephaeton@gmx.net> wrote:

> On 2016-08-19 10:40:58, Steve O'Hara-Smith wrote:
> (...)
> > 	Very likely the problem was due to memory use and you are tight
> > on memory for your normal load.
> 
> Which, as I might add, *should* be the normal usage pattern of a box.

	You want all the memory in use I agree, but you don't want it so
tight that there is constant memory pressure so there should be a goodly
amount inactive, in cache and buffers. If there is swap activity then you
are too tight for the load.

-- 
Steve O'Hara-Smith                          |   Directable Mirror Arrays
C:>WIN                                      | A better way to focus the sun
The computer obeys and wins.                |    licences available see
You lose and Bill collects.                 |    http://www.sohara.org/



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