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Date:      Wed, 8 Jul 1998 00:50:56 +0200
From:      Wolfram Schneider <wosch@panke.de.freebsd.org>
To:        Kevin Day <toasty@home.dragondata.com>
Cc:        current@FreeBSD.ORG
Subject:   Re: -current wishlist
Message-ID:  <19980708005056.10385@panke.de>
In-Reply-To: <199807020322.WAA05412@home.dragondata.com>; from Kevin Day on Wed, Jul 01, 1998 at 10:22:08PM -0500
References:  <199807020322.WAA05412@home.dragondata.com>

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On 1998-07-01 22:22:08 -0500, Kevin Day wrote:
> I don't know if there's a Santa Claus on -current right now, but I've got a
> few suggestions/weak spots I see in -current now, and would be more than
> willing to help anyone wanting to work on these. I'm not that deep into the
> mysteries of the kernel to just do it myself, but I'm a willing test
> subject. :)
[...]
> 8) Load average seems to have no bearing on how busy the system really is.
> 
> last pid: 21803;  load averages:  2.74,  2.82,  2.88
> 135 processes: 3 running, 131 sleeping, 1 zombie
> CPU states:  1.7% user,  0.0% nice,  1.3% system,  1.7% interrupt, 95.2% idle
> Mem: 75M Active, 12M Inact, 23M Wired, 6520K Cache, 8347K Buf, 8364K Free
> Swap: 164M Total, 25M Used, 139M Free, 16% Inuse
> 
>   PID USERNAME PRI NICE  SIZE    RES STATE  C   TIME   WCPU    CPU COMMAND
> 21800 toasty    29   0  1664K   940K CPU0   1   0:00  2.15%  1.03% top         
> 
> If the load average is 2.74, how can the CPU be 95.2% idle? If it really is,
> what's it waiting on so much? Or am I just misinterpreting this?

The machine waits for i/o traffic.
Processes which sleeps less than 1 second due net or disk
i/o traffic counts as runnings processes.

-- 
Wolfram Schneider <wosch@freebsd.org> http://www.freebsd.org/~w/

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