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Date:      Mon, 27 Oct 2003 13:08:21 +0000
From:      Andrew Humphries <humphie@ucip.boyko.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: Linux port.....
Message-ID:  <1067260100.6768.2.camel@revelation.home.net>
In-Reply-To: <200310271252.h9RCq1C22058@anon.securenym.net>
References:  <20031024214427.22367.qmail@web20709.mail.yahoo.com> <1067042620.38004.1429.camel@verdammt.falcotronic.net> <200310271252.h9RCq1C22058@anon.securenym.net>

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On Mon, 2003-10-27 at 13:51, C. Ulrich wrote:

> On Sat, 2003-10-25 at 00:43, andi payn wrote:
> > 4. While running a similar set of services, FreeBSD may be using less
> > background processing time. Or maybe not. I definitely see significantly
> > lower CPU usage (idling under X, FreeBSD shows about 2-10% CPU, linux
> > about 15-35%). However, this may just be an artifact of linux's
> > notoriously bad reporting, or the fact that I'm using the O(1) kernel
> > and preemptible kernel patches, or maybe something stupid some GNOME
> > applet is doing because I configured it wrong under linux; who knows....
> 
> Check with top to see which processes are using the CPU. For me, 9 times
> out of 10, it's the X server itself taking up cycles for doing nothing.
> It won't do it right after a fresh boot, but some program along the way
> usually triggers the siphoning of the CPU usage.
> 
> Charles Ulrich


I have found this an awful lot whilst running X under Linux. After a
fresh boot, with nothing running, it works nicely. Give it a couple open
applications, and even when nothing is running except X itself, it will
take up extra CPU time and physical memory space until freshly booted
again.

Regards,

-- 
Andrew Humphries <humphie@ucip.boyko.org>



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