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Date:      Fri, 17 Mar 2000 14:24:54 -0500
From:      Garance A Drosihn <drosih@rpi.edu>
To:        "Brent York" <york@mediarack.com>, <freebsd-smp@FreeBSD.ORG>
Subject:   Re: *sigh*
Message-ID:  <v0421010fb4f80fc6e8d3@[128.113.24.47]>
In-Reply-To: <000701bf8f9f$2b2859e0$5c5aca83@csd.unb.ca.acscience.com>
References:  <000701bf8f9f$2b2859e0$5c5aca83@csd.unb.ca.acscience.com>

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At 7:27 PM -0400 3/16/00, Brent York wrote:
>I'm quite sure I have the kernel options configured correctly,
>which is why Im so confused about this.
>
>So, without further ado, I ask a simple question, does FreeBSD 4.0-R
>fix this problem? Or is there some way I can fix it with 3.3-R such
>that the SMP is working properly and or most efficiently, and allowing
>threads to span CPU's and execute concurrently, and likewise with
>processes?

Just as a data point, I have run dual-processor systems on both
3.0-beta (pre-release) and 3.2-release.  On both, I definitely
see "CPU0" and "CPU1" show up as state's in 'top -SI' on the same
screen-update (and sometimes a few more processes in READY...).

Those are separate processes, not separate threads in one process.
If you don't see multiple processors active while you're running
multiple cpu-bound processes, then I doubt an upgrade to 4.0 will
whatever problem you're seeing with 3.3-release...  (unless maybe
you do have some config wrong and you happen to correct that while
installing the new release).

What do you get for output from:   dmesg | grep -i cpu

If you're trying to run multiple threads in a single process, well,
other messages have already given the details of the current status
of threads.


---
Garance Alistair Drosehn           =   gad@eclipse.acs.rpi.edu
Senior Systems Programmer          or  drosih@rpi.edu
Rensselaer Polytechnic Institute


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