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Date:      Thu, 7 Aug 2008 16:22:35 -0400
From:      "Josh Carroll" <josh.carroll@gmail.com>
To:        "Ronald F. Guilmette" <rfg@tristatelogic.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Questions about healthd and mprime
Message-ID:  <8cb6106e0808071322o17271fe9oefe1af2bf54fe931@mail.gmail.com>
In-Reply-To: <32214.1218139739@tristatelogic.com>
References:  <32214.1218139739@tristatelogic.com>

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> OK, so _now_ I've looked around and found out that a lot of folks
> these days heat up their CPUs by running the "mprime" thingy.  Swell.
> But I don't know diddly poo about this program.  So can somebody please
> tell me the set of "best" command line options for the thing if your
> only goal is to stress your CPU?
>
> Thanks in advance.

If you just want to heat up your CPU, this should suffice:

yes > /dev/null &

Once for each CPU/core.

mprime is useful to stress test the cores, looking for a situation
where the core fails. This can cause odd system problems, and not
necessarily a crash or lock up.

But in terms of just heating the cores up, "yes" should do the trick.

Josh



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