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Date:      Mon, 7 Dec 1998 13:10:35 +0100
From:      Eivind Eklund <eivind@yes.no>
To:        Brett Glass <brett@lariat.org>, chat@FreeBSD.ORG
Subject:   Re: Question regarding Linux emulation
Message-ID:  <19981207131035.H13839@follo.net>
In-Reply-To: <4.1.19981206215315.042becc0@127.0.0.1>; from Brett Glass on Sun, Dec 06, 1998 at 09:53:49PM -0700
References:  <4.1.19981206215315.042becc0@127.0.0.1>

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On Sun, Dec 06, 1998 at 09:53:49PM -0700, Brett Glass wrote:
> I was asked these questions this evening, and don't know the answers.
> 
> How much of a speed penalty, if any, is incurred for using Linux emulation
> under FreeBSD compared to running a natively compiled version of the same
> program (or, for that matter, running the Linux program under Linux)?

Your speed-penalty will only be measurable if you're doing
benchmarking of syscall overhead.  Real-world Linux binaries will
usually run faster under FreeBSD than under Linux, due to the better
VM system.

Eivind.


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