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Date:      Fri, 21 Nov 2003 10:03:37 -0800
From:      Tim Kientzle <kientzle@acm.org>
To:        Guy Helmer <ghelmer@palisadesys.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: HEADS UP: /bin and /sbin are now dynamically linked
Message-ID:  <3FBE5379.10201@acm.org>
In-Reply-To: <FPEBKMIFGFHCGLLKBLMMOEDACDAA.ghelmer@palisadesys.com>
References:  <FPEBKMIFGFHCGLLKBLMMOEDACDAA.ghelmer@palisadesys.com>

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Guy Helmer wrote:
> Thanks to /rescue and the live filesystem archives on
> current.freebsd.org, I was able to recover a machine
> that I hosed after the statfs change by trying to installworld
> without building & booting a new kernel first.

Great!  Any changes you could suggest
to /rescue based on that experience?

> Regarding the performance loss due to the dynamic /bin and /sbin,
> wouldn't prebinding help?

Probably.

Profiling the dynamic-link code would probably
also help.

NetBSD made this change a long time ago,
and Luke Mewburn observed that switching
/bin to dynamic linking prompted a lot of
people to study and optimize the dynamic
linking code, with big wins for programs
like Mozilla and OpenOffice that rely heavily
on shared libraries.

Tim



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