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List:       opensolaris-discuss
Subject:    Re: [osol-discuss] Merge other distros to OpenIndiana?
From:       "Richard L. Hamilton" <rlhamil () smart ! net>
Date:       2010-09-17 1:44:23
Message-ID: 2049141890.41284713094916.JavaMail.Twebapp () sf-app1
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> Cloning somewhat helps with the disk footprint, but
> the savings there will 
> get lower over time as more and more binaries are
> upgraded.  We clearly 
> have to work on that.  The memory saving of sparse
> root zones was nothing 
> to sniff at.

So a share-able executable, library, or object had
its read-only parts only resident once across the global and
multiple sparse zones (sharing a copy of the same object),
but now (even if the zone resides in a ZFS clone) is loaded
once for each (non-sparse) zone?

I bet that will be a big problem on for example a workstation
using Trusted Solaris extensions, where each label corresponds
to a zone; since the set of libraries for GUI applications tends
to be rather large (esp. with GTK+/GNOME as compared to the old
days of Motif).

Probably affects CPU cache, too.

Yuck.
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