Andrew Pantyukhin wrote:
On Thu, Oct 04, 2007 at 11:03:04PM +0400, Dmitry Marakasov wrote:
Hi!
I just have an idea that may be useful: static port builds. This can
help produce packages without any depends, which may be useful
sometimes.
What I'd like to see first is some quantitative research on the
benefits of it. Static builds are a lot more headache than one
could imagine from a number points of view.
I can give you quantitative data on the benefits of shared objects. On
a web server running FreeBSD 6.2 I found 98 shared objects sharing
16,790,901 bytes of memory through 1,002 mappings.
Without shared libraries the corresponding binaries would require
198,815,270 bytes - an order of magnitude more.
On freefall I found 58 shared objects sharing 11,285,262 bytes of memory
through 2,127 mappings. Without shared libraries the corresponding
binaries would require 515,107,268 bytes - 50 times more.
These are not just memory savings, but, more importantly on a modern
system, they contribute to improved locality in the code cache.
I've put the Perl script I used for obtaining these figures at
http://www.spinellis.gr/blog/20071006/
Diomidis Spinellis - dds@
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