On Jan 8, 2009, at 12:27 PM, Sam Seaver wrote:
On Thu, Jan 8, 2009 at 11:24 AM, Sherm Pendley <sherm.pend...@gmail.com
On Jan 7, 2009, at 10:36 PM, Vic Norton wrote:
Another curiosity. I just checked out the Perl5.8.8 files in /usr/
/opt/local/bin. The /usr/bin one came with Leopard, which I bought
Apple a week or so ago. It was created on Dec 7, 2007, and it
weighs 48 KB.
The MacPorts perl was created on Sep 5, 2008, and weighs 1.1 MB.
wonder, should one Perl5.8.8 be 25 times as big as another?
MacPorts' perl is probably built with a static libperl. Apple's is
with a dynamic libperl.
Would this mean that one version is 'faster' than the other?
Apple has build-time information from building the entire OS that
allows them to use prebinding on their libperl. That made a big
difference on pre-Tiger releases, where non-prebound dynamic libraries
carried a hefty performance penalty. Since most of us don't have the
info that Apple has, Perl defaults to building a static libperl on
Darwin. Apple overrides the default with "-Duseshrplib" for their build.
In Tiger and newer, the dynamic loader is much improved and the
reliance on prebinding eliminated. But Perl still defaults to building
a static libperl, basically out of inertia.