HP-UX 11i Version 2 June 2007 Release Notes

Libraries and Programming
Perl
Chapter 10
202
• There are improvements to reduce the memory usage of “sort” and to speed up some
cases.
• As much data as possible in the C source files is marked as “static”, to increase the
proportion of the executable file that the operating system can share between
process, and thus reduce real memory usage on multi-user systems.
• The internal pointer mapping hash used during ithreads cloning now uses an arena
for memory allocation. In tests this reduced ithreads cloning time by about 10%.
• “reverse sort ...” is now optimized to sort in reverse, avoiding the generation of a
temporary intermediate list.
• “for (reverse @foo)” now iterates in reverse, avoiding the generation of a temporary
reversed list.
Documentation
For further information, see the following:
• www.perl.org
• www.activestate.com
• http://learn.perl.org
Obsolescence
Not applicable.