Devel::Arena - Perl extension for inspecting the core's arena structures
use Devel::Arena 'sv_stats'; # Get hash ref describing the arenas for SV heads $sv_stats = sv_stats;
Inspect the arena structures that perl uses for SV allocation.
HARNESS_PERL_SWITCHES=-MDevel::Arena=write_stats_at_END make test
None by default.
sv_stats
Returns a hashref giving stats derived from inspecting the SV heads via the arena pointers. Details of the contents of the hash subject to change.
write_stats_at_END
Not really a function, but if you import write_stats_at_END then Devel::Arena will write out a Storable dump of all stats at END time. The file is written into a file into a file in the current directory named $$ . '.sv_stats'. This allows you to do things such as
END
$$ . '.sv_stats'
to analyse the resource usage in regression tests.
sv.c in the perl core.
Nicholas Clark, <nick@talking.bollo.cx>
Copyright (C) 2005 by Nicholas Clark
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.
To install Devel::Arena, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Devel::Arena
CPAN shell
perl -MCPAN -e shell install Devel::Arena
For more information on module installation, please visit the detailed CPAN module installation guide.