# Results from testing overload module usage performance for a 
# compiled-from-source interpreter versus the standard RH perl 
# interpreter
#
# 2008/04/01
#
[user ~]$ uname -a
Linux the.machine.name 2.6.18-8.1.8.el5xen #1 SMP Mon Jun 25 17:19:38 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
[user ~]$ ~/perl/bin/perl overload_bug.t 
1..6
# prepping perl interpreter with Hashref instantiation (prime the pump)
ok 1 - Hashref instantiation (prime the pump)
# Hashref instantiation (prime the pump) time: 0.0089918s
# prepping perl interpreter with BlessedHashref instantiation (prime the pump)
ok 2 - BlessedHashref instantiation (prime the pump)
# BlessedHashref instantiation (prime the pump) time: 0.017906s
# prepping perl interpreter with OverloadHashref instantiation (prime the pump)
ok 3 - OverloadHashref instantiation (prime the pump)
# OverloadHashref instantiation (prime the pump) time: 0.0131737s
# perforiming test: BlessedHashref bulk empty instantiation
ok 4 - BlessedHashref bulk empty instantiation
# BlessedHashref bulk empty instantiation time: 0.012444s
# perforiming test: OverloadHashref bulk empty instantiation
ok 5 - OverloadHashref bulk empty instantiation
# OverloadHashref bulk empty instantiation time: 0.012465s
# difference: 0.2% longer
ok 6 - Negligible difference for overload
[user ~]$ /usr/bin/perl overload_bug.t 
1..6
# prepping perl interpreter with Hashref instantiation (prime the pump)
ok 1 - Hashref instantiation (prime the pump)
# Hashref instantiation (prime the pump) time: 0.0075825s
# prepping perl interpreter with BlessedHashref instantiation (prime the pump)
ok 2 - BlessedHashref instantiation (prime the pump)
# BlessedHashref instantiation (prime the pump) time: 0.0171273s
# prepping perl interpreter with OverloadHashref instantiation (prime the pump)
ok 3 - OverloadHashref instantiation (prime the pump)
# OverloadHashref instantiation (prime the pump) time: 5.2946298s
# perforiming test: BlessedHashref bulk empty instantiation
ok 4 - BlessedHashref bulk empty instantiation
# BlessedHashref bulk empty instantiation time: 0.011003s
# perforiming test: OverloadHashref bulk empty instantiation
ok 5 - OverloadHashref bulk empty instantiation
# OverloadHashref bulk empty instantiation time: 3.671455s
# difference: 33267.8% longer
not ok 6 - Negligible difference for overload
#   Failed test 'Negligible difference for overload'
#   at overload_bug.t line 273.
# Looks like you failed 1 test of 6.