Re: 5:10: Why is this slower than 5.8.8?

[eserte]

Here are my results (amd64-freebsd 6.2, perl5.8.8 from ports, perl5.10.0 self-compiled):

$ perl5.8.8 ~/trash/test.pl
Benchmark: running set_inherited_class, set_inherited_object for at le
+ast 3 CPU seconds...
set_inherited_class:  5 wallclock secs ( 3.14 usr +  0.00 sys =  3.14 
+CPU) @ 403854.65/s (n=1268356)
set_inherited_object:  4 wallclock secs ( 3.16 usr +  0.01 sys =  3.17
+ CPU) @ 441967.29/s (n=1401865)


$ /usr/local/src/perl-5.10.0-sysmalloc/perl -I/usr/local/src/perl-5.10
+.0-sysmalloc/lib ~/trash/test.pl 
Benchmark: running set_inherited_class, set_inherited_object for at le
+ast 3 CPU seconds...
set_inherited_class:  4 wallclock secs ( 3.15 usr +  0.01 sys =  3.16 
+CPU) @ 309119.05/s (n=975657)
set_inherited_object:  5 wallclock secs ( 3.08 usr +  0.00 sys =  3.08
+ CPU) @ 402004.47/s (n=1237420)

$/usr/local/src/perl-5.10.0-perlmalloc/perl -I/usr/local/src/perl-5.10
+.0-perlmalloc/lib ~/trash/test.pl 
Benchmark: running set_inherited_class, set_inherited_object for at le
+ast 3 CPU seconds...
set_inherited_class:  6 wallclock secs ( 3.12 usr +  0.00 sys =  3.12 
+CPU) @ 378921.38/s (n=1181169)
set_inherited_object:  6 wallclock secs ( 3.15 usr +  0.00 sys =  3.15
+ CPU) @ 469993.13/s (n=1479744)

perl with sysmalloc seems to be the worst, while the both perls with perlmalloc have similar results.

[Anonymous Monk]

You forgot 5.8.8 without perlmalloc (not from ports) which would be the fastest (at least on i386)

[ian]

I'm curious to know under what benchmark you ran these tests and what the results were. Also, were there any other flags in the perl build that be factors, i.e. what's the output of perl -V?