CPAN::Forum
Object-InsideOut - Re: significant OIO overhead with thousands of objects
| Posted on Thu Nov 22 22:02:04 2007 by shmem in response to 6475 (See the whole thread of 13) |
| Re: significant OIO overhead with thousands of objects |
|
As an immediate relieve, check out Anno Siegel's Alter package which provides Inside-Out functionality at a bit more than no cost. The OIO engine is quite heavy, so I'm not surprised by the overhead per se, but by the amount. I made tests with a 50.001 lines file, each line consisting of an int and 52 more fields, as (a..z) alternated with random words from/usr/share/dict/words.
perl -nle 'chop && push@w, $_ if !($.%10) } \
{ $w=@w;print join("\t",$_,map{$_,$w[rand$w-1]}a..z) for 0..50000' \
/usr/share/dict/words > text
Well, not 50.001, but 49850, since some values in the a..z hash are undefined. Anyways... Built OIO-object from each line, then Alter-objects:
perl -MWords -nle 'use Time::HiRes qw(gettimeofday tv_interval);BEGIN{$tz=[gettimeofday]} @l=split/
+\t/,$_;push @o,Words->new("uid",@l) if @l == 53}{print tv_interval($tz,[gettimeofday])' text
29.586015
perl -MWords2 -nle 'use Time::HiRes qw(gettimeofday tv_interval);BEGIN{$tz=[gettimeofday]} @l=split
+/\t/,$_;push @o,Words2->new("uid",@l) if @l == 53}{print tv_interval($tz,[gettimeofday])' text
7.258618
Some improvement. I don't know what your constructor does, here are the two packages I used for the test:
package Words;
use Object::InsideOut;
my @uid :Field :Accessor(uid);
my @a :Field :Accessor(a); my @b :Field :Accessor(b);
my @c :Field :Accessor(c); my @d :Field :Accessor(d);
my @e :Field :Accessor(e); my @f :Field :Accessor(f);
my @g :Field :Accessor(g); my @h :Field :Accessor(h);
my @i :Field :Accessor(i); my @j :Field :Accessor(j);
my @k :Field :Accessor(k); my @l :Field :Accessor(l);
my @m :Field :Accessor(m); my @n :Field :Accessor(n);
my @o :Field :Accessor(o); my @p :Field :Accessor(p);
my @q :Field :Accessor(q); my @r :Field :Accessor(r);
my @s :Field :Accessor(s); my @t :Field :Accessor(t);
my @u :Field :Accessor(u); my @v :Field :Accessor(v);
my @w :Field :Accessor(w); my @x :Field :Accessor(x);
my @y :Field :Accessor(y); my @z :Field :Accessor(z);
my %init_args :InitArgs = (
map { $_, { Mandatory => 1 } } a..z
);
sub init :Init {
my ($self, $args) = @_;
#no strict 'refs';
$self->$_($args->{$_}) for keys %$args;
};
package Words2;
use Alter ego => {};
sub new {
my $class = shift;
my $self = bless( \ my $o, $class);
my $href = ego( $self);
%$href = @_;
$self;
}
# retrieve values
sub AUTOLOAD {
my $self = shift;
(my $key = $AUTOLOAD) =~ s/.*:://;
ego( $self) -> { $key};
};
1;
What perl version do you have? what version of Scalar::Utils? Plain perl or XS version? |
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