in reply to Memory overhead of blessed hashes
I tried the four variants on my Linux box (uncomment the one you want):
#!/usr/bin/perl use strict; use warnings; my @objs; for my $i (1 .. 1_000_000) { # push @objs, { id => $i, name => "Object of class", number => int + rand 10 }; # push @objs, bless { id => $i, name => "Object of class", number +=> int rand 10 }, 'My::Class'; # push @objs, [$i, 'Object of class', int rand 10]; push @objs, bless [$i, 'Object of class', int rand 10], 'My::Class +'; } print `ps -v | grep ^$$`;
It seems bless doesn't really change anything, but a hash versus array does.
23235 pts/0 S+ 0:00 0 2020 371111 359628 1.1 /usr/bin/pe +rl ./1.pl 23225 pts/0 S+ 0:00 0 2020 261035 249668 0.7 /usr/bin/pe +rl ./1.pl
map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]
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Re^2: Memory overhead of blessed hashes
by LanX (Saint) on Feb 09, 2021 at 16:21 UTC | |
by jcb (Parson) on Feb 10, 2021 at 00:06 UTC | |
by LanX (Saint) on Feb 10, 2021 at 00:55 UTC | |
by ikegami (Patriarch) on Feb 11, 2021 at 06:28 UTC |
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Seekers of Perl Wisdom