| 1 |
root |
1.1 |
#!/usr/bin/perl |
| 2 |
|
|
|
| 3 |
|
|
# ->resume is not exactly cheap (it saves/restores a LOT |
| 4 |
|
|
# of global variables), but shouldn't be slow. just to show |
| 5 |
|
|
# how fast it is, this little proggie compares a normal subroutine |
| 6 |
|
|
# call with two calls of transfer in a loop. |
| 7 |
|
|
|
| 8 |
|
|
use Coro; |
| 9 |
|
|
use Benchmark; |
| 10 |
|
|
|
| 11 |
|
|
$a = bless {}, main::; |
| 12 |
|
|
|
| 13 |
|
|
# do something similar, switch two global vars and return something |
| 14 |
|
|
|
| 15 |
|
|
sub a { |
| 16 |
|
|
$old = $current; |
| 17 |
|
|
$current = $_[0]; |
| 18 |
|
|
} |
| 19 |
|
|
|
| 20 |
|
|
$b = new Coro sub { |
| 21 |
|
|
# do a little unrolling... |
| 22 |
|
|
while() { |
| 23 |
|
|
$Coro::main->resume; $Coro::main->resume; $Coro::main->resume; |
| 24 |
|
|
} |
| 25 |
|
|
}; |
| 26 |
|
|
|
| 27 |
|
|
$b->resume; # the first resume is slow because it allocates all the memory |
| 28 |
|
|
|
| 29 |
|
|
$main = $Coro::main; |
| 30 |
|
|
|
| 31 |
root |
1.2 |
#*transfer = \&Coro::_transfer; |
| 32 |
|
|
sub transfer { Coro::_transfer($_[0], $_[1]) } |
| 33 |
root |
1.1 |
|
| 34 |
|
|
$c = Coro::_newprocess { |
| 35 |
|
|
while() { |
| 36 |
|
|
transfer($c, $main); transfer($c, $main); transfer($c, $main); |
| 37 |
|
|
} |
| 38 |
|
|
}; |
| 39 |
|
|
|
| 40 |
|
|
transfer($main, $c); |
| 41 |
|
|
|
| 42 |
|
|
timethese 100000, { |
| 43 |
|
|
method => '$a->a; $a->a; $a->a; $a->a', |
| 44 |
|
|
resume => '$b->resume; $b->resume', |
| 45 |
|
|
transfer => 'transfer($main, $c); transfer($main, $c)', |
| 46 |
|
|
}; |
