Given the following code, the runtime and performance depends heavily on where I actually put my poll for new events. If I poll every time through the loop, I get a horrendous performance hit. I can only poll every once in a while by modding against the current iteration, but I'd like to use this in situations where I may not be maintaining an iteration counter or when one doesn't make sense.

Is there a way to simply integrate events into Coro by telling the threading mechanism to poll for new events every n ms or so?

use strict;
use warnings;
use 5.012;

use Coro;
use AnyEvent;
use Coro::AnyEvent;

my $w; $w = AE::timer 0, 1, sub { async { say "timer event" } };

for my $i (1 .. 1000000) {
  my $computation = $i ** $i;
  if ($i % 10000 == 0) {
    say $i;
    # Coro::AnyEvent::poll; # fast - ~200k iterations/sec 
  }
  Coro::AnyEvent::poll; # slow - ~25k iterations/sec
  cede;
}

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In reply to Coro, AnyEvent and performance by mcrose

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