This looks wrong: 
my @wready = $sel->can_write(0.0001);
my $wsocket;
foreach $wsocket (@ready) {
    gen_chars($wsocket);
}

[download]
Replace @ready with @wready, perhaps?

In reply to Re: chargen program is too slow / IO::Select socket handle outputting timing issue by bart
in thread chargen program is too slow / IO::Select socket handle outputting timing issue by kabeldag

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