| 1 | package transferqueue; |
1 | package transferqueue; |
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2 | |
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3 | my @reserve = ( |
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4 | [ 1_200_000, 2], |
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5 | [ 8_000_000, 1], |
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6 | [ 75_000_000, 1], |
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7 | ); |
| 2 | |
8 | |
| 3 | sub new { |
9 | sub new { |
| 4 | my $class = shift; |
10 | my $class = shift; |
| 5 | bless { |
11 | my $self = bless { |
| 6 | slots => $_[0], |
12 | slots => $_[0], |
| 7 | lastspb => 0, |
13 | lastspb => 0, |
| 8 | avgspb => 0, |
14 | avgspb => 0, |
| 9 | }, $class; |
15 | }, $class; |
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16 | $self->{reschedule} = Event->timer( |
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17 | after => 10, |
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18 | interval => 3, |
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19 | cb => sub { $self->wake_next }, |
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20 | ); |
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21 | $self; |
| 10 | } |
22 | } |
| 11 | |
23 | |
| 12 | sub start_transfer { |
24 | sub start_transfer { |
| 13 | my $self = shift; |
25 | my $self = shift; |
| 14 | my $size = $_[0]; |
26 | my $size = $_[0]; |
| 15 | |
27 | |
| 16 | my $transfer = bless { |
28 | my $transfer = bless { |
| 17 | queue => $self, |
29 | queue => $self, |
| 18 | time => $::NOW, |
30 | time => $::NOW, |
| 19 | size => $size, |
31 | size => $size, |
| 20 | coro => $Coro::current, |
32 | coro => $Coro::current, |
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33 | started => 0, |
| 21 | }, transfer::; |
34 | }, transfer::; |
| 22 | |
35 | |
| 23 | push @{$self->{wait}}, $transfer; |
36 | push @{$self->{wait}}, $transfer; |
| 24 | Scalar::Util::weaken($self->{wait}[-1]); |
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| 25 | |
37 | |
| 26 | $self->wake_next; |
38 | $self->wake_next; |
| 27 | |
39 | |
| 28 | $trans; |
40 | $transfer; |
| 29 | } |
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| 30 | |
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| 31 | sub wake_next { |
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| 32 | my $self = shift; |
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| 33 | |
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| 34 | $self->sort; |
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| 35 | |
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| 36 | while($self->{slots} && @{$self->{wait}}) { |
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| 37 | my $transfer = shift @{$self->{wait}}; |
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| 38 | if ($transfer) { |
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| 39 | $self->{lastspb} = $transfer->{spb}; |
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| 40 | $self->{avgspb} ||= $transfer->{spb}; |
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| 41 | $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05; |
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| 42 | $transfer->wake; |
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| 43 | last; |
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| 44 | } |
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| 45 | } |
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| 46 | } |
41 | } |
| 47 | |
42 | |
| 48 | sub sort { |
43 | sub sort { |
| 49 | my @queue = grep $_, @{$_[0]{wait}}; |
44 | my @queue = grep $_, @{$_[0]{wait}}; |
| 50 | |
45 | |
| 51 | $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue; |
46 | $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue; |
| 52 | |
47 | |
| 53 | $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue]; |
48 | $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue]; |
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49 | |
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50 | Scalar::Util::weaken $_ for @{$_[0]{wait}}; |
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51 | } |
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52 | |
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53 | sub wake_next { |
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54 | my $self = shift; |
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55 | |
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56 | $self->sort; |
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57 | |
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58 | while (@{$self->{wait}}) { |
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59 | my $size = $self->{wait}[0]{size}; |
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60 | my $min = 0; |
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61 | for (@reserve) { |
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62 | last if $size <= $_->[0]; |
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63 | $min += $_->[1]; |
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64 | } |
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65 | last unless $self->{slots} > $min; |
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66 | my $transfer = shift @{$self->{wait}}; |
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67 | $self->{lastspb} = $transfer->{spb}; |
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68 | $self->{avgspb} = $self->{avgspb} * 0.99 + $transfer->{spb} * 0.01; |
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69 | $self->{started}++; |
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70 | $transfer->wake; |
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71 | last; |
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72 | } |
| 54 | } |
73 | } |
| 55 | |
74 | |
| 56 | sub waiters { |
75 | sub waiters { |
| 57 | $_[0]->sort; |
76 | $_[0]->sort; |
| 58 | @{$_[0]{wait}}; |
77 | @{$_[0]{wait}}; |
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78 | } |
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79 | |
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80 | sub DESTROY { |
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81 | my $self = shift; |
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82 | |
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83 | $self->{reschedule}->cancel; |
| 59 | } |
84 | } |
| 60 | |
85 | |
| 61 | package transfer; |
86 | package transfer; |
| 62 | |
87 | |
| 63 | use Coro::Timer (); |
88 | use Coro::Timer (); |
