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/cvs/deliantra/server/ext/map-scheduler.ext
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Comparing deliantra/server/ext/map-scheduler.ext (file contents):
Revision 1.23 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.26 by root, Tue Jan 23 01:17:08 2007 UTC

… …
2 2
3# this extension swaps out maps and resets them, in essence managing 3# this extension swaps out maps and resets them, in essence managing
4# the reset/swap policy of the server. 4# the reset/swap policy of the server.
5# it also contains the map prefetching logic 5# it also contains the map prefetching logic
6 6
7our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu 7#our $DEACTIVATE_TIMEOUT = 20; # number of seconds after which maps get deactivated to save cpu
8our $SWAP_TIMEOUT = 35; # number of seconds after which maps inactive get swapped out 8our $SWAP_TIMEOUT = 35; # number of seconds after which maps inactive get swapped out
9our $SCHEDULE_INTERVAL = 2; # time the map scheduler sleeps between runs 9our $SCHEDULE_INTERVAL = 2; # time the map scheduler sleeps between runs
10our $SAVE_TIMEOUT = 20; # save maps every n seconds 10our $SAVE_TIMEOUT = 20; # save maps every n seconds
11our $MAX_ACTIVES = $cf::CFG{max_actives} || 200000; # swap aggressively when > this many objects are active
11 12
12cf::async_ext { 13cf::async_ext {
13 $Coro::current->prio (Coro::PRIO_MIN); 14 $Coro::current->prio (Coro::PRIO_MIN);
14 # load the header of swapped-out maps. 15 # load the header of swapped-out maps.
15 # this is not a correctness issue, it simply saves diskspace 16 # this is not a correctness issue, it simply saves diskspace
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29 30
30 #TODO: should also preload random maps... 31 #TODO: should also preload random maps...
31}; 32};
32 33
33our $SCHEDULER = cf::async_ext { 34our $SCHEDULER = cf::async_ext {
35 my $schedule_interval = Coro::Event->timer (after => 1, interval => $SCHEDULE_INTERVAL);
34 while () { 36 while () {
35 Coro::Timer::sleep $SCHEDULE_INTERVAL; 37 $schedule_interval->next;
36 38
37 # this weird form of iteration over values is used because 39 # this weird form of iteration over values is used because
38 # the hash changes underneath us frequently, and for 40 # the hash changes underneath us frequently, and for
39 # keeps a direct reference to the value without (in 5.8 perls) 41 # keeps a direct reference to the value without (in 5.8 perls)
40 # keeping a reference, so this is prone to crashes or worse. 42 # keeping a reference, so this is prone to crashes or worse.
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52# delete $map->{active}; 54# delete $map->{active};
53# } 55# }
54 if ($map->should_reset) { 56 if ($map->should_reset) {
55 $map->reset; 57 $map->reset;
56 } elsif ($map->in_memory == cf::MAP_IN_MEMORY) { 58 } elsif ($map->in_memory == cf::MAP_IN_MEMORY) {
59 my $max_idle = cf::object::actives_size > $MAX_ACTIVES ? 1 : $SWAP_TIMEOUT;
57 if ($map->last_access + $SWAP_TIMEOUT <= $cf::RUNTIME && !$map->players) { 60 if ($map->last_access + $max_idle <= $cf::RUNTIME && !$map->players) {
61 $map->swap_out;
58 $cf::WAIT_FOR_TICK_ONE->wait; 62 $cf::WAIT_FOR_TICK_ONE->wait;
59 $map->swap_out;
60 } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) { 63 } elsif ($map->{last_save} + $SAVE_TIMEOUT <= $cf::RUNTIME) {
64 $map->save;
61 $cf::WAIT_FOR_TICK_ONE->wait; 65 $cf::WAIT_FOR_TICK_ONE->wait;
62 $map->save;
63 } 66 }
64 } 67 }
65 }; 68 };
66 warn $@ if $@; 69 warn $@ if $@;
67 Coro::cede; 70 Coro::cede;

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