| … | |
… | |
| 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 | |
| 7 | #our $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 |
| 8 | our $SWAP_TIMEOUT = $cf::CFG{swap_timeout} || 300; # number of seconds after which inactive maps get swapped out |
8 | our $SWAP_TIMEOUT = $cf::CFG{swap_timeout} || 300; # number of seconds after which inactive maps get swapped out |
| 9 | our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || .8; # time the map scheduler sleeps between runs |
9 | our $SCHEDULE_INTERVAL = $cf::CFG{schedule_interval} || 2; # time the map scheduler sleeps between runs |
| 10 | our $SAVE_TIMEOUT = $cf::CFG{save_timeout} || 30; # save maps every n seconds |
10 | our $SAVE_TIMEOUT = $cf::CFG{save_timeout} || 30; # save maps every n seconds |
| 11 | our $SWAP_LOAD1 = $cf::CFG{swap_load1} || .1; # start aggressively swapping at this load |
11 | our $SWAP_LOAD1 = $cf::CFG{swap_load1} || .1; # start aggressively swapping at this load |
| 12 | our $SWAP_LOAD2 = $cf::CFG{swap_load2} || .4; # swap as fast as possible at this load |
12 | our $SWAP_LOAD2 = $cf::CFG{swap_load2} || .4; # swap as fast as possible at this load |
| 13 | |
13 | |
| 14 | cf::async_ext { |
14 | cf::async_ext { |
|
|
15 | $Coro::current->{desc} = "startup map scanner"; |
| 15 | $Coro::current->prio (Coro::PRIO_MIN); |
16 | $Coro::current->prio (Coro::PRIO_MIN); |
| 16 | |
17 | |
| 17 | # load the header of swapped-out maps. |
18 | # load the header of swapped-out maps. |
| 18 | # this is not a correctness issue, it simply saves diskspace |
19 | # this is not a correctness issue, it simply saves diskspace |
| 19 | # because old files will get cleaned up on reset time |
20 | # because old files will get cleaned up on reset time |
| … | |
… | |
| 50 | } |
51 | } |
| 51 | } |
52 | } |
| 52 | }; |
53 | }; |
| 53 | |
54 | |
| 54 | our $SCHEDULER = cf::async_ext { |
55 | our $SCHEDULER = cf::async_ext { |
| 55 | my $timer = Coro::Event->timer (after => 1); |
56 | $Coro::current->{desc} = "map scheduler"; |
|
|
57 | $Coro::current->prio (Coro::PRIO_MAX); |
| 56 | |
58 | |
| 57 | while () { |
59 | while () { |
| 58 | $timer->interval ($SCHEDULE_INTERVAL); |
60 | if ($cf::LOADAVG > $SWAP_LOAD2) { |
| 59 | $timer->next unless $cf::LOADAVG > $SWAP_LOAD2; |
61 | Coro::EV::timer_once 0.05; |
|
|
62 | cf::wait_for_tick; |
|
|
63 | } else { |
|
|
64 | Coro::EV::timer_once $SCHEDULE_INTERVAL; |
|
|
65 | } |
| 60 | |
66 | |
| 61 | # this weird form of iteration over values is used because |
67 | # this weird form of iteration over values is used because |
| 62 | # the hash changes underneath us frequently, and for |
68 | # the hash changes underneath us frequently, and for |
| 63 | # keeps a direct reference to the value without (in 5.8 perls) |
69 | # keeps a direct reference to the value without (in 5.8 perls) |
| 64 | # keeping a reference, so this is prone to crashes or worse. |
70 | # keeping a reference, so this is prone to crashes or worse. |
