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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.411 by root, Fri Feb 1 15:54:07 2008 UTC vs.
Revision 1.422 by root, Tue Apr 15 20:46:55 2008 UTC

1#
2# This file is part of Deliantra, the Roguelike Realtime MMORPG.
3#
4# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5#
6# Deliantra is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program. If not, see <http://www.gnu.org/licenses/>.
18#
19# The authors can be reached via e-mail to <support@deliantra.net>
20#
21
1package cf; 22package cf;
2 23
3use utf8; 24use utf8;
4use strict; 25use strict;
5 26
6use Symbol; 27use Symbol;
7use List::Util; 28use List::Util;
8use Socket; 29use Socket;
9use EV 1.86; 30use EV 3.2;
10use Opcode; 31use Opcode;
11use Safe; 32use Safe;
12use Safe::Hole; 33use Safe::Hole;
13use Storable (); 34use Storable ();
14 35
15use Coro 4.32 (); 36use Coro 4.50 ();
16use Coro::State; 37use Coro::State;
17use Coro::Handle; 38use Coro::Handle;
18use Coro::EV; 39use Coro::EV;
19use Coro::Timer; 40use Coro::Timer;
20use Coro::Signal; 41use Coro::Signal;
… …
69our $RANDOMDIR = "$LOCALDIR/random"; 90our $RANDOMDIR = "$LOCALDIR/random";
70our $BDBDIR = "$LOCALDIR/db"; 91our $BDBDIR = "$LOCALDIR/db";
71our %RESOURCE; 92our %RESOURCE;
72 93
73our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 94our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
74our $TICK_WATCHER;
75our $AIO_POLL_WATCHER; 95our $AIO_POLL_WATCHER;
76our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 96our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
77our $NEXT_TICK; 97our $NEXT_TICK;
78our $USE_FSYNC = 1; # use fsync to write maps - default off 98our $USE_FSYNC = 1; # use fsync to write maps - default off
79 99
… …
96# used to convert map paths into valid unix filenames by replacing / by ∕ 116# used to convert map paths into valid unix filenames by replacing / by ∕
97our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 117our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
98 118
99our $LOAD; # a number between 0 (idle) and 1 (too many objects) 119our $LOAD; # a number between 0 (idle) and 1 (too many objects)
100our $LOADAVG; # same thing, but with alpha-smoothing 120our $LOADAVG; # same thing, but with alpha-smoothing
121our $JITTER; # average jitter
101our $tick_start; # for load detecting purposes 122our $TICK_START; # for load detecting purposes
102 123
103binmode STDOUT; 124binmode STDOUT;
104binmode STDERR; 125binmode STDERR;
105 126
106# read virtual server time, if available 127# read virtual server time, if available
… …
339 360
340 ! ! $LOCK{$key} 361 ! ! $LOCK{$key}
341} 362}
342 363
343sub freeze_mainloop { 364sub freeze_mainloop {
344 return unless $TICK_WATCHER->is_active; 365 tick_inhibit_inc;
345 366
346 my $guard = Coro::guard { 367 Coro::guard \&tick_inhibit_dec;
347 $TICK_WATCHER->start;
348 };
349 $TICK_WATCHER->stop;
350 $guard
351} 368}
352 369
353=item cf::periodic $interval, $cb 370=item cf::periodic $interval, $cb
354 371
355Like EV::periodic, but randomly selects a starting point so that the actions 372Like EV::periodic, but randomly selects a starting point so that the actions
… …
410 } 427 }
411 } 428 }
412}; 429};
413 430
414sub get_slot($;$$) { 431sub get_slot($;$$) {
432 return if tick_inhibit;
433
415 my ($time, $pri, $name) = @_; 434 my ($time, $pri, $name) = @_;
416 435
417 $time = $TICK * .6 if $time > $TICK * .6; 436 $time = $TICK * .6 if $time > $TICK * .6;
418 my $sig = new Coro::Signal; 437 my $sig = new Coro::Signal;
419 438
… …
456 # this is the main coro, too bad, we have to block 475 # this is the main coro, too bad, we have to block
457 # till the operation succeeds, freezing the server :/ 476 # till the operation succeeds, freezing the server :/
458 477
459 LOG llevError, Carp::longmess "sync job";#d# 478 LOG llevError, Carp::longmess "sync job";#d#
460 479
461 # TODO: use suspend/resume instead
462 # (but this is cancel-safe)
463 my $freeze_guard = freeze_mainloop; 480 my $freeze_guard = freeze_mainloop;
464 481
465 my $busy = 1; 482 my $busy = 1;
466 my @res; 483 my @res;
467 484
… …
478 } else { 495 } else {
479 EV::loop EV::LOOP_ONESHOT; 496 EV::loop EV::LOOP_ONESHOT;
480 } 497 }
481 } 498 }
482 499
483 $time = EV::time - $time; 500 my $time = EV::time - $time;
484 501
485 LOG llevError | logBacktrace, Carp::longmess "long sync job"
486 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
487
488 $tick_start += $time; # do not account sync jobs to server load 502 $TICK_START += $time; # do not account sync jobs to server load
489 503
490 wantarray ? @res : $res[0] 504 wantarray ? @res : $res[0]
491 } else { 505 } else {
492 # we are in another coroutine, how wonderful, everything just works 506 # we are in another coroutine, how wonderful, everything just works
493 507
… …
535 reset_signals; 549 reset_signals;
536 &$cb 550 &$cb
537 }, @args; 551 }, @args;
538 552
539 wantarray ? @res : $res[-1] 553 wantarray ? @res : $res[-1]
554}
555
556=item $coin = coin_from_name $name
557
558=cut
559
560our %coin_alias = (
561 "silver" => "silvercoin",
562 "silvercoin" => "silvercoin",
563 "silvercoins" => "silvercoin",
564 "gold" => "goldcoin",
565 "goldcoin" => "goldcoin",
566 "goldcoins" => "goldcoin",
567 "platinum" => "platinacoin",
568 "platinumcoin" => "platinacoin",
569 "platinumcoins" => "platinacoin",
570 "platina" => "platinacoin",
571 "platinacoin" => "platinacoin",
572 "platinacoins" => "platinacoin",
573 "royalty" => "royalty",
574 "royalties" => "royalty",
575);
576
577sub coin_from_name($) {
578 $coin_alias{$_[0]}
579 ? cf::arch::find $coin_alias{$_[0]}
580 : undef
540} 581}
541 582
542=item $value = cf::db_get $family => $key 583=item $value = cf::db_get $family => $key
543 584
544Returns a single value from the environment database. 585Returns a single value from the environment database.
… …
1434 1475
1435 return if $pl->{deny_save}; 1476 return if $pl->{deny_save};
1436 1477
1437 aio_mkdir playerdir $pl, 0770; 1478 aio_mkdir playerdir $pl, 0770;
1438 $pl->{last_save} = $cf::RUNTIME; 1479 $pl->{last_save} = $cf::RUNTIME;
1480
1481 cf::get_slot 0.01;
1439 1482
1440 $pl->save_pl ($path); 1483 $pl->save_pl ($path);
1441 cf::cede_to_tick; 1484 cf::cede_to_tick;
1442} 1485}
1443 1486
… …
1736our $MAX_RESET = 3600; 1779our $MAX_RESET = 3600;
1737our $DEFAULT_RESET = 3000; 1780our $DEFAULT_RESET = 3000;
1738 1781
1739sub generate_random_map { 1782sub generate_random_map {
1740 my ($self, $rmp) = @_; 1783 my ($self, $rmp) = @_;
1784
1785 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1786
1741 # mit "rum" bekleckern, nicht 1787 # mit "rum" bekleckern, nicht
1742 $self->_create_random_map ( 1788 $self->_create_random_map (
1743 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1789 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1744 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1790 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1745 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1791 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1867 1913
1868# the temporary/swap location 1914# the temporary/swap location
1869sub save_path { 1915sub save_path {
1870 my ($self) = @_; 1916 my ($self) = @_;
1871 1917
1872 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1918 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1873 "$TMPDIR/$path.map" 1919 "$TMPDIR/$path.map"
1874} 1920}
1875 1921
1876# the unique path, undef == no special unique path 1922# the unique path, undef == no special unique path
1877sub uniq_path { 1923sub uniq_path {
1878 my ($self) = @_; 1924 my ($self) = @_;
1879 1925
1880 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1926 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1881 "$UNIQUEDIR/$path" 1927 "$UNIQUEDIR/$path"
1882} 1928}
1883 1929
1884# and all this just because we cannot iterate over 1930# and all this just because we cannot iterate over
1885# all maps in C++... 1931# all maps in C++...
… …
2071 } 2117 }
2072 2118
2073 $self->{last_save} = $cf::RUNTIME; 2119 $self->{last_save} = $cf::RUNTIME;
2074 $self->last_access ($cf::RUNTIME); 2120 $self->last_access ($cf::RUNTIME);
2075 2121
2076 $self->in_memory (cf::MAP_IN_MEMORY); 2122 $self->in_memory (cf::MAP_ACTIVE);
2077 } 2123 }
2078 2124
2079 $self->post_load; 2125 $self->post_load;
2080} 2126}
2081 2127
… …
2139 my ($path, $origin, $load) = @_; 2185 my ($path, $origin, $load) = @_;
2140 2186
2141 $path = normalise $path, $origin && $origin->{path}; 2187 $path = normalise $path, $origin && $origin->{path};
2142 2188
2143 if (my $map = $cf::MAP{$path}) { 2189 if (my $map = $cf::MAP{$path}) {
2144 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY; 2190 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2145 } 2191 }
2146 2192
2147 $MAP_PREFETCH{$path} |= $load; 2193 $MAP_PREFETCH{$path} |= $load;
2148 2194
2149 $MAP_PREFETCHER ||= cf::async { 2195 $MAP_PREFETCHER ||= cf::async {
… …
2186 cf::async { 2232 cf::async {
2187 $Coro::current->{desc} = "map player save"; 2233 $Coro::current->{desc} = "map player save";
2188 $_->contr->save for $self->players; 2234 $_->contr->save for $self->players;
2189 }; 2235 };
2190 2236
2237 cf::get_slot 0.02;
2238
2191 if ($uniq) { 2239 if ($uniq) {
2192 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2240 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2193 $self->_save_objects ($uniq, cf::IO_UNIQUES); 2241 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2194 } else { 2242 } else {
2195 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 2243 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
… …
2203 $self->save; 2251 $self->save;
2204 2252
2205 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2253 my $lock = cf::lock_acquire "map_data:$self->{path}";
2206 2254
2207 return if $self->players; 2255 return if $self->players;
2208 return if $self->in_memory != cf::MAP_IN_MEMORY; 2256 return if $self->in_memory != cf::MAP_ACTIVE;
2209 return if $self->{deny_save}; 2257 return if $self->{deny_save};
2210 2258
2211 $self->in_memory (cf::MAP_SWAPPED); 2259 $self->in_memory (cf::MAP_SWAPPED);
2212 2260
2213 $self->deactivate; 2261 $self->deactivate;
… …
2331 2379
2332sub unique_maps() { 2380sub unique_maps() {
2333 [ 2381 [
2334 map { 2382 map {
2335 utf8::decode $_; 2383 utf8::decode $_;
2336 /\.map$/ 2384 s/\.map$//; # TODO future compatibility hack
2385 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2386 ? ()
2337 ? normalise $_ 2387 : normalise $_
2338 : ()
2339 } @{ aio_readdir $UNIQUEDIR or [] } 2388 } @{ aio_readdir $UNIQUEDIR or [] }
2340 ] 2389 ]
2341} 2390}
2342 2391
2343package cf;
2344
2345=back 2392=back
2346 2393
2347=head3 cf::object 2394=head3 cf::object
2348 2395
2349=cut 2396=cut
… …
2352 2399
2353=over 4 2400=over 4
2354 2401
2355=item $ob->inv_recursive 2402=item $ob->inv_recursive
2356 2403
2357Returns the inventory of the object _and_ their inventories, recursively. 2404Returns the inventory of the object I<and> their inventories, recursively,
2405but I<not> the object itself.
2358 2406
2359=cut 2407=cut
2360 2408
2361sub inv_recursive_; 2409sub inv_recursive_;
2362sub inv_recursive_ { 2410sub inv_recursive_ {
… …
2367 inv_recursive_ inv $_[0] 2415 inv_recursive_ inv $_[0]
2368} 2416}
2369 2417
2370=item $ref = $ob->ref 2418=item $ref = $ob->ref
2371 2419
2372creates and returns a persistent reference to an objetc that can be stored as a string. 2420Creates and returns a persistent reference to an object that can be stored as a string.
2373 2421
2374=item $ob = cf::object::deref ($refstring) 2422=item $ob = cf::object::deref ($refstring)
2375 2423
2376returns the objetc referenced by refstring. may return undef when it cnanot find the object, 2424returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2377even if the object actually exists. May block. 2425even if the object actually exists. May block.
… …
2651 $rmp->{origin_y} = $exit->y; 2699 $rmp->{origin_y} = $exit->y;
2652 } 2700 }
2653 2701
2654 $rmp->{random_seed} ||= $exit->random_seed; 2702 $rmp->{random_seed} ||= $exit->random_seed;
2655 2703
2656 my $data = cf::encode_json $rmp; 2704 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2657 my $md5 = Digest::MD5::md5_hex $data; 2705 my $md5 = Digest::MD5::md5_hex $data;
2658 my $meta = "$RANDOMDIR/$md5.meta"; 2706 my $meta = "$RANDOMDIR/$md5.meta";
2659 2707
2660 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { 2708 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2661 aio_write $fh, 0, (length $data), $data, 0; 2709 aio_write $fh, 0, (length $data), $data, 0;
… …
3349 3397
3350 reload_config; 3398 reload_config;
3351 db_init; 3399 db_init;
3352 load_extensions; 3400 load_extensions;
3353 3401
3354 $TICK_WATCHER->start;
3355 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3402 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3403 evthread_start IO::AIO::poll_fileno;
3356 EV::loop; 3404 EV::loop;
3357} 3405}
3358 3406
3359############################################################################# 3407#############################################################################
3360# initialisation and cleanup 3408# initialisation and cleanup
… …
3367 cf::cleanup "SIG$signal"; 3415 cf::cleanup "SIG$signal";
3368 }; 3416 };
3369 } 3417 }
3370} 3418}
3371 3419
3372sub write_runtime { 3420sub write_runtime_sync {
3373 my $runtime = "$LOCALDIR/runtime"; 3421 my $runtime = "$LOCALDIR/runtime";
3374 3422
3375 # first touch the runtime file to show we are still running: 3423 # first touch the runtime file to show we are still running:
3376 # the fsync below can take a very very long time. 3424 # the fsync below can take a very very long time.
3377 3425
… …
3403 and return; 3451 and return;
3404 3452
3405 warn "runtime file written.\n"; 3453 warn "runtime file written.\n";
3406 3454
3407 1 3455 1
3456}
3457
3458our $uuid_lock;
3459our $uuid_skip;
3460
3461sub write_uuid_sync($) {
3462 $uuid_skip ||= $_[0];
3463
3464 return if $uuid_lock;
3465 local $uuid_lock = 1;
3466
3467 my $uuid = "$LOCALDIR/uuid";
3468
3469 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3470 or return;
3471
3472 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
3473 $uuid_skip = 0;
3474
3475 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3476 and return;
3477
3478 # always fsync - this file is important
3479 aio_fsync $fh
3480 and return;
3481
3482 close $fh
3483 or return;
3484
3485 aio_rename "$uuid~", $uuid
3486 and return;
3487
3488 warn "uuid file written ($value).\n";
3489
3490 1
3491
3492}
3493
3494sub write_uuid($$) {
3495 my ($skip, $sync) = @_;
3496
3497 $sync ? write_uuid_sync $skip
3498 : async { write_uuid_sync $skip };
3408} 3499}
3409 3500
3410sub emergency_save() { 3501sub emergency_save() {
3411 my $freeze_guard = cf::freeze_mainloop; 3502 my $freeze_guard = cf::freeze_mainloop;
3412 3503
… …
3434 warn "end emergency map save\n"; 3525 warn "end emergency map save\n";
3435 3526
3436 warn "begin emergency database checkpoint\n"; 3527 warn "begin emergency database checkpoint\n";
3437 BDB::db_env_txn_checkpoint $DB_ENV; 3528 BDB::db_env_txn_checkpoint $DB_ENV;
3438 warn "end emergency database checkpoint\n"; 3529 warn "end emergency database checkpoint\n";
3530
3531 warn "begin write uuid\n";
3532 write_uuid_sync 1;
3533 warn "end write uuid\n";
3439 }; 3534 };
3440 3535
3441 warn "leave emergency perl save\n"; 3536 warn "leave emergency perl save\n";
3442} 3537}
3443 3538
… …
3458 warn "reloading..."; 3553 warn "reloading...";
3459 3554
3460 warn "entering sync_job"; 3555 warn "entering sync_job";
3461 3556
3462 cf::sync_job { 3557 cf::sync_job {
3463 cf::write_runtime; # external watchdog should not bark 3558 cf::write_runtime_sync; # external watchdog should not bark
3464 cf::emergency_save; 3559 cf::emergency_save;
3465 cf::write_runtime; # external watchdog should not bark 3560 cf::write_runtime_sync; # external watchdog should not bark
3466 3561
3467 warn "syncing database to disk"; 3562 warn "syncing database to disk";
3468 BDB::db_env_txn_checkpoint $DB_ENV; 3563 BDB::db_env_txn_checkpoint $DB_ENV;
3469 3564
3470 # if anything goes wrong in here, we should simply crash as we already saved 3565 # if anything goes wrong in here, we should simply crash as we already saved
… …
3595 3690
3596our @WAIT_FOR_TICK; 3691our @WAIT_FOR_TICK;
3597our @WAIT_FOR_TICK_BEGIN; 3692our @WAIT_FOR_TICK_BEGIN;
3598 3693
3599sub wait_for_tick { 3694sub wait_for_tick {
3600 return unless $TICK_WATCHER->is_active; 3695 return if tick_inhibit;
3601 return if $Coro::current == $Coro::main; 3696 return if $Coro::current == $Coro::main;
3602 3697
3603 my $signal = new Coro::Signal; 3698 my $signal = new Coro::Signal;
3604 push @WAIT_FOR_TICK, $signal; 3699 push @WAIT_FOR_TICK, $signal;
3605 $signal->wait; 3700 $signal->wait;
3606} 3701}
3607 3702
3608sub wait_for_tick_begin { 3703sub wait_for_tick_begin {
3609 return unless $TICK_WATCHER->is_active; 3704 return if tick_inhibit;
3610 return if $Coro::current == $Coro::main; 3705 return if $Coro::current == $Coro::main;
3611 3706
3612 my $signal = new Coro::Signal; 3707 my $signal = new Coro::Signal;
3613 push @WAIT_FOR_TICK_BEGIN, $signal; 3708 push @WAIT_FOR_TICK_BEGIN, $signal;
3614 $signal->wait; 3709 $signal->wait;
3615} 3710}
3616 3711
3617$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub { 3712sub tick {
3618 if ($Coro::current != $Coro::main) { 3713 if ($Coro::current != $Coro::main) {
3619 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3714 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3620 unless ++$bug_warning > 10; 3715 unless ++$bug_warning > 10;
3621 return; 3716 return;
3622 } 3717 }
3623 3718
3624 $NOW = $tick_start = EV::now;
3625
3626 cf::server_tick; # one server iteration 3719 cf::server_tick; # one server iteration
3627
3628 $RUNTIME += $TICK;
3629 $NEXT_TICK = $_[0]->at;
3630 3720
3631 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3721 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3632 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.; 3722 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
3633 Coro::async_pool { 3723 Coro::async_pool {
3634 $Coro::current->{desc} = "runtime saver"; 3724 $Coro::current->{desc} = "runtime saver";
3635 write_runtime 3725 write_runtime_sync
3636 or warn "ERROR: unable to write runtime file: $!"; 3726 or warn "ERROR: unable to write runtime file: $!";
3637 }; 3727 };
3638 } 3728 }
3639 3729
3640 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3730 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
… …
3642 } 3732 }
3643 while (my $sig = shift @WAIT_FOR_TICK) { 3733 while (my $sig = shift @WAIT_FOR_TICK) {
3644 $sig->send; 3734 $sig->send;
3645 } 3735 }
3646 3736
3647 $LOAD = ($NOW - $tick_start) / $TICK; 3737 $LOAD = ($NOW - $TICK_START) / $TICK;
3648 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; 3738 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3649 3739
3650 _post_tick; 3740 if (0) {
3651}; 3741 if ($NEXT_TICK) {
3652$TICK_WATCHER->priority (EV::MAXPRI); 3742 my $jitter = $TICK_START - $NEXT_TICK;
3743 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
3744 warn "jitter $JITTER\n";#d#
3745 }
3746 }
3747}
3653 3748
3654{ 3749{
3655 # configure BDB 3750 # configure BDB
3656 3751
3657 BDB::min_parallel 8; 3752 BDB::min_parallel 8;

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