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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.410 by root, Tue Jan 15 12:02:24 2008 UTC vs.
Revision 1.420 by root, Tue Apr 15 14:21:04 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.
… …
1316 my $msg = $@ ? "$v->{path}: $@\n" 1357 my $msg = $@ ? "$v->{path}: $@\n"
1317 : "$v->{base}: extension inactive.\n"; 1358 : "$v->{base}: extension inactive.\n";
1318 1359
1319 if (exists $v->{meta}{mandatory}) { 1360 if (exists $v->{meta}{mandatory}) {
1320 warn $msg; 1361 warn $msg;
1321 warn "mandatory extension failed to load, exiting.\n"; 1362 cf::cleanup "mandatory extension failed to load, exiting.";
1322 exit 1;
1323 } 1363 }
1324 1364
1325 warn $msg; 1365 warn $msg;
1326 } 1366 }
1327 1367
… …
1435 1475
1436 return if $pl->{deny_save}; 1476 return if $pl->{deny_save};
1437 1477
1438 aio_mkdir playerdir $pl, 0770; 1478 aio_mkdir playerdir $pl, 0770;
1439 $pl->{last_save} = $cf::RUNTIME; 1479 $pl->{last_save} = $cf::RUNTIME;
1480
1481 cf::get_slot 0.01;
1440 1482
1441 $pl->save_pl ($path); 1483 $pl->save_pl ($path);
1442 cf::cede_to_tick; 1484 cf::cede_to_tick;
1443} 1485}
1444 1486
… …
1737our $MAX_RESET = 3600; 1779our $MAX_RESET = 3600;
1738our $DEFAULT_RESET = 3000; 1780our $DEFAULT_RESET = 3000;
1739 1781
1740sub generate_random_map { 1782sub generate_random_map {
1741 my ($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
1742 # mit "rum" bekleckern, nicht 1787 # mit "rum" bekleckern, nicht
1743 $self->_create_random_map ( 1788 $self->_create_random_map (
1744 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1789 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1745 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1790 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1746 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1791 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1868 1913
1869# the temporary/swap location 1914# the temporary/swap location
1870sub save_path { 1915sub save_path {
1871 my ($self) = @_; 1916 my ($self) = @_;
1872 1917
1873 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1918 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1874 "$TMPDIR/$path.map" 1919 "$TMPDIR/$path.map"
1875} 1920}
1876 1921
1877# the unique path, undef == no special unique path 1922# the unique path, undef == no special unique path
1878sub uniq_path { 1923sub uniq_path {
1879 my ($self) = @_; 1924 my ($self) = @_;
1880 1925
1881 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1926 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1882 "$UNIQUEDIR/$path" 1927 "$UNIQUEDIR/$path"
1883} 1928}
1884 1929
1885# and all this just because we cannot iterate over 1930# and all this just because we cannot iterate over
1886# all maps in C++... 1931# all maps in C++...
… …
2072 } 2117 }
2073 2118
2074 $self->{last_save} = $cf::RUNTIME; 2119 $self->{last_save} = $cf::RUNTIME;
2075 $self->last_access ($cf::RUNTIME); 2120 $self->last_access ($cf::RUNTIME);
2076 2121
2077 $self->in_memory (cf::MAP_IN_MEMORY); 2122 $self->in_memory (cf::MAP_ACTIVE);
2078 } 2123 }
2079 2124
2080 $self->post_load; 2125 $self->post_load;
2081} 2126}
2082 2127
… …
2140 my ($path, $origin, $load) = @_; 2185 my ($path, $origin, $load) = @_;
2141 2186
2142 $path = normalise $path, $origin && $origin->{path}; 2187 $path = normalise $path, $origin && $origin->{path};
2143 2188
2144 if (my $map = $cf::MAP{$path}) { 2189 if (my $map = $cf::MAP{$path}) {
2145 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY; 2190 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2146 } 2191 }
2147 2192
2148 $MAP_PREFETCH{$path} |= $load; 2193 $MAP_PREFETCH{$path} |= $load;
2149 2194
2150 $MAP_PREFETCHER ||= cf::async { 2195 $MAP_PREFETCHER ||= cf::async {
… …
2187 cf::async { 2232 cf::async {
2188 $Coro::current->{desc} = "map player save"; 2233 $Coro::current->{desc} = "map player save";
2189 $_->contr->save for $self->players; 2234 $_->contr->save for $self->players;
2190 }; 2235 };
2191 2236
2237 cf::get_slot 0.02;
2238
2192 if ($uniq) { 2239 if ($uniq) {
2193 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2240 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2194 $self->_save_objects ($uniq, cf::IO_UNIQUES); 2241 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2195 } else { 2242 } else {
2196 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 2243 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
… …
2204 $self->save; 2251 $self->save;
2205 2252
2206 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2253 my $lock = cf::lock_acquire "map_data:$self->{path}";
2207 2254
2208 return if $self->players; 2255 return if $self->players;
2209 return if $self->in_memory != cf::MAP_IN_MEMORY; 2256 return if $self->in_memory != cf::MAP_ACTIVE;
2210 return if $self->{deny_save}; 2257 return if $self->{deny_save};
2211 2258
2212 $self->in_memory (cf::MAP_SWAPPED); 2259 $self->in_memory (cf::MAP_SWAPPED);
2213 2260
2214 $self->deactivate; 2261 $self->deactivate;
… …
2332 2379
2333sub unique_maps() { 2380sub unique_maps() {
2334 [ 2381 [
2335 map { 2382 map {
2336 utf8::decode $_; 2383 utf8::decode $_;
2337 /\.map$/ 2384 s/\.map$//; # TODO future compatibility hack
2385 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2386 ? ()
2338 ? normalise $_ 2387 : normalise $_
2339 : ()
2340 } @{ aio_readdir $UNIQUEDIR or [] } 2388 } @{ aio_readdir $UNIQUEDIR or [] }
2341 ] 2389 ]
2342} 2390}
2343 2391
2344package cf;
2345
2346=back 2392=back
2347 2393
2348=head3 cf::object 2394=head3 cf::object
2349 2395
2350=cut 2396=cut
… …
2353 2399
2354=over 4 2400=over 4
2355 2401
2356=item $ob->inv_recursive 2402=item $ob->inv_recursive
2357 2403
2358Returns 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.
2359 2406
2360=cut 2407=cut
2361 2408
2362sub inv_recursive_; 2409sub inv_recursive_;
2363sub inv_recursive_ { 2410sub inv_recursive_ {
… …
2368 inv_recursive_ inv $_[0] 2415 inv_recursive_ inv $_[0]
2369} 2416}
2370 2417
2371=item $ref = $ob->ref 2418=item $ref = $ob->ref
2372 2419
2373creates 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.
2374 2421
2375=item $ob = cf::object::deref ($refstring) 2422=item $ob = cf::object::deref ($refstring)
2376 2423
2377returns 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,
2378even if the object actually exists. May block. 2425even if the object actually exists. May block.
… …
3350 3397
3351 reload_config; 3398 reload_config;
3352 db_init; 3399 db_init;
3353 load_extensions; 3400 load_extensions;
3354 3401
3355 $TICK_WATCHER->start;
3356 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3402 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3403 evthread_start IO::AIO::poll_fileno;
3357 EV::loop; 3404 EV::loop;
3358} 3405}
3359 3406
3360############################################################################# 3407#############################################################################
3361# initialisation and cleanup 3408# initialisation and cleanup
… …
3368 cf::cleanup "SIG$signal"; 3415 cf::cleanup "SIG$signal";
3369 }; 3416 };
3370 } 3417 }
3371} 3418}
3372 3419
3373sub write_runtime { 3420sub write_runtime_sync {
3374 my $runtime = "$LOCALDIR/runtime"; 3421 my $runtime = "$LOCALDIR/runtime";
3375 3422
3376 # first touch the runtime file to show we are still running: 3423 # first touch the runtime file to show we are still running:
3377 # the fsync below can take a very very long time. 3424 # the fsync below can take a very very long time.
3378 3425
… …
3404 and return; 3451 and return;
3405 3452
3406 warn "runtime file written.\n"; 3453 warn "runtime file written.\n";
3407 3454
3408 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 };
3409} 3499}
3410 3500
3411sub emergency_save() { 3501sub emergency_save() {
3412 my $freeze_guard = cf::freeze_mainloop; 3502 my $freeze_guard = cf::freeze_mainloop;
3413 3503
… …
3435 warn "end emergency map save\n"; 3525 warn "end emergency map save\n";
3436 3526
3437 warn "begin emergency database checkpoint\n"; 3527 warn "begin emergency database checkpoint\n";
3438 BDB::db_env_txn_checkpoint $DB_ENV; 3528 BDB::db_env_txn_checkpoint $DB_ENV;
3439 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";
3440 }; 3534 };
3441 3535
3442 warn "leave emergency perl save\n"; 3536 warn "leave emergency perl save\n";
3443} 3537}
3444 3538
… …
3459 warn "reloading..."; 3553 warn "reloading...";
3460 3554
3461 warn "entering sync_job"; 3555 warn "entering sync_job";
3462 3556
3463 cf::sync_job { 3557 cf::sync_job {
3464 cf::write_runtime; # external watchdog should not bark 3558 cf::write_runtime_sync; # external watchdog should not bark
3465 cf::emergency_save; 3559 cf::emergency_save;
3466 cf::write_runtime; # external watchdog should not bark 3560 cf::write_runtime_sync; # external watchdog should not bark
3467 3561
3468 warn "syncing database to disk"; 3562 warn "syncing database to disk";
3469 BDB::db_env_txn_checkpoint $DB_ENV; 3563 BDB::db_env_txn_checkpoint $DB_ENV;
3470 3564
3471 # 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
… …
3558 warn "leaving sync_job"; 3652 warn "leaving sync_job";
3559 3653
3560 1 3654 1
3561 } or do { 3655 } or do {
3562 warn $@; 3656 warn $@;
3563 warn "error while reloading, exiting."; 3657 cf::cleanup "error while reloading, exiting.";
3564 exit 1;
3565 }; 3658 };
3566 3659
3567 warn "reloaded"; 3660 warn "reloaded";
3568}; 3661};
3569 3662
… …
3597 3690
3598our @WAIT_FOR_TICK; 3691our @WAIT_FOR_TICK;
3599our @WAIT_FOR_TICK_BEGIN; 3692our @WAIT_FOR_TICK_BEGIN;
3600 3693
3601sub wait_for_tick { 3694sub wait_for_tick {
3602 return unless $TICK_WATCHER->is_active; 3695 return if tick_inhibit;
3603 return if $Coro::current == $Coro::main; 3696 return if $Coro::current == $Coro::main;
3604 3697
3605 my $signal = new Coro::Signal; 3698 my $signal = new Coro::Signal;
3606 push @WAIT_FOR_TICK, $signal; 3699 push @WAIT_FOR_TICK, $signal;
3607 $signal->wait; 3700 $signal->wait;
3608} 3701}
3609 3702
3610sub wait_for_tick_begin { 3703sub wait_for_tick_begin {
3611 return unless $TICK_WATCHER->is_active; 3704 return if tick_inhibit;
3612 return if $Coro::current == $Coro::main; 3705 return if $Coro::current == $Coro::main;
3613 3706
3614 my $signal = new Coro::Signal; 3707 my $signal = new Coro::Signal;
3615 push @WAIT_FOR_TICK_BEGIN, $signal; 3708 push @WAIT_FOR_TICK_BEGIN, $signal;
3616 $signal->wait; 3709 $signal->wait;
3617} 3710}
3618 3711
3619$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub { 3712sub tick {
3620 if ($Coro::current != $Coro::main) { 3713 if ($Coro::current != $Coro::main) {
3621 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3714 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3622 unless ++$bug_warning > 10; 3715 unless ++$bug_warning > 10;
3623 return; 3716 return;
3624 } 3717 }
3625 3718
3626 $NOW = $tick_start = EV::now;
3627
3628 cf::server_tick; # one server iteration 3719 cf::server_tick; # one server iteration
3629
3630 $RUNTIME += $TICK;
3631 $NEXT_TICK = $_[0]->at;
3632 3720
3633 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3721 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3634 $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.;
3635 Coro::async_pool { 3723 Coro::async_pool {
3636 $Coro::current->{desc} = "runtime saver"; 3724 $Coro::current->{desc} = "runtime saver";
3637 write_runtime 3725 write_runtime_sync
3638 or warn "ERROR: unable to write runtime file: $!"; 3726 or warn "ERROR: unable to write runtime file: $!";
3639 }; 3727 };
3640 } 3728 }
3641 3729
3642 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3730 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
… …
3644 } 3732 }
3645 while (my $sig = shift @WAIT_FOR_TICK) { 3733 while (my $sig = shift @WAIT_FOR_TICK) {
3646 $sig->send; 3734 $sig->send;
3647 } 3735 }
3648 3736
3649 $LOAD = ($NOW - $tick_start) / $TICK; 3737 $LOAD = ($NOW - $TICK_START) / $TICK;
3650 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; 3738 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3651 3739
3652 _post_tick; 3740 if (0) {
3653}; 3741 if ($NEXT_TICK) {
3654$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}
3655 3748
3656{ 3749{
3657 # configure BDB 3750 # configure BDB
3658 3751
3659 BDB::min_parallel 8; 3752 BDB::min_parallel 8;

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