Credit to Spotted for the idea
A lot of the new chunk system requires constant back and forth the main thread
to handle priority scheduling and ensuring conflicting tasks do not run at the
same time.
The issue is, these queues are only checked at either:
A) Sync Chunk Loads
B) End of Tick while sleeping
This results in generating chunks sitting waiting for a full tick to
complete before it will even start the next unit of work to do.
Additionally, this also delays loading of chunks until this same timing.
We will now periodically poll the chunk task queues throughout the tick,
looking for work to do.
We do this in a fair method that considers all worlds, not just the one being
ticked, so that each world can get 1 task procesed each before the next pass.
We also cap the throughput of these task processes to 1 per world per 0.1ms or
200 max per tick, to ensure that high volume of tasks do not overload the current
tick time.
In a view distance of 15, chunk loading performance was visually faster on the client.
Flying at high speed in spectator mode was able to keep up with chunk loading (as long as they are already generated)
Wiz mentioned that large WorldEdit operations cause light to run on
main thread. The queue was small, set to 5.. this bumps it to 20
but makes it configurable per-world.
The main risk of increasing this higher is during shutdown, some
queued light updates may be lost because mojang did not flush the
light engine on shutdown...
The queue size only puts a cap on max loss, doesn't solve that problem.
Don't touch this unless you know you have a problem and ok with the risk.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
7361a62e SPIGOT-5641: Add Block.getDrops(ItemStack, Entity)
1dc91b15 Add specific notes about what is not API
2b05ef88 #484: Allow statistics to be accessed for offline players
CraftBukkit Changes:
f7d6ad53 SPIGOT-5603: Use LootContext#lootingModifier in CraftLootTable
5838285d SPIGOT-5657: BlockPlaceEvent not cancelling for tripwire hooks
f325b9be SPIGOT-5641: Add Block.getDrops(ItemStack, Entity)
e25a2272 Fix some formatting in CraftHumanEntity
498540e0 Add Merchant slot delegate
b2de47d5 SPIGOT-5621: Add missing container types for opening InventoryView
aa3a2f27 #645: Allow statistics to be accessed for offline players
2122c0b1 #649: CraftBell should implement Bell
No longer clones visible chunks which is causing massive memory
allocation issues, likely the source of Humongous Objects on large servers.
Instead we just synchronize, clear and rebuild, reusing the same object buffers
as before with only 2 small objects created (FastIterator/MapEntry)
This should result in siginificant memory use reduction and improved GC behavior.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
122289ff Add FaceAttachable interface to handle Grindstone facing in common with Switches
a6db750e SPIGOT-5647: ZombieVillager entity should have getVillagerType()
CraftBukkit Changes:
bbe3d58e SPIGOT-5650: Lectern.setPage(int) causes a NullPointerException
3075579f Add FaceAttachable interface to handle Grindstone facing in common with Switches
95bd4238 SPIGOT-5647: ZombieVillager entity should have getVillagerType()
4d975ac3 SPIGOT-5617: setBlockData does not work when NotPlayEvent is called by redstone current
Try to use a faster chunk lookup for collision detection, and only
fall back to the original for nearby chunks.
The collision code takes an AABB and generates a cuboid of checks rather
than a cylinder, so at high velocity this can generate a lot of chunk checks.
Where I blocked movement did not consider velocity buildup, which I assume
then "unleashes" if something was really trying to push that entity, and moves
it a very large distance.
Additionally, this method was completely misnamed, as movementTick
is more "doLotsOfTickThings", and ended up breaking AI too, which the whole
point of temporary wake ups was to let AI run to trigger new immunity.
Also fixed numerous behavioral rules for Immunity to improve vanilla gameplay,
suchas bees that are angry or moving towards a flower or hive, any insentient
that is targetting any enemy (Accidently made it any player), and included flying
mobs such as phantoms by reducing the type check to insentient instead of Creature.
Also improved inWater immunity to consider if the mob is movable by water or not.
The entire reason the if statement exists is to only flush and print when done if flag is true
This avoids /save-all from hurting as much as it was before, such as from backup plugins.
CraftBukkit caused a regression here by making unloading chunks not
have a ticket added and returning unloaded future.
This caused entities who were killed in same tick their chunk is unloading
to not be able to be removed from the chunk.
This then results in dead entities lingering in the Chunk.
Combine that with a buggy detail of the previous implementation of
the Dupe UUID patch, then this was the likely source of the "Ghost entities"
If something calls register twice, and the world is ticking, it could be
enqueued to add twice.
Vs behavior of non ticking of just overwriting state.
We will now simply log a warning when this happens instead of crashing the server.
This was not applied correctly, and would completely blow up chunk entity
registration if this feature was turned off....
Additionally, change how the entities are removed to be more consistent with other code.
Surface some of the logs indicating there is a problem as we are having so many issues with
entities that we don't need to be surpressing logs like that.
Faster Entity iteration using the chunks full entity list and array access.
Faster chunk lookups skipping the cache, as the pattern of access was not suitable
for cache usage (each request will likely blow cache)
This reduces the cost of Entity Activation Range's initial marking.
1) Immunity no longer gives 20 tick immunity, each immunity check can
give its own tick value on how long it lasts, drastically cutting down on most to 0-1 ticks.
2) Fixed Villager Immunity to use proper 1.15 check for Breeding.
3) Fixed Water Mobs being 100% immune due to the inWater check...
4) Fixed flying mobs being 100% immune due to the !onGround check...
5) Made Insentient mobs only check for the hasTasks during immunity check window, not every single tick. this made them way more active than desired
- this puts behavior closer to inline with my original behavior in Spigot, but still does some checks to allow them temporary immunity, just not as much as before.
6) Inactive Entities would "inch" while trying to move, effectively getting nowhere. Now while an entity is inactive, it just won't even try to move.
- this saves us from the expensiveness of Entity movement 1 out of 20 ticks. Now they will only move while either active or triggered a true immunity.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
564ed152 #482: Add a DragonBattle API to manipulate respawn phases etc
9f2fd967 #474: Add ability to set other plugin names as provided API so others can still depend on it
CraftBukkit Changes:
fc318cc1 #642: Add a DragonBattle API to manipulate respawn phases etc
796eb15a #644: Fix ChunkMapDistance#removeAllTicketsFor not propagating ticket level updates
a6f80937 SPIGOT-5606: call BlockRedstoneEvent for fence gates
Spigot Changes:
a03b1fdb Rebuild patches
Only occurred when entries were scheduled with huge tick delays
Add two flags to debug excessive tick delays:
-Dpaper.ticklist-warn-on-excessive-delay=true (false by default)
and -Dpaper.ticklist-excessive-delay-threshold=ticks which
sets the excessive tick delay to the specified ticks (defaults to
60 * 20 ticks, aka 60 seconds)
Removing the try catch and generally reducing ops should make it
faster on its own, however removing the try catch makes it
easier to inline due to code size
Previous solution could still block network thread (while addPending is executing). This window is small, but removing it completely is better. This should probably also speed up concurrent adds, because no locking will be performed anymore.
The only possible downside is that adding elements one by one to synchronized list might be slower (But it's done while already locked, so maybe jvm will avoid additional locking?),
This allows you to solve an issue in vanilla behavior where:
* On easy difficulty your villagers will NEVER get infected, meaning they will always die.
* On normal difficulty they will have a 50% of getting infected or dying.
