Mojang precaches every single potential rewrite rule that could ever
exist on server startup. This includes rules from all the way back to versions from 6+ years ago.
This is the source of why the server hogs every CPU core at 100% every start.
For anyone who hard resets for updates or has force upgraded their entire world, this
results in completely wasted cpu cycles.
This massive CPU usage also delays server startup time.
We improve this by making "min version to precache" that defaults to a future version
so that no rewrite rules are precached.
someone who expects to be converting a lot chunks could theoretically set
-DPaper.minPrecachedDatafixVersion=<dataVersionConvertingFrom> as a startup
parameter and only build from that point on.
However this will likely never be needed as the server will still run
the same cache logic on demand when it's actually needed. The only
cost would be some delay on the FIRST chunk conversion, but paper already
runs chunk conversions on another thread so this will likely never be
a concern for TPS.
This patch will significantly reduce CPU use on startup, reduce memory usage,
and improve server startup time.
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
CraftBukkit Changes:
d5a72960 SPIGOT-6063: ConsoleSender sending extra lines in Java 13+
Spigot Changes:
2740d5ae Rebuild patches
1.16.2 introduced 2 thread pools for Bootstrap vs main we didn't account for.
This also sets Bootstrap priority to be 1 less thread priority too so MC Main threads will always have
more priority specially on servers running multiple instances, since bootstrap tends to use up all CPU.
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:
91957aa3 #550: Add getHandlerList into ArrowBodyCountChangeEvent
30dc3e37 Update deprecation message for PotionMeta.setMainEffect
CraftBukkit Changes:
6f55306c4 SPIGOT-5794: Only skip interact event if position, hand and itemstack are equal
This is a pretty tiny update with very little changed. Recommended to update
from 1.16.2 ASAP as 1.16.2 is now no longer supported.
Plugins should mostly remain working as the NMS revision did not change.
Previously, Entity Activation Range only applied to the root entity of a vehicle chain.
If that vehicle is active, every entity as it's passenger would then tick.
This creates scenarios where EAR does not apply your desired ranges to passengers.
Additionally, any entity that was a passenger never had its inactiveTick method called
when the parent was inactive, creating behavioral desyncs.
This could of been a source of many villager issues when those villagers were in minecarts
as players commonly do.
Now we will process passengers checking their activation state independently of their vehicle
and if they are inactive, call their inactiveTick() method to ensure state remains consistent.
This also helps improve any desync issues with entity position of passengers too.
This also removes immunity for passenger/vehicles, so it should improve performance
of these minecart villagers too for EAR.
This makes it so entities that are passengers of other entities no longer count in the parents timings, as well as
tracks them as a separate timers per their tick status.
This lets you see how much time is spent in activated entities vs inactive (as inactive still has to do work)
Passengers is also tracked separately so you can identify "Villagers in Minecarts" vs roaming villagers, as
the lack of ability to move can impact their performance characteristics.
This will likely break any plugin that was naughty and directly messed with our internal timings as this
moves the timings to the EntityTypes object, speeding up creation of Entities to no longer store
a timing handler object per entity.
This will also change the output of the entities in timings to use internal ID's instead of class names.
If a plugin is broken by this, shame them for doing bad things. Paper will not fix it, they will have to fix it.
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
CraftBukkit Changes:
b8ee6a89f SPIGOT-6125: Grass path should only fade when it is invalid at that location
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
CraftBukkit Changes:
a939fbdf0 SPIGOT-6123: Call EntityDamageEvent when a shulker bullet gets damaged
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
CraftBukkit Changes:
a05df28a7 SPIGOT-6122: Revert "SPIGOT-5794: Do not skip PlayerInteractEvent"
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
CraftBukkit Changes:
1d7440332 #745: Fix getLocation for Cartography Table and Stonecutter
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:
0e90062a Remove draft API from entity persistence
CraftBukkit Changes:
13fc33f73 #744: Add ability to get location from smithing inventory
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:
b56e8160 #519: Add ArrowBodyCountChangeEvent
CraftBukkit Changes:
39806409e #697: Add ArrowBodyCountChangeEvent
Spigot has been stripping the minecraft-server jar down in order to
reduce it's size, primarily by removing classes they don't use from
fastutil. as we use fastutil and offer it as API, this is useless
to us, and creates headaches when it breaks builds due to spigots
version of this being installed.
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:
565a5727 #533: Add consumed item, hand and consumeItem boolean to EntityShootBowEvent
CraftBukkit Changes:
927200a9 #718: Add consumed item, hand and consumeItem boolean to EntityShootBowEvent
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
CraftBukkit Changes:
6008e6660 SPIGOT-6025: Do not NPE when target world of a compass no longer exists
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
CraftBukkit Changes:
00bff0270 SPIGOT-5794: Do not skip PlayerInteractEvent
Up to now a simple counter variable was used to iterate through the
hidden-blocks in engine-mode 2 while obfuscating. This results in low
quality obfuscation.
One could for example easily write a hack, which bypasses Anti-Xray
by not showing ores, which have a certain pattern.
Furthermore, engine-mode 1 is slightly optimized by this commit.
However, engine-mode 2 is probably somewhat slower. I did some tests but
I wasn't able to get stable results for some reason. Therefore this
needs further testing.
An optimized random algorithm is utilized to pick random blocks from the
hidden-blocks list. This implementation uses xorshift and integer
multiplication for bounding. The resulting distribution is negligibly
biased because xorshift doesn't generate 0 and integer multiplication
also implies biased results.
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
CraftBukkit Changes:
3f572834 #740: Fix EntityDamageEvent not being called for non EntityDamageSource for End Crystals
3c7143e7 SPIGOT-5953, SPIGOT-5914: Use LinkedHashMap to keep captured block states in order
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