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even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even more patches
2021-11-25 06:31:14 +00:00
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
Rewrite chunk system (#8177) Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 08:02:51 +00:00
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even more patches
2021-11-25 06:31:14 +00:00
Date: Sat, 4 Apr 2020 17:00:20 -0700
Subject: [PATCH] Consolidate flush calls for entity tracker packets
Most server packets seem to be sent from here, so try to avoid
expensive flush calls from them.
This change was motivated due to local testing:
- My server spawn has 130 cows in it (for testing a prev. patch)
- Try to let 200 players join spawn
Without this change, I could only get 20 players on before they
all started timing out due to the load put on the Netty I/O threads.
With this change I could get all 200 on at 0ms ping.
(one of the primary issues is that my CPU is kinda trash, and having
4 extra threads at 100% is just too much for it).
So in general this patch should reduce Netty I/O thread load.
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
Remove old redundant fix (#8530)
2022-11-03 21:03:31 +00:00
index 44ea29c42d660cc92481a78990b5cdb7a23ef2a9..be97d38f45046a7f6d2337d879651f04cf9ff825 100644
even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even more patches
2021-11-25 06:31:14 +00:00
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
Rewrite chunk system (#8177) Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 08:02:51 +00:00
@@ -804,7 +804,24 @@ public class ServerChunkCache extends ChunkSource {
1.18 misc performance dev branch (#7368) - Port player chunk loader patch Makes the chunk system act as it did in 1.17, no additional tickets (and thus logic) to make a chunk ticking. Adds simulation distance API, deprecates old no-tick method. - More collision optimisations Ancient patch from tuinity that never could be pushed to master. - Fix Optimise ArraySetSorted#removeIf patch - Execute chunk tasks fairly for worlds while waiting for next tick - Port Replace ticket level propagator
2022-02-18 17:44:46 +00:00
this.level.timings.broadcastChunkUpdates.stopTiming(); // Paper - timing
even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even more patches
2021-11-25 06:31:14 +00:00
gameprofilerfiller.pop();
1.18 misc performance dev branch (#7368) - Port player chunk loader patch Makes the chunk system act as it did in 1.17, no additional tickets (and thus logic) to make a chunk ticking. Adds simulation distance API, deprecates old no-tick method. - More collision optimisations Ancient patch from tuinity that never could be pushed to master. - Fix Optimise ArraySetSorted#removeIf patch - Execute chunk tasks fairly for worlds while waiting for next tick - Port Replace ticket level propagator
2022-02-18 17:44:46 +00:00
// Paper end - use set of chunks requiring updates, rather than iterating every single one loaded
even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even even more patches
2021-11-25 06:31:14 +00:00
+ // Paper start - controlled flush for entity tracker packets
+ List<net.minecraft.network.Connection> disabledFlushes = new java.util.ArrayList<>(this.level.players.size());
+ for (ServerPlayer player : this.level.players) {
+ net.minecraft.server.network.ServerGamePacketListenerImpl connection = player.connection;
+ if (connection != null) {
+ connection.connection.disableAutomaticFlush();
+ disabledFlushes.add(connection.connection);
+ }
+ }
+ try { // Paper end - controlled flush for entity tracker packets
this.chunkMap.tick();
+ // Paper start - controlled flush for entity tracker packets
+ } finally {
+ for (net.minecraft.network.Connection networkManager : disabledFlushes) {
+ networkManager.enableAutomaticFlush();
+ }
+ }
+ // Paper end - controlled flush for entity tracker packets
}
}