Add option to flush region files on save (#9149)

patches/server/0005-Paper-config-files.patch

@@ -1448,10 +1448,10 @@ index 0000000000000000000000000000000000000000..1bb16fc7598cd53e822d84b69d6a9727
 +}
 diff --git a/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..ee430563b99e48cd722c2897e4729936457d3017
+index 0000000000000000000000000000000000000000..a33de97340f14219291c4175e9194914cdf441db
 --- /dev/null
 +++ b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
-@@ -0,0 +1,481 @@
+@@ -0,0 +1,482 @@
 +package io.papermc.paper.configuration;
 +
 +import com.google.common.collect.HashBasedTable;
@@ -1880,6 +1880,7 @@ index 0000000000000000000000000000000000000000..ee430563b99e48cd722c2897e4729936
 +            map.put(EntityType.FIREBALL, -1);
 +            map.put(EntityType.SMALL_FIREBALL, -1);
 +        });
++        public boolean flushRegionsOnSave = false;
 +    }
 +
 +    public FishingTimeRange fishingTimeRange;

patches/server/0018-Rewrite-chunk-system.patch

@@ -5486,10 +5486,10 @@ index 0000000000000000000000000000000000000000..fb42d776f15f735fb59e972e00e2b512
 +}
 diff --git a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..e4dcadc24b3d73178ee1a4b64b8c6343e5285e59
+index 0000000000000000000000000000000000000000..748cc48c6c42c694d1c9b685e96fbe6d8337d3f3
 --- /dev/null
 +++ b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
-@@ -0,0 +1,1204 @@
+@@ -0,0 +1,1211 @@
 +package io.papermc.paper.chunk.system.scheduling;
 +
 +import ca.spottedleaf.concurrentutil.executor.standard.PrioritisedExecutor;
@@ -5749,6 +5749,13 @@ index 0000000000000000000000000000000000000000..e4dcadc24b3d73178ee1a4b64b8c6343
 +        }
 +        if (flush) {
 +            RegionFileIOThread.flush();
++            if (this.world.paperConfig().chunks.flushRegionsOnSave) {
++                try {
++                    this.world.chunkSource.chunkMap.regionFileCache.flush();
++                } catch (IOException ex) {
++                    LOGGER.error("Exception when flushing regions in world {}", this.world.getWorld().getName(), ex);
++                }
++            }
 +        }
 +        if (logProgress) {
 +            LOGGER.info("Saved " + savedChunk + " block chunks, " + savedEntity + " entity chunks, " + savedPoi + " poi chunks in world '" + this.world.getWorld().getName() + "' in " + format.format(1.0E-9 * (System.nanoTime() - start)) + "s");

patches/server/0705-Distance-manager-tick-timings.patch

@@ -19,10 +19,10 @@ index efbf77024d235d8af9f7efc938c17afd76a51b0c..670dcfa32d003870091b75937f1603a5
      public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
  
 diff --git a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
-index e4dcadc24b3d73178ee1a4b64b8c6343e5285e59..e5d9c6f2cbe11c2ded6d8ad111fa6a8b2086dfba 100644
+index 748cc48c6c42c694d1c9b685e96fbe6d8337d3f3..ad3560284ae79b9c6bbc8752be7d9d14b18e226e 100644
 --- a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
 +++ b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
-@@ -915,7 +915,9 @@ public final class ChunkHolderManager {
+@@ -922,7 +922,9 @@ public final class ChunkHolderManager {
      }
  
      public boolean processTicketUpdates() {