Commit graph

9 Commits

Autor SHA1 Nachricht Datum
feildmaster
23b6764374 Update CraftBukkit to Minecraft 1.4.6 2012-12-20 10:43:00 -06:00
Travis Watkins
24143ef6a1 Load chunks asynchronously for players.
When a player triggers a chunk load via walking around or teleporting there
is no need to stop everything and get this chunk on the main thread. The
client is used to having to wait some time for this chunk and the server
doesn't immediately do anything with it except send it to the player. At
the same time chunk loading is the last major source of file IO that still
runs on the main thread.

These two facts make it possible to offload chunks loaded for this reason
to another thread. However, not all parts of chunk loading can happen off
the main thread. For this we use the new AsynchronousExecutor system to
split chunk loading in to three pieces. The first is loading data from
disk, decompressing it, and parsing it in to an NBT structure.  The second
piece is creating entities and tile entities in the chunk and adding them
to the world, this is still done on the main thread. The third piece is
informing everyone who requested a chunk load that the load is finished.
For this we register callbacks and then run them on the main thread once
the previous two stages are finished.

There are still cases where a chunk is needed immediately and these will
still trigger chunk loading entirely on the main thread. The most obvious
case is plugins using the API to request a chunk load. We also must load
the chunk immediately when something in the world tries to access it. In
these cases we ignore any possibly pending or in progress chunk loading
that is happening asynchronously as we will have the chunk loaded by the
time they are finished.

The hope is that overall this system will result in less CPU time and
pauses due to blocking file IO on the main thread thus giving more
consistent performance. Testing so far has shown that this also speeds up
chunk loading client side although some of this is likely to be because
we are sending less chunks at once for the client to process.

Thanks for @ammaraskar for help with the implementation of this feature.
2012-12-12 19:35:53 -06:00
Travis Watkins
7f7192f8fd Update CraftBukkit to Minecraft 1.4.4. 2012-11-13 16:09:52 -06:00
Travis Watkins
60819c6693 Update CraftBukkit to Minecraft 1.4(.2). 2012-10-27 22:19:03 -04:00
feildmaster
a43d621c01 Update CraftBukkit to Minecraft 1.3.1 2012-08-02 04:58:50 -05:00
Wesley Wolfe
b00de5f176 Cleaned up CraftBukkit comments in NMS.
Added newlines at the end of files
Fixed improper line endings on some files
Matched start - end comments
Added some missing comments for diffs
Fixed syntax on some spots
Minimized some diff
Removed some no longer used files
Added comment on some required files with no changes
Fixed imports of items used once
Added imports for items used more than once
2012-07-23 23:55:31 -05:00
Nathan Adams
543c4879fe Updated CraftBukkit to 1.2 2012-03-01 14:38:31 +00:00
Nathan Adams
875219e28c Fixed vanilla issue where chunks would be mislocated and corrupt. Big thanks to Wug for the fix. 2012-01-30 04:27:25 +00:00
Nathan Adams
72559fe634 Added ChunkLoader.java and ChunkRegionLoader.java for diff visibility 2012-01-30 04:20:59 +00:00