Jeremy Hunt
- jeremydeath
- jeremydeath
- America/Havana
- Yes
- No
1 issues
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MC-34464Performance Inefficiency Caused by Unnecessary Reads and Unbuffered IO on Region Files
Incomplete
MC-34464Jeremy HuntMC-34464
Oops, it looks like it has. I wrote this post a couple months ago when Attlasian's new account system was still down and just now was able to post it. The link is not super important, just some benchmarks. Here is a another (less official/scientific) link with similar information. http://stackoverflow.com/questions/2593531/traditional-io-vs-memory-mapped
Yes, this applies to both the Anvil file format and the Region format as far as I can tell. There were very few changes between these two formats, and the decompiled code in 1.6 showed that it had not been fixed.
Updated the version.
Updated the version
Grum, I'm a little confused as to what you want... Minecraft is still closed-source, so I can't really provide faster modified code. I've given a description to the best of my ability of how the problem should most likely be addressed and linked to a page that contains example code for using FileChannels with MappedByteBuffers as well as benchmarks showing that it is indeed much faster. Without accesses to Mincraft's source-code, compilation environment/settings, and benchmarking tools, I can't really do much else.