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Norman Maurer 13fd69e871 Implement Thread caches for pooled buffers to minimize conditions. This fixes [#2264] and [#808]. 
Motivation:
Remove the synchronization bottleneck in PoolArena and so speed up things

Modifications:

This implementation uses kind of the same technics as outlined in the jemalloc paper and jemalloc
blogpost https://www.facebook.com/notes/facebook-engineering/scalable-memory-allocation-using-jemalloc/480222803919.

At the moment we only cache for "known" Threads (that powers EventExecutors) and not for others to keep the overhead
minimal when need to free up unused buffers in the cache and free up cached buffers once the Thread completes. Here
we use multi-level caches for tiny, small and normal allocations. Huge allocations are not cached at all to keep the
memory usage at a sane level. All the different cache configurations can be adjusted via system properties or the constructor
directly where it makes sense.

Result:
Less conditions as most allocations can be served by the cache itself
2014-03-20 09:18:04 -07:00
all [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
buffer Implement Thread caches for pooled buffers to minimize conditions. This fixes [#2264] and [#808]. 2014-03-20 09:18:04 -07:00
codec Remove condition in ChannelHandlerAdapter.isSharable() by caching the result of the annotation lookup. 2014-03-12 12:31:22 +01:00
codec-http [#2305] Fix issue related to decoding post request raized an exception due to a split of information by chunk not correctly taken into account by the decoder 2014-03-14 09:36:50 +01:00
codec-socks [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
common Fix and simplify freeing a direct buffer / Fix Android support 2014-03-20 11:13:25 +09:00
example Ensure the HttpResponseEncoder is always placed before the HttpObjectAggregator. Part of [#2219] 2014-03-05 06:56:21 +01:00
handler Replace usage of System.currentTimeMillis() with System.nanoTime() 2014-03-18 16:05:51 +09:00
license [#1259] Add optimized queue for SCMP pattern and use it in NIO and native transport 2014-02-27 11:44:06 +01:00
microbench [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
tarball [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
testsuite Reduce SO_TIMEOUT of testsuite so it finishes sooner 2014-03-17 10:53:49 +09:00
transport [#2326] Add constructor to NioServerSocketChannel which accepts a ServerSocketChannel 2014-03-16 07:00:44 -07:00
transport-native-epoll Perform cross-tests between NIO and epoll transport 2014-03-17 10:38:18 +09:00
transport-rxtx [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
transport-sctp [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
transport-udt [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
.fbfilter.xml Update license headers 2012-06-04 13:31:44 -07:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitignore Format and partially describe Gitignore 2013-12-10 07:04:38 +01:00
.travis.yml Travis CI branch whitelisting 2013-03-11 09:55:43 +09:00
CONTRIBUTING.md Move the pull request guide to the developer guide 2014-03-12 13:18:14 +09:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
NOTICE.txt [#1259] Add optimized queue for SCMP pattern and use it in NIO and native transport 2014-02-27 11:44:06 +01:00
pom.xml Add -verbose:gc option for test runs 2014-03-17 14:20:32 +09:00
README.md Update README.md 2014-01-16 14:38:36 +09:00

README.md

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

Links

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

The 'master' branch is where the development of the latest major version lives on. The development of all other major versions takes place in each branch whose name is identical to its major version number. For example, the development of 3.x and 4.x resides in the branch '3' and the branch '4' respectively.