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Norman Maurer e59d0e9efb Introduce CodecOutputList to reduce overhead of encoder/decoder
Motivation:

99dfc9ea79 introduced some code that will more frequently try to forward messages out of the list of decoded messages to reduce latency and memory footprint. Unfortunally this has the side-effect that RecycleableArrayList.clear() will be called more often and so introduce some overhead as ArrayList will null out the array on each call.

Modifications:

- Introduce a CodecOutputList which allows to not null out the array until we recycle it and also allows to access internal array with extra range checks.
- Add benchmark that add elements to different List implementations and clear them

Result:

Less overhead when decode / encode messages.

Benchmark                                     (elements)   Mode  Cnt         Score        Error  Units
CodecOutputListBenchmark.arrayList                     1  thrpt   20  24853764.609 ± 161582.376  ops/s
CodecOutputListBenchmark.arrayList                     4  thrpt   20  17310636.508 ± 930517.403  ops/s
CodecOutputListBenchmark.codecOutList                  1  thrpt   20  26670751.661 ± 587812.655  ops/s
CodecOutputListBenchmark.codecOutList                  4  thrpt   20  25166421.089 ± 166945.599  ops/s
CodecOutputListBenchmark.recyclableArrayList           1  thrpt   20  24565992.626 ± 210017.290  ops/s
CodecOutputListBenchmark.recyclableArrayList           4  thrpt   20  18477881.775 ± 157003.777  ops/s

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 246.748 sec - in io.netty.handler.codec.CodecOutputListBenchmark
2016-05-20 09:12:07 +02:00
all [maven-release-plugin] prepare for next development iteration 2016-04-10 08:37:18 +02:00
buffer Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec Introduce CodecOutputList to reduce overhead of encoder/decoder 2016-05-20 09:12:07 +02:00
codec-dns Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec-haproxy [maven-release-plugin] prepare for next development iteration 2016-04-10 08:37:18 +02:00
codec-http HTTP/2 HPACK Header Name Validation and Trailing Padding 2016-05-17 13:42:16 -07:00
codec-http2 HTTP/2 HPACK Header Name Validation and Trailing Padding 2016-05-17 13:42:16 -07:00
codec-memcache Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec-mqtt Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec-redis Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec-smtp Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec-socks Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec-stomp Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
codec-xml Update dependencies 2016-04-14 11:05:53 +02:00
common Fix NPE when creating DomainNameMapping via a builder 2016-05-18 19:26:28 +09:00
example Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
handler Replace DomainMappingBuilder with DomainNameMappingBuilder 2016-05-18 12:03:14 +02:00
handler-proxy [maven-release-plugin] prepare for next development iteration 2016-04-10 08:37:18 +02:00
license added support for Protobuf codec nano runtime 2016-01-19 21:39:17 +01:00
microbench Introduce CodecOutputList to reduce overhead of encoder/decoder 2016-05-20 09:12:07 +02:00
resolver Change hosts file resolver to be case-insensitive 2016-05-10 08:57:48 +02:00
resolver-dns Do not send duplicate DNS queries when the same query is in progress already 2016-05-17 15:07:36 +02:00
tarball [maven-release-plugin] prepare for next development iteration 2016-04-10 08:37:18 +02:00
testsuite Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
testsuite-osgi [maven-release-plugin] prepare for next development iteration 2016-04-10 08:37:18 +02:00
transport [#5174] Expose Bootstrap getter methods and add some additional ones 2016-05-18 13:26:43 +02:00
transport-native-epoll DuplexChannel to support shutdownInput 2016-05-18 09:11:49 +02:00
transport-rxtx DuplexChannel to support shutdownInput 2016-05-18 09:11:49 +02:00
transport-sctp Make retained derived buffers recyclable 2016-05-17 11:16:13 +02:00
transport-udt DuplexChannel to support shutdownInput 2016-05-18 09:11:49 +02:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitignore Add JVM crash logs to .gitignore 2014-05-18 21:36:54 +09:00
.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 13:13:58 +09:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
NOTICE.txt added support for Protobuf codec nano runtime 2016-01-19 21:39:17 +01:00
pom.xml Upgrade to netty-tcnative-1.1.33.Fork16 2016-05-13 08:40:37 +02:00
README.md Updating Branches to look section to match the current branching structure of the project 2016-03-10 22:08:01 +01:00
run-example.sh Add an example client for codec-redis 2016-04-23 11:18:12 -07:00

Netty Project

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

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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.

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