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Chris Vest 86730f53ca Create bespoke long/long hashmap and long-valued priority queue for PoolChunk (#10826)
Motivation:
The uncached access to PoolChunk can be made faster, and avoid allocating boxed Longs, if we have a primitive hash map and priority queue implementation for it.

Modification:
Add bespoke primitive implementations of a hash map and a priority queue for PoolChunk.
Remove all the long-boxing caused by the previous implementation.
The hashmap is a linear probing map with a fairly short probe that keeps the search within a couple of cache lines.
The priority queue is the same binary heap algorithm that's described in Algorithms by Sedgewick and Wayne.
The implementation avoids the Long boxing by relying on a long[] array.
This makes the internal-remove method faster, which is an important operation in PoolChunk.

Result:
Roughly 13% performance uplift in buffer allocations that miss cache.
2020-11-29 11:54:55 +01:00
.github Smaller output in codeql build (#10787) 2020-11-09 15:32:49 +01:00
.mvn Use latest maven release (#9820) 2019-11-27 14:45:48 +01:00
all Use correct netty-build artifact 2020-11-10 14:10:48 +01:00
bom Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
buffer Create bespoke long/long hashmap and long-valued priority queue for PoolChunk (#10826) 2020-11-29 11:54:55 +01:00
codec Fix NPE in ByteToMessageDecoder if the user removes the handler while channelInputClosed(...) is processing the buffer. (#10817) 2020-11-24 16:08:35 +01:00
codec-dns Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
codec-haproxy Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
codec-http Override Sec-WebSocket-Protocol websocket handshake response header after custom headers to avoid duplication (#10793) 2020-11-19 09:50:06 +01:00
codec-http2 Fix comment typo DelegatingDecompressorFrameListener (#10789) 2020-11-16 09:03:54 +01:00
codec-memcache Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
codec-mqtt Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
codec-redis Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
codec-smtp Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
codec-socks Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
codec-stomp Add ABORT and COMMIT STOMP commands to the StompCommand enum (#10790) 2020-11-19 14:23:48 +01:00
codec-xml Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
common Remove use of PlatformDependent.throwsException in SingleThreadEventExecutor (#10827) 2020-11-26 11:37:47 +01:00
dev-tools Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
docker Update to latest java 8/11/15 versions (#10774) 2020-11-04 10:41:33 +01:00
example Let object serialisation exceptions propagate in the Object Echo example (#10807) 2020-11-19 08:15:09 +01:00
handler OpenSsl.memoryAddress(...) should use internalNioBuffer(...) if it can't access the memoryAddress (#10818) 2020-11-25 10:32:43 +01:00
handler-proxy Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
license Enable nohttp check during the build (#10708) 2020-10-23 15:26:25 +02:00
microbench Fix caching for normal allocations (#10825) 2020-11-25 15:09:39 +01:00
resolver Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
resolver-dns Don't use the cname cache when using DnsRecordResolveContext (#10808) 2020-11-26 15:35:24 +01:00
resolver-dns-native-macos Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
tarball Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
testsuite Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
testsuite-autobahn Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
testsuite-http2 Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
testsuite-native-image Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
testsuite-native-image-client Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
testsuite-osgi Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
testsuite-shading Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
transport Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
transport-blockhound-tests Allow blocking calls inside SingleThreadEventExecutor.addTask (#10811) 2020-11-23 19:27:19 +01:00
transport-native-epoll IovArray should support when there is no unsafe present (#10814) 2020-11-23 14:04:13 +01:00
transport-native-kqueue IovArray should support when there is no unsafe present (#10814) 2020-11-23 14:04:13 +01:00
transport-native-unix-common IovArray should support when there is no unsafe present (#10814) 2020-11-23 14:04:13 +01:00
transport-native-unix-common-tests IovArray should support when there is no unsafe present (#10814) 2020-11-23 14:04:13 +01:00
transport-sctp Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
transport-udt/lib/bin/lib/x86_64-MacOSX-gpp/jni Replace reflection usage with MethodHandles when performance matters (#10097) 2020-03-11 21:04:40 +01:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Ignore .shelf/ folder generated by IntelliJ IDEA (#10445) 2020-08-03 07:52:18 +02:00
.lgtm.yml Enables lgtm.com to process this project and create a CodeQL database 2020-01-20 19:22:49 +01:00
CONTRIBUTING.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
LICENSE.txt Enable nohttp check during the build (#10708) 2020-10-23 15:26:25 +02:00
mvnw Enable nohttp check during the build (#10708) 2020-10-23 15:26:25 +02:00
mvnw.cmd Enable nohttp check during the build (#10708) 2020-10-23 15:26:25 +02:00
nohttp-checkstyle-suppressions.xml Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
nohttp-checkstyle.xml Enable nohttp check during the build (#10708) 2020-10-23 15:26:25 +02:00
NOTICE.txt Fix License type of dnsinfo (#10773) 2020-11-04 10:41:41 +01:00
pom.xml Use http in xmlns URIs to make maven release plugin happy again (#10788) 2020-11-10 10:51:05 +01:00
README.md Enable nohttp check during the build (#10708) 2020-10-23 15:26:25 +02:00
run-example.sh Add DNS client examples for run-example.sh (#10283) 2020-05-14 12:10:48 +02:00
SECURITY.md Added a security policy (#10692) 2020-10-15 20:40:05 +02:00

Netty Project

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

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

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.all
  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.