2a1596a4e9
Motivation:
When using Epoll based transport, allow applications to configure SO_BUSY_POLL socket option:
SO_BUSY_POLL (since Linux 3.11)
Sets the approximate time in microseconds to busy poll on a
blocking receive when there is no data. Increasing this value
requires CAP_NET_ADMIN. The default for this option is con‐
trolled by the /proc/sys/net/core/busy_read file.
The value in the /proc/sys/net/core/busy_poll file determines
how long select(2) and poll(2) will busy poll when they oper‐
ate on sockets with SO_BUSY_POLL set and no events to report
are found.
In both cases, busy polling will only be done when the socket
last received data from a network device that supports this
option.
While busy polling may improve latency of some applications,
care must be taken when using it since this will increase both
CPU utilization and power usage.
Modification:
Added SO_BUSY_POLL socket option
Result:
Able to configure SO_BUSY_POLL from Netty
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| .github | ||
| .mvn/wrapper | ||
| all | ||
| bom | ||
| buffer | ||
| codec | ||
| codec-dns | ||
| codec-haproxy | ||
| codec-http | ||
| codec-http2 | ||
| codec-memcache | ||
| codec-mqtt | ||
| codec-redis | ||
| codec-smtp | ||
| codec-socks | ||
| codec-stomp | ||
| codec-xml | ||
| common | ||
| dev-tools | ||
| docker | ||
| example | ||
| handler | ||
| handler-proxy | ||
| license | ||
| microbench | ||
| resolver | ||
| resolver-dns | ||
| tarball | ||
| testsuite | ||
| testsuite-autobahn | ||
| testsuite-http2 | ||
| testsuite-osgi | ||
| testsuite-shading | ||
| transport | ||
| transport-native-epoll | ||
| transport-native-kqueue | ||
| transport-native-unix-common | ||
| transport-native-unix-common-tests | ||
| transport-rxtx | ||
| transport-sctp | ||
| transport-udt | ||
| .fbprefs | ||
| .gitattributes | ||
| .gitignore | ||
| CONTRIBUTING.md | ||
| LICENSE.txt | ||
| mvnw | ||
| mvnw.cmd | ||
| NOTICE.txt | ||
| pom.xml | ||
| README.md | ||
| run-example.sh | ||
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:
- Latest stable Oracle JDK 7
- Latest stable Apache Maven
- If you are on Linux, you need additional development packages installed on your system, because you'll build the native transport.
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.allio.netty.bufferio.netty.codecio.netty.codec.dnsio.netty.codec.haproxyio.netty.codec.httpio.netty.codec.http2io.netty.codec.memcacheio.netty.codec.mqttio.netty.codec.redisio.netty.codec.smtpio.netty.codec.socksio.netty.codec.stompio.netty.codec.xmlio.netty.commonio.netty.handlerio.netty.handler.proxyio.netty.resolverio.netty.resolver.dnsio.netty.transportio.netty.transport.epoll(nativeomitted - reserved keyword in Java)io.netty.transport.kqueue(nativeomitted - reserved keyword in Java)io.netty.transport.unix.common(nativeomitted - reserved keyword in Java)io.netty.transport.rxtxio.netty.transport.sctpio.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.