585ce1593f
Motivation: Before we used a long[] to store the ready events, this had a few problems and limitations: - An extra loop was needed to translate between epoll_event and our long - JNI may need to do extra memory copy if the JVM not supports pinning - More branches Modifications: - Introduce a EpollEventArray which allows to directly write in a struct epoll_event* and pass it to epoll_wait. Result: Better speed when using native transport, as shown in the benchmark. Before: [xxx@xxx wrk]$ ./wrk -H 'Connection: keep-alive' -d 120 -c 256 -t 16 -s scripts/pipeline-many.lua http://xxx:8080/plaintext Running 2m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 14.56ms 8.64ms 117.15ms 80.58% Req/Sec 286.17k 38.71k 421.48k 68.17% 546324329 requests in 2.00m, 73.78GB read Requests/sec: 4553438.39 Transfer/sec: 629.66MB After: [xxx@xxx wrk]$ ./wrk -H 'Connection: keep-alive' -d 120 -c 256 -t 16 -s scripts/pipeline-many.lua http://xxx:8080/plaintext Running 2m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 14.12ms 8.69ms 100.40ms 83.08% Req/Sec 294.79k 40.23k 472.70k 66.75% 555997226 requests in 2.00m, 75.08GB read Requests/sec: 4634343.40 Transfer/sec: 640.85MB
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
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.