ec80b1e50f
Motivation: Currently when there are bytes left in the cumulation buffer we do a byte copy to produce the input buffer for the decode method. This can put quite some overhead on the impl. Modification: - Use a CompositeByteBuf to eliminate the byte copy. - Allow to specify if a CompositeBytebug should be used or not as some handlers can only act on one ByteBuffer in an efficient way (like SslHandler :( ). Result: Performance improvement as shown in the following benchmark. Without this patch: [xxx@xxx ~]$ ./wrk-benchmark Running 5m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 20.19ms 38.34ms 1.02s 98.70% Req/Sec 241.10k 26.50k 303.45k 93.46% 1153994119 requests in 5.00m, 155.84GB read Requests/sec: 3846702.44 Transfer/sec: 531.93MB With the patch: [xxx@xxx ~]$ ./wrk-benchmark Running 5m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 17.34ms 27.14ms 877.62ms 98.26% Req/Sec 252.55k 23.77k 329.50k 87.71% 1209772221 requests in 5.00m, 163.37GB read Requests/sec: 4032584.22 Transfer/sec: 557.64MB
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 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.