004ffbad90
Motivation: Depth-first search is not always efficient for buddy allocation. Modification: Employ a new faster search algorithm with different memoryMap layout. Result: With thread-local cache disabled, we see a lot of performance improvment, especially when the size of the allocation is as small as the page size, which had the largest search space previously: -- master head -- Benchmark (size) Mode Score Error Units pooledDirectAllocAndFree 8192 thrpt 215.392 1.565 ops/ms pooledDirectAllocAndFree 16384 thrpt 594.625 2.154 ops/ms pooledDirectAllocAndFree 65536 thrpt 1221.520 18.965 ops/ms pooledHeapAllocAndFree 8192 thrpt 217.175 1.653 ops/ms pooledHeapAllocAndFree 16384 thrpt 587.250 14.827 ops/ms pooledHeapAllocAndFree 65536 thrpt 1217.023 44.963 ops/ms -- changes -- Benchmark (size) Mode Score Error Units pooledDirectAllocAndFree 8192 thrpt 3656.744 94.093 ops/ms pooledDirectAllocAndFree 16384 thrpt 4087.152 22.921 ops/ms pooledDirectAllocAndFree 65536 thrpt 4058.814 29.276 ops/ms pooledHeapAllocAndFree 8192 thrpt 3640.355 44.418 ops/ms pooledHeapAllocAndFree 16384 thrpt 4030.206 24.365 ops/ms pooledHeapAllocAndFree 65536 thrpt 4103.991 70.991 ops/ms |
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|---|---|---|
| all | ||
| buffer | ||
| codec | ||
| codec-http | ||
| codec-socks | ||
| common | ||
| example | ||
| handler | ||
| license | ||
| microbench | ||
| tarball | ||
| testsuite | ||
| transport | ||
| transport-native-epoll | ||
| transport-rxtx | ||
| transport-sctp | ||
| transport-udt | ||
| .fbfilter.xml | ||
| .fbprefs | ||
| .gitignore | ||
| .travis.yml | ||
| CONTRIBUTING.md | ||
| LICENSE.txt | ||
| 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
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.