Sky Walking | [中文](https://github.com/wu-sheng/sky-walking/wiki/sky-walking-documents-zh-contents)
==========
**SkyWalking 3**: APM for Distributed Systems, also known Distributed Tracing System.
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* Auto instrumentation by javaagent, **no need to CHANGE any application source code**.
* High performance agent. Only incrase extra **10%** cpu cost in 5000+ tps application, even **do not need open sampling mechanism**, [check test reports](#test-reports).
* [Supported middlewares, frameworks and libraries](https://github.com/wu-sheng/sky-walking/wiki/3.0-supported-list).
* Manual instrumentation
* As an [OpenTracing supported tracer](http://opentracing.io/documentation/pages/supported-tracers)
* Use **@Trace** annotation for any methods you want to trace.
* Pure Java server implementation, provide RESTful and gRPC services. Compatibility with other language agents/SDKs.
* [How to uplink metrics and traces to collector?]()
* The UI released on [wu-sheng/sky-walking-ui](https://github.com/wu-sheng/sky-walking-ui)
# Contributors
_In chronological order_
* 吴晟 [**PMC Member**] [@wu-sheng](https://github.com/wu-sheng) Principle Engineer, 2012 Lab, Huawei.
* 张鑫 [**PMC Member**] [@ascrutae](https://github.com/ascrutae)
* 谭真 [@mircoteam](https://github.com/mircoteam) Advanced R&D Engineers, Creative & Interactive Group.
* 徐妍 [@TastySummer](https://github.com/TastySummer)
* 彭勇升 [**PMC Member**] [@pengys5](https://github.com/pengys5)
* 戴文
* 柏杨 [@bai-yang](https://github.com/bai-yang) Senior Engineer, Alibaba Group.
* 陈凤 [@trey03](https://github.com/trey03)
* [More contributors](https://github.com/wu-sheng/sky-walking/graphs/contributors)
This project adheres to the Contributor Covenant [code of conduct](CODE_OF_CONDUCT.md). By participating, you are expected to uphold this code. Please report unacceptable behavior to wu.sheng@foxmail.com.
# Screenshots
- Topological graph of application clusters based on Spring Cloud.
- Topological graph of application clusters based on dubbox and [motan](https://github.com/weibocom/motan).
- Trace query.
- Span detail.
# Test reports
- Automatic integration test reports
- [Java Agent test report](https://github.com/sky-walking/agent-integration-test-report)
- Performance test reports
- [Java Agent test report](https://github.com/sky-walking/Agent-Benchmarks#benchmarks)
# Document
* [WIKI](https://github.com/wu-sheng/sky-walking/wiki)
_Chat with us on gitter, in English. As a Chinese Developer, you can join QQ Group: 392443393, by **tagging** Sky-Walking._