Andrew Purtell created HBASE-12615:
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Summary: Document GC conserving guidelines for contributors
Key: HBASE-12615
URL: https://issues.apache.org/jira/browse/HBASE-12615
Project: HBase
Issue Type: Bug
Components: documentation
Reporter: Andrew Purtell
LinkedIn put up a blog post with a nice concise list of GC conserving
techniques we should document for contributors. Additionally, when we're at a
point our build supports custom error-prone plugins, we can develop warnings
for some of them.
Source:
http://engineering.linkedin.com/performance/linkedin-feed-faster-less-jvm-garbage
- Be careful with Iterators
- Estimate the size of a collection when initializing
- Defer expression evaluation
- Compile the regex patterns in advance
- Cache it if you can
- String Interns are useful but dangerous
All good advice and practice that I know we aim for.
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