Tom Lee created THRIFT-3431:
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Summary: Avoid "schemes" HashMap lookups during struct reads/writes
Key: THRIFT-3431
URL: https://issues.apache.org/jira/browse/THRIFT-3431
Project: Thrift
Issue Type: Improvement
Components: Java - Compiler
Affects Versions: 0.9.3
Reporter: Tom Lee
Priority: Minor
Generated Java code for structs doesn't need to do a HashMap lookup on every
read/write operation.
Was surprised to see this show up in profilers under certain high throughput,
write-heavy loads. Unclear if the cost was in the hashCode() implementation of
the key or in the map lookup itself, but given this map never changes, for now
it seems like it can be pretty safely replaced with a simple (and, in most
cases, predictable) branch.
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