Ivan Bessonov created IGNITE-22544:
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Summary: Commands marshalling appears to be slow
Key: IGNITE-22544
URL: https://issues.apache.org/jira/browse/IGNITE-22544
Project: Ignite
Issue Type: Improvement
Reporter: Ivan Bessonov
We should benchmark the way we marshal commands using optimized marshaller and
make it faster. Some obvious places:
* byte buffers pool - we can replace queue with a manual implementation of
Treiber stack, it's trivial and doesn't use as many CAS/volatile operations
* new serializers are allocated every time, but they can be put into static
final constants instead, or cached in fields of corresponding factories
* we can create a serialization factory per group, not per message, this way
we will remove unnecessary indirection. Group factory can use {{{}switch{}}},
like in Ignite 2, which would basically lead to static dispatch of deserializer
constructors and static access to serializers, instead of dynamic dispatch
(virtual call), which should be noticeably faster
* profiler might show other simple places, we must also compare
{{OptimizedMarshaller}} against other serialization algorithms in benchmarks
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