Patterns for high-performance C#
summary
RavenDB 4.0 work focuses on shaving nanoseconds off hot paths by removing allocations, moving parts to unmanaged memory and rewriting key subsystems in C#. Built a custom byte-string/span to avoid GC churn, a streaming JSON parser to replace stateful parsing, and in-C# LC4 compression. Measured wins include halving object pool allocation cost, about 3x faster specialized dictionary paths and a reported 6.6x improvement on a JSON writer between release and a later patch.
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chapters (5)
- 0:00Performance fundamentals
- 16:09Micro-optimization tactics
- 28:21Metaprogramming techniques
- 41:52Case study implementation
- 59:50Design tenants and conclusion
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