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Tech18 min read

JIT Toolchain: Building a Disassembler and CPU Emulator for Database Development

by Jaepil Jeong | January 19, 2026

The essential infrastructure that makes Copy-and-Patch JIT development and debugging practical. We explore the multi-architecture disassembler for validation and software CPU emulator for cross-platform testing and debugging.

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Tech16 min read

Copy-and-Patch JIT: Achieving Native Code Performance with Microsecond Compilation

by Jaepil Jeong | January 17, 2026

How Cognica Database Engine breaks the JIT compilation latency barrier. We explore Copy-and-Patch JIT compilation, a technique that achieves 2-10x speedup over interpretation while keeping compilation time under one millisecond per kilobyte of bytecode.

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