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#runtime
1 articles
01
2026-08-26
·
Compilers & Runtimes
·
★ MEMBER
·
10 min read
JIT and GC — Getting Faster While Running, Cleaning Up While Running
A just-in-time compiler and a garbage collector are both services that have to work without stopping the application. Hot spot detection, tiered compilation, inlining, speculation and deoptimization, generational GC, tri-color marking and write barriers — built up from zero, ending where you can read a GC log and a JIT log yourself.