Android ART Optimization in XuanTie C920

on YouTube ↗16m

" summary

Android ART is ported to RV64GC and Android 12 with an implemented interpreter, JIT/AoT compilers and GC; upstreaming completes interpreter (Mar 2023), ENT interpreter (Jun 2023) and the Dex compiler (Oct 2023). Boot time falls from ~20 minutes to ~1 minute then to ~47 seconds on TH1520. Benchmarks (CaffeineMark, LinpackJava, binarytrees, etc.) show ~20% gain on CaffeineMark, >30% in scientific math and up to 5× on small tests after adding ~50 custom instructions and bit-manipulation extensions; CodeCache and oat performance both improve.

AI-written summary · about

" chapters (7)

1. 0:00Introduction to Android ART
2. 3:30ART compilation strategies
3. 5:16Dex compiler architecture
4. 6:01History of RISC-V porting
5. 9:29Upstreaming and contributions
6. 10:55Instruction set performance
7. 13:38Future hardware and ABI plans

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