Understanding Java Garbage Collection
summary
Claim that garbage collection is the cheapest way to manage memory and that precise collectors must mark sweep and compact; shows that compaction is inevitable and causes pauses on the order of 1 second per GB when stop‑the‑world compaction runs. Uses generational copying for the young gen to get about 10–20× less work versus non‑generational designs. Presents Azul’s C4 as a concurrent, compacting collector (no fallback pauses) and reports it works in production, reducing pause-related tuning and improving throughput.
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chapters (6)
- 0:00Start
- 7:29The story of the good little architect
- 32:28Generational Collection
- 36:40The typical combos in commercial server JVMS
- 40:44Incremental Compaction
- 47:13Another way to cope: Creative Language
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