Stop-the-world event
A stop-the-world event is a runtime interval during which application threads are suspended while global runtime work, commonly garbage collection, is performed.
100 Go Mistakes and How to Avoid Them
A stop-the-world period is an interval during which application execution is paused while runtime work such as garbage collection is performed.
- How it is used
- Explains application latency during garbage-collection tuning and sudden workload growth.
- How deep it goes
- Explains the two GC stop-the-world phases and tuning consequences, but stops short of runtime implementation internals.
- Examples
- Uses sudden million-user surges, GC-frequency figures, GOGC changes, and a one-gigabyte allocation.
- What you can do after
- Diagnose GC pause pressure with gctrace and evaluate GOGC or preallocation changes against workload-driven latency.
Read how 100 Go Mistakes and How to Avoid Them explains stop-the-world event →
Troubleshooting Java, Second Edition
A stop-the-world phase is a garbage-collection phase during which application threads are paused.
- How it is used
- Diagnoses latency spikes by correlating prolonged application pauses with GC-log frequency and duration.
- How deep it goes
- Defines paused application threads and evaluates recurring pause durations, stopping short of explaining collector internals.
- Examples
- Uses escalating young and full GC pauses, including 2.567-second and 5.321-second events, as diagnostic evidence.
- What you can do after
- Diagnose recurring GC-related latency by inspecting pause duration, event frequency, and memory reclaimed.
Read how Troubleshooting Java, Second Edition explains stop-the-world event →
Related concepts
- garbage collectionpart of · Garbage collection is an automated memory- or storage-management process that identifies objects or data no longer reachable or needed and reclaims or deletes them.
- full GC cycleproduced by · A full GC cycle is a garbage-collection operation that examines and processes the entire heap rather than only a subset of memory.
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