ThinkerQAQ

调优

Java · 6 notes

  1. Diagnosing Java Production Incidentshistorical

    A production Java incident workflow covering CPU, latency, threads, heap, GC, native memory, I/O, and evidence preservation.

  2. JVM Performance Tuning Methodologyhistorical

    A hypothesis-driven performance tuning workflow from SLO and bottleneck identification through measurement, change, and regression validation.

  3. Java OOM Examples and Diagnosishistorical

    How to distinguish heap retention, allocation pressure, Metaspace, direct/native memory, and thread-related out-of-memory failures.

  4. Java Performance Diagnostic Toolshistorical

    A practical guide to JFR, jcmd, thread dumps, heap dumps, profilers, GC logs, and OS/container metrics.

  5. JVM Tuning Parametershistorical

    A measurement-first approach to JVM memory and GC parameters, avoiding obsolete one-size-fits-all tuning recipes.

  6. Analyzing JVM GC Logshistorical

    What to extract from GC logs: pause distribution, allocation pressure, live-set behavior, promotion, full collections, and concurrent-cycle health.