microsoft/gctoolkit

Health v2 · maintenance only

Adoption not part of the score

1301 stars · 178 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

GCToolKit is a set of Java libraries for parsing HotSpot JVM garbage collection log files into discrete events. It provides an API for aggregating and analyzing GC data to build custom analyses of JVM managed memory behavior.

Use cases

• parse HotSpot GC log files into structured events
• analyze Java heap occupancy after garbage collections
• build custom analytics on JVM garbage collection telemetry
• tune JVM memory management using GC log data
• aggregate GC pause and collection statistics
• diagnose memory issues in Java applications from logs

When to choose

• you need to programmatically analyze HotSpot GC logs in Java
• you want to build custom GC analysis or reporting tools
• you're tuning JVM garbage collection and need structured log parsing
• you need a maintained, MIT-licensed library for GC log parsing

When to avoid

• you need GC log parsing for non-HotSpot JVMs
• you want a ready-made GUI or dashboard rather than a library
• you need real-time GC monitoring rather than log file analysis

Facets

library · maturity active

parser monitoring analytics developer-tools developer-tools performance monitoring jvm cross-platform garbage-collection gc-logs jvm-tuning memory-analysis hotspot jvm

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markdown · JSON · MCP: product_card(name="microsoft/gctoolkit")