btraceio/btrace

Health v2 · maintenance only

Adoption not part of the score

5991 stars · 957 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

BTrace is a production-safe dynamic tracing tool for Java applications that attaches to live JVMs and injects tracing code via bytecode instrumentation, with no restarts or recompilation. It supports method entry/exit probes, timing, exception tracking, and custom probe scripts with low overhead.

Use cases

• trace slow methods in a running java application
• debug production jvm without restarting
• track where exceptions are created in java
• measure method execution times at runtime
• instrument java methods without recompiling
• diagnose performance issues in live jvm
• attach tracing agent to running java process

When to choose

• you need to diagnose a running production JVM without downtime
• you want lightweight, safe runtime tracing of Java methods
• you need ad-hoc instrumentation without modifying or recompiling code

When to avoid

• you need full continuous observability with metrics dashboards rather than ad-hoc tracing
• your target is a non-JVM language
• you require deep CPU/memory profiling with flame graphs, where a dedicated profiler fits better

Facets

cli-tool · maturity active

tracing monitoring developer-tools logging developer-tools performance monitoring jvm cli cross-platform bytecode-instrumentation java-agent observability profiling diagnostics dtrace runtime-instrumentation production-debugging command-line

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markdown · JSON · MCP: product_card(name="btraceio/btrace")