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4 Commits

Author SHA1 Message Date
Pratik Mankawde
3c8ca1b836 docs(telemetry): fix doc references to match pimpl architecture 
Replace references to non-existent TracingInstrumentation.h with
SpanGuard.cpp pimpl implementation that actually exists on this branch.
Update conditional compilation section to describe the pimpl approach.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-20 16:47:50 +01:00
Pratik Mankawde
49f9fe52ac docs(telemetry): update plan docs for FilteringSpanProcessor and discard() 
Add DiscardFlag.h and FilteringSpanProcessor references to the file
tree, key files table, and implementation summary in OpenTelemetryPlan.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-04-16 17:46:03 +01:00
Pratik Mankawde
913a4b794c docs: correct OTel overhead estimates against SDK benchmarks 
Verified CPU, memory, and network overhead calculations against
official OTel C++ SDK benchmarks (969 CI runs) and source code
analysis. Key corrections:

- Span creation: 200-500ns → 500-1000ns (SDK BM_SpanCreation median
  ~1000ns; original estimate matched API no-op, not SDK path)
- Per-TX overhead: 2.4μs → 4.0μs (2.0% vs 1.2%; still within 1-3%)
- Active span memory: ~200 bytes → ~500-800 bytes (Span wrapper +
  SpanData + std::map attribute storage)
- Static memory: ~456KB → ~8.3MB (BatchSpanProcessor worker thread
  stack ~8MB was omitted)
- Total memory ceiling: ~2.3MB → ~10MB
- Memory success metric target: <5MB → <10MB
- AddEvent: 50-80ns → 100-200ns

Added Section 3.5.4 with links to all benchmark sources.
Updated presentation.md with matching corrections.
High-level conclusions unchanged (1-3% CPU, negligible consensus).

Also includes: review fixes, cross-document consistency improvements,
additional component tracing docs (PathFinding, TxQ, Validator, etc.),
context size corrections (32 → 25 bytes).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-04-16 15:00:47 +01:00
Pratik Mankawde
ddf894dcb0 Phase 1a: OpenTelemetry plan documentation 
Add comprehensive planning documentation for the OpenTelemetry
distributed tracing integration:

- Tracing fundamentals and concepts
- Architecture analysis of rippled's tracing surface area
- Design decisions and trade-offs
- Implementation strategy and code samples
- Configuration reference
- Implementation phases roadmap
- Observability backend comparison
- POC task list and presentation materials

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-04-16 15:00:47 +01:00