01
Flame graph, call tree, and Top functions
Inspect the same samples as an interactive flame graph, hierarchical call tree, or ranked function table.
Product · Continuous profiling
See what the code was doing when the request slowed down.
Capture CPU, memory, goroutine, and lock profiles across services. Explore flame graphs, call trees, and top functions, then move between a hot frame and its correlated trace or span.
- profile ingest paths
- 3
- profile type families
- 9
- analysis views
- 3
- correlated context
- trace ↔ profile
Move from service symptoms to code-level evidence.
The core profiling path is open source. Enhanced comparison and large-window workflows stay explicitly edition-gated.
02
CPU, memory, goroutine, and lock profiles
Filter CPU, wall time, allocations, in-use memory, goroutines, lock contention, and generic samples by service and time.
03
Trace and span correlation
Open the profile associated with a trace or span, then return to the request path with its context intact.
04
Portable pprof archive
Archive canonical pprof with zstd on object storage while searchable metadata enters the governed profiles stream.
05
Three compatible ingest paths
Accept direct pprof uploads, Pyroscope-compatible pprof/folded/lines payloads, and OTLP Profiles over HTTP or gRPC.
06
Baseline diff (enhanced)
Compare a baseline with a target window to highlight hotter and cooler frames when profiling_enhanced is enabled.
workflow
From a slow request to the function consuming the budget.
Profiling adds code-level evidence to the same service, tenant, trace, and time context used by the rest of the investigation.
- 101 · Capture
Send profiles through an existing format
Use pprof, Pyroscope-compatible ingest, or OTLP Profiles without converting samples into a proprietary format.
- 202 · Scope
Filter by service, type, labels, and time
Select the affected workload and merge a bounded, representative window of matching profiles.
- 303 · Inspect
Find the hot function and its callers
Search frames, zoom the flame graph, or switch to the call tree and Top functions views.
- 404 · Correlate
Return to the request that exposed it
Use trace and span IDs carried by the samples to move between runtime cost and request behavior.
proof / shipped
Profiling is a shipped signal, with its limits documented.
The current API, storage path, and UI expose the open-source core; enhanced diff, larger windows, and server-side symbolization remain gated.
- pprof, Pyroscope-compatible, and OTLP Profiles ingest
- Window-merged flamebearer with bounded sampling
- Raw pprof download plus trace/span drill-down
- Explicit profiling_enhanced gates for advanced workflows
Product · Continuous profiling
See what the code was doing when the request slowed down.
Capture CPU, memory, goroutine, and lock profiles across services. Explore flame graphs, call trees, and top functions, then move between a hot frame and its correlated trace or span.