Jaeger
Jaeger provides waterfall visualization for execution traces, similar to Grafana Tempo. Send OTLP traces via the collector:
grog traces export --format=otel --limit 1 --output /tmp/trace-otel.json
curl -X POST http://jaeger-collector:4318/v1/traces \ -H "Content-Type: application/json" \ -d @/tmp/trace-otel.jsonIn the Jaeger UI, search for service grog to find your build traces. Each build appears as a trace with one span per target, sorted by start time.