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Benchmarks

Test Conditions

  • Stack versions: Mimir 3.0.x, Loki 3.7.x, Tempo 2.x, Pyroscope 1.20.x, Grafana 12.4.x
  • Date: April 2026
  • Note: Benchmarks reflect both published Grafana Labs data and community reports. Individual component benchmarks are covered in detail in the Grafana Benchmarks folder.

Per-Component Throughput

Component Metric Benchmark Conditions
Mimir Active series 1B+ Documented by Grafana Labs
Mimir Ingestion rate 30M+ samples/sec Multi-tenant, microservices mode
Mimir Storage efficiency ~1.3 bytes/sample Compressed TSDB blocks
Loki Ingestion rate 1 TB+/day Label-indexed, object storage
Loki Compression ratio 10–20:1 Snappy/GZIP on chunks
Loki Query (label-filtered) Sub-second When label cardinality < 10k
Tempo Ingestion rate 100M+ spans/day Parquet format, object storage
Tempo Trace ID lookup < 200ms Direct lookup
Tempo TraceQL search 1–30s Depends on time range and selectivity
Pyroscope Profiles ingested Millions/hour Low overhead (<1% CPU typically)

Stack-Level Benchmarks

End-to-End Latency (Ingestion → Queryable)

Signal Typical Latency Notes
Metrics (recent) < 15 seconds Queried from ingester memory
Metrics (historical) < 5 seconds (cold) Object storage + cache
Logs (recent) < 10 seconds Queried from ingester memory
Logs (historical) 1–30 seconds Depends on time range and label selectivity
Traces (by ID) < 500ms Bloom filter lookup
Traces (search) 2–60 seconds Object storage scan

Scale Limits (Documented Production)

Dimension Scale Source
Salesforce 70M metrics/min, 120k alerts/min GrafanaCON
Maersk Enterprise-wide centralized observability GrafanaCON case study
Grafana Cloud Multi-billion active series globally Grafana Labs

Cost Comparison: LGTM vs Alternatives

At 1M Active Series + 100 GB/day Logs + 50M Spans/day

Stack Estimated Monthly Cost Operational Burden Vendor Lock-in
Self-hosted LGTM $1,000–3,000 High (4+ backends) Low
Grafana Cloud Pro $1,500–4,000 Low (managed) Low-Medium
SigNoz (self-hosted) $500–1,500 Medium (single binary) Low
Datadog $5,000–17,000 Very Low (SaaS) High
New Relic $2,500–8,000 Very Low (SaaS) Medium
ELK + Prometheus + Jaeger $2,000–6,000 Very High (3 stacks) Low

Costs are rough estimates for mid-2026. Vary significantly by cloud provider, retention, and configuration.

Why LGTM Is Cheaper

  1. Object storage costs pennies — S3 Standard: ~$0.023/GB/month vs EBS gp3: ~$0.08/GB/month
  2. Label-only indexing (Loki) — 10–100x less storage than Elasticsearch full-text indexing
  3. No index (Tempo) — traces stored as Parquet on object storage, no expensive index cluster
  4. Compression — Loki achieves 10–20:1 compression on log chunks
  5. Open source — no per-host, per-user, or per-GB licensing fees

Caveats

  • These benchmarks assume microservices mode for production loads
  • Loki performance degrades severely with high label cardinality (> 50k active streams)
  • Tempo TraceQL search is slower than indexed alternatives (Jaeger/Elasticsearch) but dramatically cheaper
  • Object storage latency varies by cloud provider and region — always co-locate in the same AZ
  • Memcached caching is essential for production query performance — without it, queries hit object storage directly

Sources

URL Source Kind Authority Date
https://grafana.com/docs/mimir/latest/references/architecture/ docs primary 2026-04-10
https://grafana.com/docs/loki/latest/get-started/overview/ docs primary 2026-04-10
https://grafana.com/docs/tempo/latest/getting-started/ docs primary 2026-04-10
https://grafana.com/pricing/ docs primary 2026-04-10
https://grafana.com/about/events/grafanacon/ conference primary 2026-04-10