log/slog.Logger.Warn
standard libraryThe 456th most-called standard-library method by production calls. Called 1,900 times across 65 modules; 1,872 of those run outside tests and generated code.
2% in production calls vs 2026-W39 (1,833 → 1,872)
- prod calls
- 1,872
- non-test, non-generated
- all calls
- 1,900
- total callsites
- modules
- 65
- distinct callers
- in loop
- 29%
- of prod calls
- in tests
- 1%
- 28 calls
- resolved
- 100%
- to a known target
resolution mix
How each call resolves
How each call was attributed. Only resolved kinds, where the target function is known, count toward the ranking. Interface dispatch and unresolved receivers are reported separately and never guessed. Read the taxonomy →
- Concrete method99%A method on a value whose type is known exactly.
- Embedded method1%Reached through an embedded type.
- Method value<1%A method captured as a value, then called.
who calls this
Notable callers
Production calls into Logger.Warn from notable Go projects. Open one on the map to see what else it hammers.
- Cilium 764 41%
- Prometheus 230 12%
- Grafana 177 9%
- Helm 13 <1%
- ClickHouse 2 <1%
where it's called
Callsites in the wild
12 representative callsites of 1,900, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
-
miekg/dns @v0.6.117
cmd/atomdns/handlers/global/overload.go:31
in loop - in loop
-
anacrolix/torrent @v1.61.0
in loop - in loop
- in loop
-
aquasecurity/trivy-db @v0.0.0-20260924084935-ce4a319b4575
in loop -
benbjohnson/litestream @v0.5.17
in loop - in loop
- in loop
- in loop
-
charmbracelet/x/powernap @v0.1.6
pkg/registry/registry.go:219
in loop
top callers
The modules that reach for it
The modules that call Logger.Warn most in this snapshot.
- github.com/cilium/cilium76340%
- github.com/grafana/alloy1779%
- github.com/prometheus-operator/prometheus-operator1518%
- github.com/prometheus/prometheus1297%
- github.com/prometheus/alertmanager754%
siblings
More from log/slog
The other most-called members in this package. See all →