testing.common.Fatalf
standard libraryThe 124th most-called standard-library method by production calls. Called 456,453 times across 1,335 modules; 8,132 of those run outside tests and generated code.
0% in production calls vs 2026-W39 (8,113 → 8,132)
- prod calls
- 8,132
- non-test, non-generated
- all calls
- 456,453
- total callsites
- modules
- 1,335
- distinct callers
- in loop
- 19%
- of prod calls
- in tests
- 98%
- 448,315 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 →
- Embedded method100%Reached through an embedded type.
- Method value<1%A method captured as a value, then called.
who calls this
Notable callers
Production calls into common.Fatalf from notable Go projects. Open one on the map to see what else it hammers.
- Kubernetes 840 10%
- VictoriaMetrics 254 3%
- containerd 230 3%
- Vault 172 2%
- Terraform 104 1%
where it's called
Callsites in the wild
12 representative callsites of 456,453, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
-
x/vcr @v0.1.1
recorder.go:45
in loop - in loop
-
cockroachdb/cockroach @v19.2.12+incompatible
in loop - in loop
- in loop
-
moby/moby @v28.5.2+incompatible
in loop -
etcd-io/etcd @v2.3.8+incompatible
in loop - in loop
- in loop
- in loop
- in loop
top callers
The modules that reach for it
The modules that call common.Fatalf most in this snapshot.
- github.com/esengine/DeepSeek-Reasonix24,9035%
- github.com/larksuite/cli23,0105%
- github.com/kubernetes/kubernetes15,2523%
- github.com/infiniflow/ragflow14,9593%
- github.com/gastownhall/beads14,6133%
siblings
More from testing
The other most-called members in this package. See all →