testing.TB.Logf
standard libraryThe 1117th most-called standard-library method by production calls. Called 907 times across 114 modules; 577 of those run outside tests and generated code.
- prod calls
- 577
- non-test, non-generated
- all calls
- 907
- total callsites
- modules
- 114
- distinct callers
- in loop
- 19%
- of prod calls
- in tests
- 36%
- 330 calls
- resolved
- 1%
- 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 method<1%Reached through an embedded type.
- Interface method99%Called through an interface. The runtime target may differ.
- Method value<1%A method captured as a value, then called.
who calls this
Notable callers
Production calls into TB.Logf from notable Go projects. Open one on the map to see what else it hammers.
- Tailscale 77 13%
- HashiCorp 66 11%
- containerd 39 7%
- Docker 33 6%
- Kubernetes 27 5%
where it's called
Callsites in the wild
12 representative callsites of 907, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
- in loop
-
golang-migrate/migrate @v3.5.4+incompatible
in loop - in loop
-
jackc/pgx @v3.6.2+incompatible
in loop - in loop
-
ory/kratos @v1.3.1
in loop - in loop
- in loop
- in loop
-
seaweedfs/seaweedfs @v0.0.0-20260805044234-3c549b33ab8d
in loop - in loop
top callers
The modules that reach for it
The modules that call TB.Logf most in this snapshot.
- github.com/sagernet/tailscale10912%
- github.com/tailscale/tailscale10912%
- tailscale.com10912%
- github.com/hashicorp/boundary748%
- github.com/restic/restic455%
siblings
More from testing
The other most-called members in this package. See all →