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callcount

os/exec.Cmd.Start

standard library

The 666th most-called standard-library method by production calls. Called 1,862 times across 376 modules; 1,106 of those run outside tests and generated code.

0% in production calls vs 2026-W39 (1,104 → 1,106)

All of os/exec → Docs on pkg.go.dev ↗

prod calls
1,106
non-test, non-generated
all calls
1,862
total callsites
modules
376
distinct callers
in loop
7%
of prod calls
in tests
41%
756 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 method<1%Reached through an embedded type.

who calls this

Notable callers

Production calls into Cmd.Start from notable Go projects. Open one on the map to see what else it hammers.

where it's called

Callsites in the wild

12 representative callsites of 1,862, prioritizing in-loop and non-test usage. We link to source, never display it.

Cmd.Start · 12 of 1,862 callsites

top callers

The modules that reach for it

The modules that call Cmd.Start most in this snapshot.

  • github.com/traefik/traefik1418%
  • github.com/seaweedfs/seaweedfs724%
  • github.com/go-delve/delve633%
  • github.com/docker/docker412%
  • github.com/moby/moby412%

siblings

More from os/exec

The other most-called members in this package. See all →