Skip to content
callcount

sort.Slice

standard library

The 19th most-called standard-library function by production calls. Called 1,410 times across 116 modules; 1,115 of those run outside tests and generated code.

2% in production calls vs 2026-06-sample (1,135 → 1,115)

All of sort → Docs on pkg.go.dev ↗

prod calls
1,115
non-test, non-generated
all calls
1,410
total callsites
modules
116
distinct callers
in loop
20%
of prod calls
in tests
15%
212 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 →

  • Package function100%A direct call to an exported package function, resolved by type.

estimate

Experimental

Estimated relative cost

Roughly 0.47× the estimated relative cost of fmt.Sprintf . Benchmarked at 268 ns/op × 1,115 production calls, normalized so fmt.Sprintf = 1.0.

This is not dollars and not a verdict. Per-op time depends heavily on inputs (argument sizes, contention, patterns), the benchmark ran on a single machine (darwin/arm64, go1.22.5), and static call counts are not runtime frequency. How this is estimated →

who calls this

Notable callers

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

where it's called

Callsites in the wild

6 representative callsites of 1,410, prioritizing in-loop and non-test usage. We link to source, never display it.

Slice · 6 of 1,410 callsites

top callers

The modules that reach for it

The modules that call Slice most in this snapshot.

  • k8s.io/apimachinery41229%
  • github.com/spf13/cobra25218%
  • github.com/fatih/color13910%

siblings

More from sort

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