encoding/binary.littleEndian.Uint32
standard libraryThe 361st most-called standard-library method by production calls. Called 3,157 times across 198 modules; 2,504 of those run outside tests and generated code.
No change in production calls since 2026-W39.
- prod calls
- 2,504
- non-test, non-generated
- all calls
- 3,157
- total callsites
- modules
- 198
- distinct callers
- in loop
- 19%
- of prod calls
- in tests
- 7%
- 217 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 method97%A method on a value whose type is known exactly.
- Embedded method3%Reached through an embedded type.
estimate
Estimated relative cost
Roughly 0.00× the estimated relative cost of fmt.Sprintf . Benchmarked at 1.97 ns/op × 2,504 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 (Apple Silicon), go1.26.0), and static call counts are not runtime frequency. How this is estimated →
who calls this
Notable callers
Production calls into littleEndian.Uint32 from notable Go projects. Open one on the map to see what else it hammers.
- Go (golang.org/x) 60 2%
- Cilium 42 2%
- CockroachDB 39 2%
- Tailscale 22 <1%
- NATS 17 <1%
where it's called
Callsites in the wild
12 representative callsites of 3,157, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
- in loop
- in loop
- in loop
- in loop
- in loop
-
gitea.dev @v1.27.3
modules/packages/nuget/symbol_extractor.go:176
in loop -
AlexxIT/go2rtc @v1.9.14
in loop -
Binject/debug @v0.0.0-20260128230015-4e22595eaac6
in loop - in loop
-
FerretDB/wire @v0.1.7
in loop -
IBM/sarama @v1.61.1
in loop
top callers
The modules that reach for it
The modules that call littleEndian.Uint32 most in this snapshot.
- github.com/sagernet/gvisor73523%
- github.com/gogo/protobuf2167%
- github.com/diskfs/go-diskfs2147%
- github.com/planetscale/vtprotobuf1595%
- github.com/hirochachacha/go-smb21334%
siblings
More from encoding/binary
The other most-called members in this package. See all →