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callcount

bytes.Buffer.Bytes

standard library

The 141st most-called standard-library method by production calls. Called 42,578 times across 1,036 modules; 7,442 of those run outside tests and generated code.

0% in production calls vs 2026-W39 (7,430 → 7,442)

All of bytes → Docs on pkg.go.dev ↗

prod calls
7,442
non-test, non-generated
all calls
42,578
total callsites
modules
1,036
distinct callers
in loop
10%
of prod calls
in tests
24%
10,052 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.

estimate

Experimental

Estimated relative cost

Roughly 0.00× the estimated relative cost of fmt.Sprintf . Benchmarked at 1.96 ns/op × 7,442 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 Buffer.Bytes 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 42,578, prioritizing in-loop and non-test usage. We link to source, never display it.

Buffer.Bytes · 12 of 42,578 callsites

top callers

The modules that reach for it

The modules that call Buffer.Bytes most in this snapshot.

  • google.golang.org/api10,73725%
  • github.com/aws/aws-sdk-go-v2/service/ec23,1107%
  • github.com/aws/aws-sdk-go-v2/service/rds1,2253%
  • github.com/aws/aws-sdk-go-v2/service/redshift1,1093%
  • github.com/aws/aws-sdk-go-v2/service/cloudfront9052%

siblings

More from bytes

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