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callcount

bytes.Buffer.WriteByte

standard library

The 239th most-called standard-library method by production calls. Called 4,519 times across 420 modules; 4,177 of those run outside tests and generated code.

1% in production calls vs 2026-W37 (4,149 → 4,177)

All of bytes → Docs on pkg.go.dev ↗

prod calls
4,177
non-test, non-generated
all calls
4,519
total callsites
modules
420
distinct callers
in loop
44%
of prod calls
in tests
8%
342 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 method80%A method on a value whose type is known exactly.
  • Embedded method20%Reached through an embedded type.

who calls this

Notable callers

Production calls into Buffer.WriteByte 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 4,519, prioritizing in-loop and non-test usage. We link to source, never display it.

Buffer.WriteByte · 12 of 4,519 callsites

top callers

The modules that reach for it

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

  • github.com/cockroachdb/cockroach43010%
  • github.com/auxten/postgresql-parser2766%
  • github.com/nats-io/nats-server/v2782%
  • github.com/shadow1ng/fscan772%
  • github.com/go-jose/go-jose/v3671%

siblings

More from bytes

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