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callcount

encoding/binary.PutUvarint

standard library

The 1940th most-called standard-library function by production calls. Called 375 times across 67 modules; 319 of those run outside tests and generated code.

1% in production calls vs 2026-W37 (315 → 319)

All of encoding/binary → Docs on pkg.go.dev ↗

prod calls
319
non-test, non-generated
all calls
375
total callsites
modules
67
distinct callers
in loop
30%
of prod calls
in tests
14%
52 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.

who calls this

Notable callers

Production calls into PutUvarint 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 375, prioritizing in-loop and non-test usage. We link to source, never display it.

top callers

The modules that reach for it

The modules that call PutUvarint most in this snapshot.

  • github.com/nats-io/nats-server/v2329%
  • github.com/klauspost/compress298%
  • github.com/cockroachdb/pebble/v2277%
  • github.com/influxdata/influxdb216%
  • github.com/blevesearch/zap/v11195%

siblings

More from encoding/binary

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