Skip to content
callcount

encoding/csv.Reader.Read

standard library

The 3222nd most-called standard-library method by production calls. Called 203 times across 94 modules; 184 of those run outside tests and generated code.

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

prod calls
184
non-test, non-generated
all calls
203
total callsites
modules
94
distinct callers
in loop
46%
of prod calls
in tests
9%
19 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 method100%A method on a value whose type is known exactly.
  • Embedded method<1%Reached through an embedded type.

estimate

Experimental

Estimated relative cost

Roughly 0.01× the estimated relative cost of fmt.Sprintf . Benchmarked at 960.3 ns/op × 184 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 Reader.Read 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 203, prioritizing in-loop and non-test usage. We link to source, never display it.

Reader.Read · 12 of 203 callsites

top callers

The modules that reach for it

The modules that call Reader.Read most in this snapshot.

  • github.com/GoesToEleven/GolangTraining147%
  • github.com/docker/cli94%
  • github.com/grafana/k673%
  • github.com/influxdata/telegraf73%
  • go.k6.io/k673%

siblings

More from encoding/csv

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