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Detect recursive functions

Source: R/recursive.R
pv_recursive.Rd

Identifies functions that call themselves (directly recursive) or appear multiple times in the same call stack. Recursive functions in hot paths are often optimization targets.

Usage

pv_recursive(x)

Arguments

x

A profvis object.

Value

A data frame with columns:

  • label: Function name

  • max_depth: Maximum recursion depth observed

  • avg_depth: Average recursion depth when recursive

  • recursive_samples: Number of samples where function appears multiple times

  • total_samples: Total samples where function appears

  • pct_recursive: Percentage of appearances that are recursive

  • total_ms: Total time on call stack

  • pct_time: Percentage of total profile time

Examples

p <- pv_example("recursive")
pv_recursive(p)
#>     label max_depth avg_depth recursive_samples total_samples pct_recursive
#> 1 recurse         5         4                 3             3           100
#>   total_ms pct_time
#> 1       30      100