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Call statistics summary

Source: R/call-stats.R
pv_call_stats.Rd

Shows call count, total time, self time, and time per call for each function. This is especially useful for identifying functions that are called many times (where per-call optimization or reducing call count would help).

Usage

pv_call_stats(x, n = NULL)

Arguments

x

A profvis object.

n

Maximum number of functions to return. If NULL, returns all.

Value

A data frame with columns:

  • label: Function name

  • calls: Estimated number of calls (based on stack appearances)

  • total_ms: Total time on call stack

  • self_ms: Time at top of stack (self time)

  • child_ms: Time in callees

  • ms_per_call: Average milliseconds per call

  • pct: Percentage of total profile time

Examples

p <- pv_example()
pv_call_stats(p)
#>                              label calls total_ms self_ms child_ms ms_per_call
#> 1                     process_data     1       70       0       70        70.0
#> 2                    generate_data     2       65      15       50        32.5
#> 3                            rnorm     4       30      30        0         7.5
#> 4                 x[i] <- rnorm(1)     4       20      20        0         5.0
#> 5 result[i] <- sqrt(abs(x[i])) * 2     1        5       5        0         5.0
#> 6                   transform_data     1        5       0        5         5.0
#>     pct
#> 1 100.0
#> 2  92.9
#> 3  42.9
#> 4  28.6
#> 5   7.1
#> 6   7.1