Summarize a `profvis` Profile — profvis

Tabulates the samples of a [profvis::profvis()] profile by function: memory, memory increments, call frequency, stack depth, and memory over time.

Usage

profvis_summary(prof)

Arguments

prof: A `profvis` object.

Value

A named list of tibbles:

`memory_by_function`: Summed `memalloc`, share, calls, and memory per call, by function.
`memory_increment_by_function`: Summed `meminc`, share, calls, and increment per call, by function.
`calls_by_function`: Samples per function and share.
`deepest_calls`: Each function's deepest sample, deepest first.
`memory_over_time`: Summed `memalloc` per sample time.

Details

Memory columns sum the sampled `memalloc`/`meminc` values, so they rank functions by how much memory was allocated while they were on the stack; they are not exact allocation totals.

Examples

if (FALSE) { # \dontrun{
prof <- profvis::profvis(for (i in 1:50) sort(runif(1e5)))
profvis_summary(prof)$memory_by_function
} # }