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#| include: falseknitr::opts_chunk$set(collapse=TRUE,comment="#>",fig.path="man/figures/README-",out.width="100%")

This package provides a graphic device that does no operations. Thismakes it suitable for benchmarking functions that produce graphics as itremoves the device implementation from the equation. In contrast to thenulldev() function fromR.devices package thisdevice is a true device implementation that simply does nothing ratherthan callingpdf() with a temporary file connection.

You can installdevoid with the remotes package:

# install.packages('pak')pak::pak('r-lib/devoid')

devoid provides a single functionvoid_dev() which is used much likeany other device:

library(devoid)void_dev()plot(1:10,1:10)dev.off()#> quartz_off_screen#>                 2

Using it we can now see how much drawing time e.g. the png device isresponsible for:

point_coord<- seq_len(1e4)void_plot<-function() {  void_dev()  plot(point_coord,point_coord)  dev.off()NULL}png_plot<-function() {  png(tempfile())  plot(point_coord,point_coord)  dev.off()NULL}res<-bench::mark(devoid= void_plot(),png= png_plot(),min_iterations=50)plot(res)