writeCallgrindFile {proftools}

Write Out Profile Data in Callgrind Format

Description

Writes the profile data in callgrind format suitable for use with kcachegrind or qcachegrind.

Usage

writeCallgrindFile(pd, file = "Rprof.cg", GC = TRUE, dropSource = TRUE)

Arguments

pd

profile data as returned by readProfileData.

file

a connection or the name of the file where the callgrind output will be written.

GC

logical; if true include GC information.

dropSource

logical; if true drop initial stack entried from a source call and add a top level marker.

Details

The callgrind format is used by Valgrind's callgrind tool. The KDE tool kcachegrind can be used to display the file; kcachegrind displays the summary statistics, a call graph, and annotated source code if source information is available. kcachegrind is available in Linux and Windows; on Mac OSX qcachegrind is available.

Value

Used for side effect.

Author(s)

Luke Tierney

See Also

Rprof, summaryRprof, flatProfile, readProfileData, plotProfileCallGraph, profileCallGraph2Dot

Examples

pd <- readProfileData(system.file("samples", "glmEx.out", package="proftools"))
tmp <- tempfile()
writeCallgrindFile(pd, file = tmp)
file.show(tmp)
unlink(tmp)
## Not run: 
## If you have kcachegrind installed on a UNIX-like system then do:
tmp <- tempfile()
writeCallgrindFile(pd, file = tmp)
system(sprintf("kcachegrind 
unlink(tmp)
  
## End(Not run)