system.idle: Idle

In RBigData/pbdPAPI: Programming with Big Data --- Interface to PAPI

Description

Measuring idle cycles.

Usage

system.idle(expr, events = "float", gcFirst = TRUE, burnin = TRUE)

Arguments

expr	A valid R expression to be profiled.
events	The class of processing unit to profile; options are "float", "int", "numeric", "branch", "load", and "all".
gcFirst	logical; determines if garbage collection should be called before profiling.
burnin	logical; determines if the function should first be evaluated with an empty expression.

Details

This function measures the evaluation of the provided expression, expr, for the number of cycles that specific specialized processing units are idle. The additional arguments, gcFirst and burnin, can be toggled to better simulate the target context.

Value

The results of the requested PAPI events are returned, in a named list, with values stored in double precision.

Examples

## Not run: 
library(pbdPAPI)

system.idle(1+1, events="float")

## End(Not run)

RBigData/pbdPAPI documentation built on May 8, 2019, 5:48 a.m.