mcreadRDS: Multi-threaded readRDS

In traversc/trqwe: Performance oriented statistical metrics and utility functions.

Description

Uses the pigz utility to improve loading large R objects. This is compatible with saveRDS and readRDS functions. Requires pigz (sudo apt-get install pigz on Ubuntu).

Uses the pigz utility to improve loading large R objects. This is compatible with saveRDS and readRDS functions. Requires pigz (sudo apt-get install pigz on Ubuntu).

Usage

mcreadRDS(file, mc.cores = min(parallel::detectCores(), 4))

mcreadRDS(file, mc.cores = min(parallel::detectCores(), 4))

Arguments

file	The filename of the rds object.
mc.cores	How many cores to use in pigz. The program does not seem to benefit after more than about 4 cores.
file	The filename of the rds object.
mc.cores	How many cores to use in pigz. The program does not seem to benefit after more than about 4 cores.

Value

The R object.

The R object.

See Also

http://stackoverflow.com/questions/28927750/

http://stackoverflow.com/questions/28927750/

Examples

x <- sample(1e4, 1e7, replace=T)
saveRDS(x, file="temp.Rds")
xmc <- mcreadRDS("temp.Rds")
x <- sample(1e4, 1e7, replace=T)
saveRDS(x, file="temp.Rds")
xmc <- mcreadRDS("temp.Rds")

traversc/trqwe documentation built on Dec. 4, 2020, 4:21 a.m.