Complete R Session Size

Question

Due to I constantly reach memory size limit in my R Session (8GB Windows PC) I start to remove big objects loaded in. However once I reach this limit, removing objects seems not to work.

So, I was wondering if there's a way to get the R Session size. I know that it's possible to retrieve objects' size (saw in this thread).I want to know if there's a way to count the complete R Session size though (loaded packages, objects, etc).

Thank you!

Answer 1

I personally use this function to get the available memory:

getAvailMem <- function(format = TRUE) {

  gc()

  if (Sys.info()[["sysname"]] == "Windows") {
    memfree <- 1024^2 * (utils::memory.limit() - utils::memory.size())
  } else {
    # http://stackoverflow.com/a/6457769/6103040
    memfree <- 1024 * as.numeric(
      system("awk '/MemFree/ {print $2}' /proc/meminfo", intern = TRUE))
  }

  `if`(format, format(structure(memfree, class = "object_size"),
                      units = "auto"), memfree)
}