How to check the amount of RAM in R

问题

I want to make a function that imports data in different numbers of batches depending on how much RAM is available on someones system. But how can I find the amount of available RAM in R? I can use memory.size() but that only works for Windows.

回答1:

Given the warnings concerning platform-dependency discussed in the earlier comment, you could for example parse /proc/meminfo on Linux:

$ grep MemFree /proc/meminfo 
MemFree:          573660 kB
$ awk '/MemFree/ {print $2}' /proc/meminfo 
565464

You could try the second approach via system(..., intern=TRUE), or even via a pipe connection.

Edit some 5+ years later: In R, and just following what the previous paragraph hinted at:

R> memfree <- as.numeric(system("awk '/MemFree/ {print $2}' /proc/meminfo", 
+                               intern=TRUE))
R> memfree
[1] 3342480
R> 

回答2:

Now you can do that with benchmarkme::get_ram function.

https://cran.r-project.org/web/packages/benchmarkme/benchmarkme.pdf

来源：https://stackoverflow.com/questions/6457290/how-to-check-the-amount-of-ram-in-r