R on Windows running in RStudio produces a grossly incorrect result for memory.limit() (which should be in Mb) even though the command works perfect fine in the standard Windows RGui.
Here's what I get in a fresh session in RStudio on a machine with 16 Gb of RAM:
> memory.limit()
[1] 1.759219e+13
> sessionInfo()
R version 3.6.1 (2019-07-05)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17763)
Matrix products: default
locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_3.6.1 tools_3.6.1 packrat_0.5.0
and in the RGUI:
> memory.limit()
[1] 16111
which is correct.
Thoughts?
This is being tracked on this github issue
opened 02:54PM - 20 Jun 19 UTC
closed 09:07PM - 15 Oct 19 UTC
bug
reproducible
On Windows 10 64bit
Base R's memory.limit() function reports wildly different… results in (a) R Console and (b) RStudio 1.3.2xx's console for R 3.6.0.
R3.5.3 reports 16279, as expected on my system, in both RConsole and RStudio.
R3.6.0 reports 16279 (R Console) and erroneously reports 17592186044416 (RStudio console)
memory.limit() results:
. | R 3.5.3 | R 3.6.0
---|---|---
R Console | 16279 | 16279
RStudio 1.3.2xx | 16279 | 17592186044416
```
######################################################################################
# R 3.5.3 (R console)
######################################################################################
> Sys.info()
sysname release version machine
"Windows" "10 x64" "build 16299" "x86-64"
> R.version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major 3
minor 5.3
year 2019
month 03
day 11
svn rev 76217
language R
version.string R version 3.5.3 (2019-03-11)
nickname Great Truth
> rstudioapi::getVersion()
Error: RStudio not running
> memory.limit()
[1] 16279
> memory.size()
[1] 41.87
######################################################################################
# R 3.6.0 (R console)
######################################################################################
> Sys.info()
sysname release version machine
"Windows" "10 x64" "build 16299" "x86-64"
> R.version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major 3
minor 6.0
year 2019
month 04
day 26
svn rev 76424
language R
version.string R version 3.6.0 (2019-04-26)
nickname Planting of a Tree
> rstudioapi::getVersion()
Error: RStudio not running
> memory.limit()
[1] 16279
> memory.size()
[1] 42.77
######################################################################################
# R 3.5.3 (RStudio)
######################################################################################
> Sys.info()
sysname release version machine
"Windows" "10 x64" "build 16299" "x86-64"
> R.version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major 3
minor 5.3
year 2019
month 03
day 11
svn rev 76217
language R
version.string R version 3.5.3 (2019-03-11)
nickname Great Truth
> rstudioapi::getVersion()
[1] ‘1.3.236’
> memory.limit()
[1] 16279
> memory.size()
[1] 74.1
######################################################################################
# R 3.6.0 (RStudio)
######################################################################################
> Sys.info()
sysname release version machine
"Windows" "10 x64" "build 16299" "x86-64"
> R.version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major 3
minor 6.0
year 2019
month 04
day 26
svn rev 76424
language R
version.string R version 3.6.0 (2019-04-26)
nickname Planting of a Tree
> rstudioapi::getVersion()
[1] ‘1.3.236’
> memory.limit()
[1] 1.759219e+13
> memory.size()
[1] 43.41
######################################################################################
# R 3.5.3 (RStudio)
######################################################################################
> Sys.info()
sysname release version machine
"Windows" "10 x64" "build 16299" "x86-64"
> R.version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major 3
minor 5.3
year 2019
month 03
day 11
svn rev 76217
language R
version.string R version 3.5.3 (2019-03-11)
nickname Great Truth
> rstudioapi::getVersion()
[1] ‘1.3.260’
> memory.limit()
[1] 16279
> memory.size()
[1] 74.43
######################################################################################
# R 3.6.0 (RStudio)
######################################################################################
> Sys.info()
sysname release version machine
"Windows" "10 x64" "build 16299" "x86-64"
> R.version
_
platform x86_64-w64-mingw32
arch x86_64
os mingw32
system x86_64, mingw32
status
major 3
minor 6.0
year 2019
month 04
day 26
svn rev 76424
language R
version.string R version 3.6.0 (2019-04-26)
nickname Planting of a Tree
> rstudioapi::getVersion()
[1] ‘1.3.260’
> memory.limit()
[1] 1.759219e+13
> memory.size()
[1] 55.22
```
system
August 17, 2019, 3:31pm
3
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