Re: [Rd] R 2.14.1 memory management under Windows

2012-03-22 Thread Spencer Graves
Thanks for the replies and please excuse my failure to provide sessionInfo(): WINDOWS 7 WITH 8 GB RAM: > sessionInfo() R version 2.14.1 (2011-12-22) Platform: x86_64-pc-mingw32/x64 (64-bit) locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONET

Re: [Rd] R 2.14.1 memory management under Windows

2012-03-22 Thread Prof Brian Ripley
On 22/03/2012 06:11, Peter Meilstrup wrote: My guess would be that it's a matter of having swap space be a dedicated partition or fixed-size file (Linux, usually) versus swapping to a regular file that grows as needed (Windows and OS X, usually.) So if you defragmented your drive and set Windows

Re: [Rd] R 2.14.1 memory management under Windows

2012-03-22 Thread Peter Meilstrup
My guess would be that it's a matter of having swap space be a dedicated partition or fixed-size file (Linux, usually) versus swapping to a regular file that grows as needed (Windows and OS X, usually.) So if you defragmented your drive and set Windows to have a fixedsize swap file, it would probab

Re: [Rd] R 2.14.1 memory management under Windows

2012-03-21 Thread Joshua Wiley
On Wed, Mar 21, 2012 at 10:14 PM, Spencer Graves wrote: > I computed "system.time(diag(3))" with R 2.12.0 on Fedora 13 Linux with > 4 GB RAM and with R 2.14.1 on Windows 7 with 8 GB RAM: > > > Linux (4 GB RAM):  0, 0.21, 0.21 -- a fifth of a second > > > Windows 7 (8 GB RAM):  11.37 7.47 93.19

[Rd] R 2.14.1 memory management under Windows

2012-03-21 Thread Spencer Graves
I computed "system.time(diag(3))" with R 2.12.0 on Fedora 13 Linux with 4 GB RAM and with R 2.14.1 on Windows 7 with 8 GB RAM: Linux (4 GB RAM): 0, 0.21, 0.21 -- a fifth of a second Windows 7 (8 GB RAM): 11.37 7.47 93.19 -- over 1.5 minutes. Moreover, during most of that time, I could