[R] Question about R performance on UNIX/LINUX with different memory/swap configurations

Does anyone have any guidance on swap and memory configuration when running R v2.15.1 on UNIX/LINUX? Through some benchmarking across multiple hardware (UNIX, LINUX, SPARC, x86, Windows, physical, virtual) it seems that the smaller memory machines have an advantage. Typically my organization

[R] Where is the R configuration file or how to override R compilers

I have a question about how one can modify or override the compilers that R uses for package installations? Or if perhaps this configuration is in some editable file somewhere. Initially I built the version of R 2.15.1 on Solaris SPARC (virtual T4), but found out the build was done as 32 bit.

[R] Question about R and multiple CPU's

I have a question about multiple cores and CPU's for running R. I've been running various tests on different types of hardware and operating systems (64 bit, 32 bit, Solaris, Linux, Windows, RV.10, .12, .15, .15.1.) Generally speaking, it seems that for a single user and process that R prefers