On 20 June 2005 at 08:29, bogdan romocea wrote: | I timed the same code (simulation with for loops) on the same box | (dual Xeon EM64T, 1.5 Gb RAM) under 3 OSs and was surprised by the | results: | Windows XP Pro (32-bit): Time difference of 5.966667 mins | 64-bit GNU/Linux (Fedora Core 4): Time difference of 6.966667 mins | 32-bit GNU/Linux (FC4): Time difference of 9.2 mins | (R 2.1.0 binaries downloaded from CRAN) | | I searched the archives and found out I should compile a non-SHLIB R | binary. Is there something else I should pay attention to when trying | to make R faster under GNU/Linux?
See 'help(Rprof)' for profiling support. It will tell how the time is spent by your loop, and I see no reason why you can't compare that across architectures too. Hth, Dirk -- Statistics: The (futile) attempt to offer certainty about uncertainty. -- Roger Koenker, 'Dictionary of Received Ideas of Statistics' ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html