Just to bore everyone but Simon and me to tears, here is 'fair' timing2.sh variant using an r version that does not autoload().
e...@ron:/tmp$ ./timing3.sh --- our r calling summary() 20 times real 0m3.375s user 0m3.100s sys 0m0.268s --- GNU R's Rscript calling summary() 20 times real 0m4.328s user 0m3.880s sys 0m0.412s --- our (empty) r calling summary() 20 times real 0m2.517s user 0m2.284s sys 0m0.204s --- GNU R's (empty) Rscript calling summary() 20 times real 0m2.756s user 0m2.340s sys 0m0.356s --- GNU R calling summary() 20 times real 0m8.401s user 0m7.812s sys 0m0.528s e...@ron:/tmp$ It's back to where we were, but Simon's point on library() taking a good chunk of time is acknowledge. I'll add a new switch to littler, which is due for a new release anyway providing the new tempdir option that suggested by Paul Gilbert a while back. Cheers, Dirk -- Three out of two people have difficulties with fractions. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel