"Liaw, Andy" <[EMAIL PROTECTED]> writes: > On a dual Opteron 244 with 16GB ram, and > > [EMAIL PROTECTED]:cb1]% free > total used free shared buffers cached > Mem: 16278648 14552676 1725972 0 229420 3691824 > -/+ buffers/cache: 10631432 5647216 > Swap: 2096472 13428 2083044 > > ... using freshly compiled R-1.9.0: > > > system.time(x <- numeric(1e9)) > [1] 3.60 8.09 15.11 0.00 0.00 > > object.size(x)/1024^3 > [1] 7.45058
Well, > system.time(mean(x)) [1] 15.80 20.94 1323.01 0.00 0.00 > object.size(x)/1024^3 [1] 7.45058 I suppose I just have to look forward to RAM prices dropping... (Actually, the OS should be able to do better. Should be able to read the data from disk at about 20s/GB.) -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
