On Sun, 7 Aug 2005 [EMAIL PROTECTED] wrote: > Thanks, very helpful. > > Is there some way to adjust those GC triggers in advance?
Almost: that is what the statrtup flags such as --min-vsize help do. > -----Original Message----- > From: Prof Brian Ripley [mailto:[EMAIL PROTECTED] > Sent: Thu 8/4/2005 4:15 PM > To: Stone, Glenn (CMIS, North Ryde) > Cc: [email protected] > Subject: Re: [R] Odd timing behaviour in reading a file > Please see the gcFirst argument to system.time, which you should set to > TRUE for such timings. Your second run is paying to GC the results of the > first, most likely. > > Beyond that, R adjusts its GC triggers based on usage, and when you first > start using large objects the trigger levels will grow and generally > things will speed up. Set gcinfo(TRUE) to watch what is happening. [...] -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
