[R] 64 bit R slower than 32 bit R on Sun Sparc Solaris?

Jason Liao jg_liao at yahoo.com
Wed Sep 8 04:04:27 CEST 2004

Hello, everyone! I guess no one is still using R on Sun Sparc these
days. But our department has a (pretty new) two-CPU Sun server. We
recently compiled R as a 64 bit application and expected a performance
boost. But it runs 25-30% slower than the 32 bit version of R. Anyone
knows why this is so? Thanks!


Jason Liao, http://www.geocities.com/jg_liao
Dept. of Biostatistics, http://www2.umdnj.edu/bmtrxweb
University of Medicine and Dentistry of New Jersey
phone 732-235-5429, School of Public Health office
phone 732-235-8611, Cancer Institute of New Jersey office
moble phone 908-720-4205

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