[R] --max-vsize and --max-nsize linux?

Christian Schulz ozric at web.de
Tue Jul 20 14:55:56 CEST 2004


Hi,

somtimes i have trivial recodings like this:

> dim(tt)
[1] 252382     98

system.time(for(i in 2:length(tt)){
              tt[,i][is.na(tt[,i])] <- 0
    })
    
...and a win2000(XP2000+,1GB) machine makes it in several minutes, but
my linux notebook (XP2.6GHZ,512MB) don't get success after some hours.

I recognize that the cpu load is most time relative small, but  the hardisk 
have a lot of work.

Is this a problem of --max-vsize and --max-nsize and i should play with that, 
because i can't believe that the difference of RAM is the reason?

Have anybody experience what is an "optimal" setting with i.e.
512 MB  RAM in Linux?

Many thanks for help and comments
regards,christian




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