This is not a criticism of R, but R runs much slower on one of my machines than
it does on the others, so something is wrong with that machine, but I don't
know where to look for a remedy. Here are the details:
I have a 32-bit win xp machine running at 2.66Ghz and a 64-bit win 7 machine
running at 3.00 GHz. I have noticed that the win 7 machine seems slower, so I
ran the rbenchmark example of creating a vector from 1:10^8 five times and the
win xp machine scored 1.6 seconds while the win 7 machines scores 3.0 seconds.
Both machines are about 3 years old. I expect a 64-bit to be slightly slower
for some operations, but I just bought a new 64-bit PC for home that I runs at
3.1 GHz and it scores 0.64 seconds. Therefore I will likely buy a new PC to
replace my win 7 machine, but its still nagging me that a Xeon 3.0 processor
would be so much slower than my other machines. The machines have different
numbers of cores, but that shouldn't matter since R is single threaded.
I have a access to a number of machines at work, but the win 7 machine is the
only one with 16Gb of RAM. Like I said, I will probably replace the win 7
machine, but if anyone has any suggestions I would love to try them.
Thanks,
Roger
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