Full_Name: R User
Version: 2.7.2 (default binary)
OS: Windows XP SP2
Submission from: (NULL) (83.25.29.163)
Hello!
I have conducted following experiment running simple R script:
for (i in 1:10000) {
a<-0
for (j in 1:1000)
a<-c(a,j)
}
profiled R.dll using Intel Vtune and obtained following results!!!
Func. Name Clocticks
locale2charset 46,58%
R_RunWeakRefFinalizer 20,85%
Rf_eval 8,77%
Rf_eval takes only about 9% of CPU time, a huge overhead on checking
locale character set!!! It seems that is the problem with family of
functions: c(), rbind(), cbind()
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