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profile Scilab Group Scilab Function profile
NAME
profile - extract execution profiles of a Scilab function
CALLING SEQUENCE
c=profile(fun)
PARAMETERS
fun : a Scilab function
c : a nx3 matrix containig the execution profiles
DESCRIPTION
To use profile the Scilab function must have been prepared for profiling
(see getf). For such function, When such a function is executed the
systems counts how many time each line is executed and how may cpu time
is spend for each line execution. These data are stored within the
function data structure. The profile function allows to extract these
data and return them in the two first columns of c. The c third column
gives a measure of interpetor effort for one execution of corresponding
line. Ith line of c corresponds to Ith line of the function (included
first) Note that, due to the precision of the processor clock (typically
one micro second), some executed lignes may appear with 0 cpu time even
if total cpu time really spend in their execution is large.
EXAMPLE
//define function and prepare it for profiling
deff('x=foo(n)',['if n==0 then'
' x=[]'
'else'
' x=0'
' for k=1:n'
' s=svd(rand(n+10,n+10))'
' x=x+s(1)'
' end'
'end'],'p')
//call the function
foo(10)
//get execution profiles
profile(foo)
//call the function
foo(20)
profile(foo) //execution profiles are cumulated
SEE ALSO
getf, deff, plotprofile, showprofile
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