OpenEuphoria

Long start-up time of a program with include std/

• Posted by Insolor Feb 28, 2012
• 2466 views

Hi to everyone.

I have written a test program to measure a start-up time of a program in Euphoria:

include std/console.e 
include std/math.e 
 
function runit(sequence s, integer n) 
    sequence test = repeat(0,n+2) 
    atom t,d 
    for i = 1 to n do 
        t = time() 
        system("eui " & s, 2) 
        test[i] = time()-t 
        test[n+1] += test[i] 
    end for 
     
    test[n+1] /= n 
     
    for i = 1 to n do 
        d = abs(test[n+1]-test[i]) 
        if d>test[n+2] then 
            test[n+2] = d 
        end if 
    end for 
    return test 
end function 
 
constant header = "   #1       #2       #3    average   delta\n" 
constant format = "%1.5f  %1.5f  %1.5f  %1.5f  %1.5f\n" 
puts(1,"Running an empty program:\n") 
puts(1,header) 
printf(1,format,runit("NUL",3)) 
 
system("echo include NUL > nulinc.exw") 
puts(1,"\n") 
puts(1,"Running a program that includes an empty file:\n") 
puts(1,header) 
printf(1,format,runit("nulinc",3)) 
 
system("echo include std/console.e > stdcon.exw") 
puts(1,"\n") 
puts(1,"Running a program with an only 'include std/console.e' line:\n") 
puts(1,header) 
printf(1,format,runit("stdcon",3)) 
 
any_key() 

On ASUS notebook with 1.73GHz CPU and 0.98 GB RAM, Win XP SP3, I have got these results:

Running an empty program: 
   #1       #2       #3    average   delta 
0.25000  0.29700  0.21900  0.25533  0.04167 
 
Running a program that includes an empty file: 
   #1       #2       #3    average   delta 
0.26600  0.28100  0.25000  0.26567  0.01567 
 
Running a program with an only 'include std/console.e' line: 
   #1       #2       #3    average   delta 
1.98400  2.03200  2.15600  2.05733  0.09867 
Press Any Key to continue... 

Why the start-up time of the third program is so long? I guess it is because of the new advanced preprocessor features, used in the standard includes, am I right? Is there any workaround?

P.S. eui version is

Euphoria Interpreter v4.0.3 development 
   Windows, Using Managed Memory 
   Revision Date: 2011-06-24 13:43:18, Id: 4985:26b65e77e3d9