On Mon, Jun 06, 2011 at 02:12:37PM +0200, Serge Hulne wrote:
> I used "wordcount" as a test to compare the processing speed of Vala against
> C:
>
>
> I obtained the following result:
>
> ---
> C:
> ---
> serge:vala serge2$ time wc ../shakespeare.txt
> 495200 2703240 15862370 ../shakespeare.txt
>
> real 0m0.194s
> user 0m0.176s
> sys 0m0.015s
>
> ---
> Vala:
> ---
> serge:vala serge2$ time ./hello
> lc = 495201. wc = 3170980
>
> real 0m2.258s
> user 0m2.223s
> sys 0m0.028s
>
>
> -------
>
> The vala code is as follows:
>
> class HelloWorld : GLib.Object {
> public static int main(string[] args) {
>
> var f = FileStream.open("../shakespeare.txt", "r");
> var line = "";
> var wc = 0;
> var lc = 0;
>
> while (!f.eof()) {
> line = f.read_line(); lc++;
> if (line == null) break;
> //stdout.printf("line = %s\n", line);
> var words = line.split(" ");
> for (int i=0; i<words.length; i++) {
> //stdout.printf("word = %s\n", words[i]);
> wc++;
> }
> }
>
> stdout.printf("lc = %d. wc = %d\n", lc, wc);
> return 0;
> }
> }
1) The GType system is initialized
2) read_line() is not as cheap as a getline()
3) str.split() is not as cheap as strtok()
You're just comparing them the wrong way.
--
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