Re: icefox tests issues
Juergen Pfennig <[email protected]> Wed, 20 Oct 2004 19:26:51 +0200
| Newsgroups | gmane.comp.kde.devel.optimize |
|---|---|
| Message-ID | <[email protected]> |
On Wednesday 20 October 2004 17:42, rgfernandes wrote: > Hi, > I saw the page of icefox tests and play a little with code > from kde 3.3.1. > My first test was to change all occurrencies in kdelibs and > kdebase packages of it++ in loops and change to ++it. For my > surprise, I make a huge optimization in kde. My konqueror > took about 10 seconds to open my /usr/lib directory. After > the changes, it takes about 2 seconds. Several other > applications open and works very faster. That's hard to believe. An optimizer should see in most it++ cases that the value of it was not used and therefore optimize the expression. The ++it is often discussed in text books - but today it's only a question of personal taste. Benchmarking is a quite complicated thing. Are you sure that you did not benchmark the linux kernel's caching mechanisms? Yours Jürgen