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Dillo - now a graphical web browser for DOS - beta2 (Announce)

posted by obeythepenguin Homepage, United States, 29.11.2011, 16:59

Hi favero,

> It would be nice if unnecessary CPU usage on DOS could be fixed.
I am (slowly) working on that. The problem is, high CPU usage can be difficult to debug, especially when you're not intimately familiar with the platform. I've used DOS for years, but Dillo is my first real attempt at DOS programming, so I'm learning a lot of it as I go along.

As I mentioned in my last post, I suspect a bug in FLTK because that particular function has caused trouble before. Unfortunately I've been busy with schoolwork lately, and haven't had much chance to test that hypothesis. And that is just an educated guess -- to be honest, the main reason I even noticed the problem was because I heard my laptop's fan switching on!

I did talk with Georg, and he claims the CPU usage isn't a problem because (paraphrasing) DOS is a single-user system and wasn't designed for efficient hardware usage, or something to that effect. I see two problems with this. One, it's a dubious argument at best, and two, high CPU usage isn't only a problem in and of itself; it's usually symptomatic of a much deeper problem, especially in a program like Dillo that doesn't do particularly heavy processing.

But yes, long story short, it bothers me too, and I am looking into it. :-)

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