How can Minix 3 be so small

Clermont, Nicolas nicolas.clermont at
Tue Jun 26 17:19:26 CEST 2007

I have noticed that Minix3 only support one architecture (x86), and doesn't
offers something like a HAL.
Maybe this is one reason. 

-----Message d'origine-----
De : l4-hackers-bounces at
[mailto:l4-hackers-bounces at] De la part de Hendrik Tews
Envoyé : mardi 26 juin 2007 17:13
À : l4-hackers at
Objet : How can Minix 3 be so small


I just noticed that the Minix 3 kernel is under 4000 lines. I couldn't
easily find numbers for Pistachio, but I guess it is comparable to Fiasco,
which is about 15.000 lines (without the kernel debugger).

Could anybody explain why Fiasco is so big in comparison with Minix 3? From
the difference in size I would expect that there is an essential difference
in the feature set between Minix 3 and Fiasco. Or are the Minix lines just
four times longer on average? 



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