[Beowulf] Re: "hobbyists"
Perry E. Metzger
perry at piermont.com
Fri Jun 20 21:49:05 EDT 2008
Lawrence Stewart <larry.stewart at sicortex.com> writes:
> There are many positive things to say about the Linux kernel, but
> "good code" is not one of them.
I tend to agree. The quality levels tend to be very mixed.
> Well that is too broad an indictment - There is good code in there,
> but the level varies widely.
> Have you <<looked>> at the TTY drivers? Have you counted the number of
> "<< 9" s in the block code?
> Tried to figure out which includes are actually active? Tried to
> figure out which of the 17 ways to do
> something is the "approved" one?
There are worse examples, sadly. :(
> I have one of the copies of the "Lions" book - the annoted sources
> for V6. That is good code. Written by one or a very few exceptional
> programmers, not an agglomeration of a zillion patches.
Unfortunately, also in a pretty old C dialect, and written for an age
where catching edge conditions wasn't worth it because you had to run
in 64k and had no attackers to deal with. :(
That said, the Lions book is in a prominent place on my shelf.
There's a great book out there called "Code Reading"
by Diomidis Spinellis that I'd recommend ahead of just jumping in to
the Linux kernel.
Perry E. Metzger perry at piermont.com
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