Messages in this thread | | | Date | Sat, 14 Oct 2006 17:44:00 -0400 | From | John Richard Moser <> | Subject | Re: Driver model.. expel legacy drivers? |
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Kevin K wrote: > > On Oct 14, 2006, at 10:04 AM, John Richard Moser wrote: >> My math predicts that 2.6.57 (+39) will be 100M (in approximately 7 >> years if you assume 1 kernel release every 2 months); 2.6.92 (+35) will >> breech 200M; 2.6.117 (+25) will breech 300M; and 2.6.138 (+21)) will >> breech 400M. That should suffice for predictions over the next 20 years >> based on this crude model. >> > > Who knows. By that time, CPU caches may be that size. And hopefully > tools are developed to an extent that they can automate cleanup. >
Yeah, a static code coverage analyzer or some sort of code-reducer would be nice; these are in general pipe dreams but eh. Also these are compressed bzip2 tarball sizes, not compiled kernel sizes or source tree sizes. I would imagine a 100MB bzip2 would turn into something quite large; the major issue is the amount of work it takes to maintain something like that.
I am slowly forming the prediction that monolithic kernels won't survive (Net/Open/FreeBSD, Linux) and only microkernels or so-called "nanokernels" (or the exokernel ...) will be maintainable EVENTUALLY; however I don't have sufficient data, as one would have to illustrate a maintenance advantage in those models to complete that prediction and I lack understanding to do such. Besides, there's no good data on the upper bound of what is maintainable; it's somewhere below the size of the universe, that's about all I can give you.
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