Messages in this thread |  | | From | "Peter T. Breuer" <> | Subject | Re: source dependencies cleanup? | Date | Thu, 5 Dec 1996 13:04:40 +0000 (WET) |
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I'll just add one data point to the discussion for the present, and leave the rest for later.
"A month of sundays ago Paul Flinders wrote:" > I'll try to deal with all of the above points together - especially the last. > > I'm afraid that I have to disagree that the time taken for "make depend" > is short enough to be discounted - it certainly isn't on the machines > that I have at work.
> i) I disagree with the 0 for "make depend" - on my machines it appears > to be 5-10% of the time needed for a full build. Therefore the time > should be 0.65Y - 0.7Y
I just did a "make dep" (using mkdep) on this 133MHz Pentium with 16M Ram (running X, blah, blah .. well, a lot). It took just over a minute. Actually 26s of user + system time at 33% usage.
% time make dep [snip] 16.290u 7.480s 1:12.44 32.8% 0+0k 0+0io 25540pf+0w
I am not going to do a kernel compile right now, but from experience I know that a new make zImage over an already compiled kernel after a change of configuration takes 25mins+ a bit on this machine in the same operating mode as I am in now. A full compile after make clean takes 40mins, I think I recall.
That is a bit below your 5-10%, but not way below. I am estimating 2-4%.
--------------------------------------------------------------------- Peter T. Breuer Phd. Ing., Area de Ingenieria Telematica E-mail: ptb@it.uc3m.es Dpto. Ingenieria Tel: +34 1 624 99 47 Universidad Carlos III de Madrid Fax: +34 1 624 94 30/65 Butarque 15, E-28911 Leganes URL: http://www.it.uc3m.es/~ptb Spain
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