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Re: are diffs available for .orig.tar.gz files



On 2/20/07, Kevin Mark <kevin.mark@verizon.net> wrote:
On Tue, Feb 20, 2007 at 07:54:34AM +0200, Tshepang Lekhonkhobe wrote:
> IIUC, you mean you want to know the benefits of doing diff files, as
> compared to doing binary ones? If you got massive bandwidth, binary's
> cool, but if you want all 3 DVD's (loads of us don't have internet
> connection), you quickly notice the use of compiling from source via
> diffs.
What I meant was:
get upstream tarball (A minutes,B MB)
make to compile (C minutes, D MB)
make install (E minutes, E MB)
then
get diff (F minutes, G MB)
make to compile (H minutes, I compile)
make install (J minutes, K MB)
Time T0=A+C+E
Time T1=F+H+J
then compare
apt-get (L minutes download, M minutes install, N Minutes install)
Time T2=L+M

initiall install:
is T0 < T2

nope. Initial compilation for source will be punishing, depending on size.

first upgrade:
is T1 < T2

I suppose so, since make will only compile changed files, though I
don't know the Debian tools dealing with these since the Debian way
ought to make my life easier.

is T0+T1 < T2 * 2

If you have dial-up, probably yes, considering that one doesn't
recompile the entire thing from scratch, and also CPU power of course.



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