Re: [gentoo-dev] Re: emerge suggestions

[Ned Ludd <solar@gentoo.org>]

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On Wed, 2004-09-08 at 19:46, Heiko Wundram wrote:
> Am Mittwoch, 8. September 2004 18:43 schrieb Chris White:
> > How are you going to effectively measure the times?
> 
> IIRC, there once was a proposal to do this using bash-units. Each product in 
> the tree gets assigned a bash unit, which is a floating point number >0 which 
> measures how long compilation takes relative to compiling some certain 
> version of bash.
> 
> Now, all that needs to be done is to measure package compilation and merging 
> time, divide by the number of bash units this package has, and you get an 
> estimate on the time for a bash unit on this computer. The more packages you 
> merge, the finer this number will become by simply averaging it out. Of 
> course, this does not take into account changing the LDFLAGS (which should 
> make up for the biggest part of different merge times), or CFLAGS (which 
> might also change timing by varying optimization levels and swap 
> requirement). But, anyway, these numbers don't change anything about the 
> underlying unit, which should be to a large extent platform and machine 
> independent.

To complex and still wont account for various USE= & FEATURES= flags,
gcc versions and loads on said server that's building XYZ. It's
therefore sorta a waste of all of our time and bandwidth to continue
this thread when we already know we are going to all come to the same
conclusion in the end that said functionality will never be accurate.

> 
> I don't know when this proposal came up, I read about it on some forum, some 
> time ago.
> 
> Heiko.
> 
> --
> gentoo-dev@gentoo.org mailing list
-- 
Ned Ludd <solar@gentoo.org>
Gentoo (hardened,security,infrastructure,embedded,toolchain) Developer

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