Re: Performance Tracker project update

[Erik Cederstrand <erik_(_at_)_cederstrand_(_dot_)_dk>]

Brooks Davis skrev:
> On Fri, Feb 08, 2008 at 09:41:09AM +0100, Erik Cederstrand wrote:
> > I finally got around to testing this, and with a combination of mtree 
> > comparing md5 hashes, bsdiff compacting changed files and hardlinking 
> > unchanged files I get a reduction in size from 256MB to 10MB. Pretty good, 
> > and the whole operation only takes a few minutes.
>
> Cool!
>
> > I have one peculiarity, though. I install python2.5 into the directory 
> > containing the build, and even though the python version has not changed, I 
> > still get mismatching md5 sums on every .pyo and .pyc file. Any thoughts on 
> > this?
>
> I'm not a python guru by any means, but I think .pyc files probably have data
> about the .py they are generated from because there's some sort of
> auto-generation available.  It may be possible to not store them at all and
> just generate them before you use them or add some magic build flags to cause
> them to store some sort of cooked values.  I'm not sure where the .pyo files
> come from.

As suggested in other posts, deleting .pyo and .pyc files gets me down 
to 6MB. Static libraries (.a files) in /usr/lib and /usr/local/lib still 
have mismatching MD5 sums even though no source code change warrants 
this. Can I do anything about that? Are static libraries even needed 
anymore?

Erik
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