Performance Tracker project update
brooks at freebsd.org
Wed Feb 13 15:46:10 UTC 2008
On Wed, Feb 13, 2008 at 03:46:10PM +0100, Erik Cederstrand wrote:
> 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.
>>> 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
>> 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
>> just generate them before you use them or add some magic build flags to
>> them to store some sort of cooked values. I'm not sure where the .pyo
>> 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?
I'd suggest checking with cperciva@ about those for freebsd-update.
Static libs are mostly not needed these days, but some are.
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