george white wrote:
I have a couple of suggestions for making the IPS packaging system much faster.
First, introduce a type called dirfile, which is a cpio archive of multiple
files in a single directory. These would be files that are always replaced as
a group and never otherwise preserved individually. This would also make
downloads more efficient by allowing compression to act across a collection of
files that contain common strings and to reduce the overhead from a large
number of tiny transactions. The problem I see is that there are far too many
tiny files, where the overhead of testing each one is so high, it hardly makes
it worth finding it in the download cache. The other suggestion is to use only
2 digits in the directory name, instead of 6, for the second level of the
download cache. You could get away with 2 if large numbers of small files were
aggregated into dirfile's, otherwise, you might need 3. Six is way too many as
there is hardly ever more than 1 file in each leaf di
re
ctory, when optimally, there should be a 100 or so.
pkg inquiries should be sent to pkg-discuss.
But as to the functionality in question, that's intentional. Otherwise
the client couldn't retrieve only the files that have changed when
performing upgrades.
As to finding files in the download cache, with recent layout changes,
that's extremely cheap.
Cheers,
--
Shawn Walker
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