Am 27.05.2013 09:32, schrieb Jan Zelený:
On 25. 5. 2013 at 09:34:32, Nico Kadel-Garcia wrote:
> On Wed, May 22, 2013 at 11:55 AM, Michael Ekstrand <michael(a)elehack.net>
wrote:
>> Performance improvement: improve scaling to 5K+ installed packages.
>
> * Amen. This is particularly compounded by poor caching default
> behavior, so that a few yum commands in a row each wind up reaching
> out to downloading metadata again, and again, and again.
>
> I think this can be addressed by moving the metadata updates to a
> different function, and calling it *separately* only as needed. The
> Debian "apt" tool does this quite effectively.
Unfortunately there is not much we can do about this. Debian has completely
different repository policy - they keep all versions of packages in the repo so
there is no need to update metadata on client machines every time
what does keep old versions or not change besides you need
to do "apt-get update" if you want to find "apt-get upgrade"
to find new packages?
the real problem is that the metadata are *way too fat* in Fedora
after a "yum clean metadata && yum update" on a slow line you
have to wait a very long time and even the download of the
presto-metadata often is larger and takes longer as the
packages which are updated in reality
hey on my 100 Mbit all is nice and fine but on a machine behind
DSL with around 100 KB/Second it is way too slow and large and
i refuse to imagine how this feels on a 56kbit modem