[Fedora-i18n-bugs] [Bug 1011674] New: [PATCH] yum-langpackages slows down yum runs a lot, due to langtable and loading groups.

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1011674

Bug ID: 1011674
           Summary: [PATCH] yum-langpackages slows down yum runs a lot,
                    due to langtable and loading groups.
           Product: Red Hat Enterprise Linux 7
           Version: 7.1
         Component: yum-langpacks
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail],
                    [e-mail], [e-mail],
                    [e-mail], [e-mail]
        Depends On: 1011670

+++ This bug was initially created as a clone of Bug #1011670 +++

Description of problem:

Noticed that yum runs in F20 were a lot slower than I expected, traced it to
langpacks (not sure how recent this is, maybe needs fix in F18/F19/el7 too?).

The first patch is a huge savings:

~1 second off, from 1.8s to 0.8s to do: yum list yum

...which is all "import langtable", so I moved that to happen lazily.

The second patch is that postreposetup_hook() gets called for basically every
command, but we only need that data if a transaction happens. So I moved it:

~0.3s off, from 0.8s to 0.5s to do: yum list yum

--- Additional comment from James Antill on 2013-09-24 15:10:11 EDT ---

--- Additional comment from James Antill on 2013-09-24 15:16:55 EDT ---

Just checked and this is a problem in F19, and thus. I assume el7.