On Wed, Sep 28, 2011 at 10:28:55PM -0700, Shawn Walker wrote:
> On 09/28/11 13:48, Edward Pilatowicz wrote:
> >On Tue, Sep 27, 2011 at 04:49:06PM -0700, Shawn Walker wrote:
> >>Greetings,
> >>
> >>The following diff (and webrev) contains the fix for the following issue:
> >>
> >>   18976 pkg solver needs to go on a dependency diet
> >>
> >>
> >>https://cr.opensolaris.org/action/browse/pkg/swalker/pkg-18976/webrev/
> >>
> >>diff -r 32ef5a3b4c12 src/modules/client/pkg_solver.py
> >>--- a/src/modules/client/pkg_solver.py      Mon Sep 26 12:36:10 2011 -0700
> >>+++ b/src/modules/client/pkg_solver.py      Tue Sep 27 16:33:49 2011 -0700
> >>@@ -1129,6 +1129,9 @@
> >>                               f
> >>                               for da in self.__get_dependency_actions(fmri,
> >>                                   excludes)
> >>+                             if da.attrs["type"] != "incorporate" and
> >>+                                 da.attrs["type"] != "optional" and
> >>+                                 da.attrs["type"] != "exclude"
> >>                               for f in self.__parse_dependency(da, fmri,
> >>                                   dotrim, check_req=True)[1]
> >>                          ])
> >>
> >>This fix reduced total update operation time on my system by roughly
> >>66%.  If you exclude image planning execution time, the reduction is
> >>91%.  Details are below.
> >>
> >
> >first, this is awesome.
> >
> >my only comment on the fix is that you could also skip "parent"
> >dependencies. actually, parent dependencies shouldn't be part of
> >possible_set, so we probably should have already been skipping them here
> >already.  of course it hasn't caused a problem yet since the only parent
> >dependencies we have so far are the special "self" ones.  if you don't
> >want to skip them in this wad let me know and i'll get a separate bug
> >filed.
>
> Actually, it seems like parent dependencies could affect the
> possible set if the fmri isn't for "self" and self.__parent_pkgs is
> defined.
>

well, ultimately, yes it affects what can possibly be installed, but we
figure that out later when we trim packages with unsatisfied parent
dependencies.  if we had non-self parent dependencies, then adding them
to be possible_set would actually be kinda broken.

> I tried adding parent to the list of dependencies that aren't parsed
> and it made no difference in upgrade times (at least for my test
> cases, which admittedly weren't with any zones).
>
> Given my uncertainty surrounding that, I'd rather we file a separate
> bug to investigate parent dependencies specifically since we have
> already said that we may be able to move the parsing/trimming of
> them earlier.
>

sure.  i'll get that filed.

ed
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