[Yum-devel] Extremely slow dependency resolution in FC4/rawhide

seth vidal skvidal at phy.duke.edu
Mon Jun 6 20:19:45 UTC 2005


On Mon, 2005-06-06 at 23:11 +0300, Panu Matilainen wrote:
> I commented in some other mail about peculiarly slow dependency
> resolution when removing packages with yum. I just had a comparison
> between my main x86_64 box which is running ~FC4, and a i386 box running
> somewhat the same, except some weeks behind updates (last updated May
> 19th to be exact). The otherwise a lot faster x86_64 box spends roughly
> a minute resolving "yum remove python", whereas the i386 box did that in
> about five seconds. Now, that's a HUGE difference on systems relatively
> similar in installation, except that the dramatically slower box should
> be helluva lot faster.
> 
> Well, I updated both boxes to todays rawhide and now both are just
> *crawling* during the dep resolution (Processing Dependency ...) stage.
> The x86_64 box still takes roughly one minute, the i386 box about two
> minutes, both running from hot cache with -C. 
> 
> Are others seeing this, and any ideas what the hell can cause such a
> dramatic slowdown? 

dep reports from ts.check() do not include the arch.

so yum has to check each one for multiarch and see which one is the
'most right'

that's what takes so much longer.

though a minute sounds way off the charts.

-sv





More information about the Yum-devel mailing list