Re: sizes of yum metadata files

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On Fri, 2008-10-17 at 14:24 -0600, Michal Jaegermann wrote:
> On Fri, Oct 17, 2008 at 03:21:07PM -0400, seth vidal wrote:
> > On Fri, 2008-10-17 at 13:14 -0600, Michal Jaegermann wrote:
> > > These files used to show up compressed with gzip.  It does not
> > > seem to be the case for some time.  With sizes like
> > > 
> > > 37M 0dc08d372184e56c71a32b6abbd6fbdd8eedfd3d-primary.sqlite
> > > 65M b860206f9cc245151e10625c725c8c2eb0145c31-filelists.sqlite
> > > 
> > > this makes a substantial difference on slower connections and not
> > > everybody has T1.  A disk space starts to add up too.  Was this
> > > change deliberate?  Even a default gzip compression shaves between
> > > 70 and 80 percent of these.
> > 
> > What repo are you seeing these in?
> 
> Hm.  I did not pay attention and now this information is gone.
> Will look closer next time.  Of course no guarantees that I will
> get the same mirror.
> 
> > those files are bzipped in the repo and decompressed and left
> > decompressed in your local cache dir.
> 
> Do they have to be decompressed?  With one rawhide repo this is not
> that much.  Once you have few of these, plus "testing", plus some
> "debuginfo" for at least some of repos, it will be much harder not
> to notice that on your disk.

It's a fairly considerable performance hit to decompress these each time
and you do not want them just decompressed into memory. That's a big
memory hit.

-sv


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