Re: Fedora 34 Change: DNF/RPM Copy on Write enablement for all variants (System-Wide Change)

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On Tue, Dec 22, 2020 at 05:09:08PM -0500, Matthew Miller wrote:
> On Tue, Dec 22, 2020 at 02:02:13PM -0800, Kevin Fenzi wrote:
> > > delta rpms safe so much time in form of bandwidth on the client side.
> > Well, it's tradeoffs. They save bandwith and download time on one side,
> > but use lots of cpu cycles and disk space on the other. It just depends
> > on what each person wants based on their situation and hardware. 
> 
> They actually use a lot of cpu cycles on _both_ sides, really.

I thought that zchunk would obsolete drpm. What's the story here?

Also, in recent times, any dnf upgrade I did reported "savings" from
drpm on the level <1% [*]. Am I doing something wrong or is this expected?
Is there some usage pattern where there drpm provides real gain with
current Fedora?

Maybe the time has come to just disable DRPM entirely for F34.

Zbyszek

[*] Today on F33:
> Delta RPMs reduced 836.8 MB of updates to 836.7 MB (0.1% saved)
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