Re: F34 Change proposal: Debug Info Standardization (from DWZ to -fdebug-types-section) (System-Wide Change proposal)

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On Fri, 25 Sep 2020 16:29:26 +0200, Jan Kratochvil wrote:
> On Fri, 25 Sep 2020 12:10:22 +0200, Zbigniew Jędrzejewski-Szmek wrote:
> > I would love to see a comparison of numbers for three things:
> > - raw debuginfo without dwz or -fdebug-types-section
> 
> Oops, I do not have this number, I can run new massrebuild, it takes about
> 4 days (depending on availability of beefy machines).

After almost 5 days it finished:
 rpm size:  45643460133
disk size: 233466873738

= neither compression rpm size is bigger by 31.23%.
= neither compression on-disk size is bigger by 29.72%.

It is based on 22126 Fedora Rawhide packages (20810 rebuilt) on 2020-09-30.

That has been arithmetically approximated from:
New mass rebuild's no DWZ && no -fdebug-types-section:
 rpm size:  59324710852
disk size: 299606472067
New mass rebuild's default DWZ:
 rpm size:  45732816106
disk size: 228314986029


> > - debuginfo with dwz (current approach)
> 
>  rpm size:  35186079102
> disk size: 177913332940
> 
> > - debuginfo with -fdebug-types-section
> 
>  rpm size:  37570327765
> disk size: 214927514757
> 
>  = DWZ rpm size is smaller by 6.78%
>  = DWZ on-disk size is smaller by 20.8%
> 
> It is based on 22080 Fedora Rawhide packages rebuilt on 2020-08-24.
  It is based on 22080 Fedora Rawhide packages (20637 rebuilt) on 2020-08-24.



Jan
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