Re: Better way to handle apt cache needed

["Roberto A. Foglietta" <roberto.foglietta@gmail.com>]

On Fri, 30 Dec 2022 at 00:15, Roberto A. Foglietta
<roberto.foglietta@gmail.com> wrote:

> Hi all,
>
> I did some changes to reduce disk usage and to speed up the building.
> The results are quite impressing so, before everything else I am going
> to show you the numbers:
>
> results before and after the changes
>
> 43954 Mb (max)   |  8657 Mb (max)
> 26548 Mb (rest)  |  4118 Mb (rest)
>  3741 Mb (deb)   |  3741 Mb (deb)
>   820 Mb (wic)   |   820 Mb (wic)
> 11789 Mb (cache) |   579 Mb (cache)
> time: 8m33s      | time: 4m34s
>
> The changes has been committed on the default branch (evo) on my ISAR fork
>
>  https://github.com/robang74/isar
>
> * 9fd5282 - changes for a faster build using less disk space, p.1
> * 1b6ac1e - bugfix: no sstate archive obtainable, will run full task instead
> * 2cc1854 - bugfix: do_copy_boot_files was able to fail but then set -e

The patchset is changed in this way:

* 9773c8d - changes for a faster build using less disk space, p.4
(HEAD, origin/evo, origin/HEAD, evo)
* 3501d20 - changes for a faster build using less disk space, p.3
* ab0eb44 - changes for a faster build using less disk space, p.2
* 09e2bf4 - changes for a faster build using less disk space, p.1
* b9257a1 - bugfix: no sstate archive obtainable, will run full task instead
* 2cc1854 - bugfix: do_copy_boot_files was able to fail but then set -e

The second bugfix (b9257a1) has been reworked because it sometimes was
creating trouble. The first bugfix and p.1 did not change. While p.2
fixes the Felix issue on iot2050 and adopts --reflink=auto when using
'cp'. The p.3 is a straightforward version of the improvement sent
here in list by Uladzimir. While the p.4 needs to be discussed because
it is a little radical as an approach and did not bring such a change.

        patch 1         patches 1,2,3
    ------------ basic-os --------------
     8657 Mb (max)   |  4876 Mb (max)
     4118 Mb (rest)  |  4028 Mb (rest)
     3741 Mb (deb)   |  3741 Mb (deb)
      820 Mb (wic)   |   820 Mb (wic)
      579 Mb (cache) |   550 Mb (cache)
    time: 4m34s      | time: 4m24s

          patches 1-3        patches 1-4
        ------------ basic-os --------------
         4876 Mb (max)   |  4801 Mb (max)
         4028 Mb (rest)  |  3952 Mb (rest)
         3741 Mb (deb)   |  3741 Mb (deb)
          820 Mb (wic)   |   820 Mb (wic)
          550 Mb (cache) |   550 Mb (cache)
        time: 4m24s      | time: 4m16s

Best regards, R-