bug#44053: ‘xdg-mime-database’ profile hook is slow

[Ludovic Courtès]

Hi,

Luis Felipe <luis.felipe.la@protonmail.com> skribis:

> Compared to grafting, the last step "construyendo perfil con X paquetes..." 
> ("building profile with X packages..."), just stays there without change for 
> several minutes, so it actually seems slower to me. Initially, I thought that 
> guix had frozen.
>
> Also, even though, the "building profile" step has a throbber (| / - \) to 
> indicate that something is being done, it frequently stops in one of the 
> frames of the sequence and stays there until the end.

Interesting, so we should profile that step and see what can be done.  I
suspect it’s I/O-bound, but maybe we can at least improve feedback.

Thanks,
Ludo’.