bug#44175: [optimization] Grafting is too slow

[Lars-Dominik Braun]

Hi,

> Yes, you’re right of course.  But I think in the example above Lars was
> reporting the run time of the ‘guix’ command when the graft itself is
> already built.  Just the extra code to compute the graft derivation (not
> actually building them) leads to x2 wall-clock time or so.
yes, Ludo is right. The numbers I reported are with grafts already built, warm 
caches and
local socket communication. So we’re only seeing the CPU-bound computation
here. Sorry for the confusion. I should have been more specific in the other
issue.

Cheers,
Lars

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