Re: Inverted index to accelerate guix package search

[Ricardo Wurmus]

Arun Isaac <address@hidden> writes:

> Indeed, I found the bug and fixed it. Please find attached the updated
> code. Also, the inverted index hash table stores package objects instead
> of package names and all comparisons are now done with eq?. This gets us
> an even higher speedup of around 300x.
>
> Built index in 8.556596040725708 seconds
> Brute force search took 0.4107058048248291 seconds
> Inverted index search took 0.0012979507446289062 seconds

Neat!

We could build and install the index when Guix is built and installed
and then use it for the search.  I can’t think of a downside to adopting
an index compared to what we have now.

-- 
Ricardo