From: Ricardo Wurmus <rekado@elephly.net>
To: Arun Isaac <arunisaac@systemreboot.net>
Cc: guix-devel@gnu.org
Subject: Re: Inverted index to accelerate guix package search
Date: Wed, 15 Jan 2020 22:03:24 +0100 [thread overview]
Message-ID: <87sgkgxwir.fsf@elephly.net> (raw)
In-Reply-To: <cu74kwxe0jv.fsf@systemreboot.net>
Arun Isaac <arunisaac@systemreboot.net> 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
next prev parent reply other threads:[~2020-01-15 21:03 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-12 15:03 Inverted index to accelerate guix package search Arun Isaac
2020-01-13 8:48 ` Pierre Neidhardt
2020-01-13 15:08 ` Arun Isaac
2020-01-13 17:54 ` zimoun
2020-01-14 3:53 ` Bengt Richter
2020-01-14 14:21 ` Pierre Neidhardt
2020-01-14 15:27 ` Giovanni Biscuolo
2020-01-14 20:55 ` zimoun
2020-01-14 21:41 ` Pierre Neidhardt
2020-01-14 21:59 ` zimoun
2020-01-15 9:12 ` Pierre Neidhardt
2020-01-15 14:25 ` zimoun
2020-01-15 11:53 ` Giovanni Biscuolo
2020-01-15 14:49 ` zimoun
2020-01-16 19:06 ` Arun Isaac
2020-01-16 20:08 ` zimoun
2020-01-17 17:13 ` Pierre Neidhardt
2020-01-17 19:11 ` Pierre Neidhardt
2020-01-18 20:31 ` Arun Isaac
2020-01-15 5:44 ` Arun Isaac
2020-01-15 9:06 ` Pierre Neidhardt
2020-01-15 12:00 ` zimoun
2020-01-15 13:41 ` Pierre Neidhardt
2020-01-15 11:54 ` zimoun
2020-01-15 21:03 ` Ricardo Wurmus [this message]
2020-01-15 21:19 ` zimoun
2020-01-16 14:44 ` Ludovic Courtès
2020-01-16 15:04 ` zimoun
2020-01-16 19:11 ` Arun Isaac
2020-01-16 19:53 ` zimoun
2020-01-17 19:29 ` Arun Isaac
2020-01-20 19:14 ` zimoun
2020-01-20 20:42 ` Arun Isaac
2020-01-21 10:46 ` Ludovic Courtès
2020-01-23 20:49 ` Arun Isaac
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