GNU bug report logs - #39258
Faster guix search using an sqlite cache

Previous Next

Package: guix-patches;

Reported by: Arun Isaac <arunisaac <at> systemreboot.net>

Date: Thu, 23 Jan 2020 19:53:02 UTC

Severity: important

Done: Arun Isaac <arunisaac <at> systemreboot.net>

Bug is archived. No further changes may be made.

Full log

Message #244 received at 39258 <at> debbugs.gnu.org (full text, mbox):

From: zimoun <zimon.toutoune <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: Arun Isaac <arunisaac <at> systemreboot.net>,
 Pierre Neidhardt <mail <at> ambrevar.xyz>, 39258 <at> debbugs.gnu.org
Subject: Re: [bug#39258] [PATCH v3 1/3] guix: Generate package metadata cache.
Date: Sun, 26 Apr 2020 11:48:36 +0200

On Fri, 24 Apr 2020 at 22:48, Ludovic Courtès <ludo <at> gnu.org> wrote:

> > +  (define (expand-cache package result)
> > +    (cons `#(,(package-name package)
> > +             ,(package-version package)
> > +             ,(delete-duplicates
> > +               (map package-full-name
> > +                    (sort (filter package? (package-direct-inputs package))
> > +                          package<?)))
> > +             ,(package-outputs package)
> > +             ,(package-supported-systems package)
> > +             ,(package-synopsis package)
> > +             ,(package-description package)
> > +             ,(package-home-page package)
> > +             ,(let ((location (package-location package)))
> > +                (list (location-file location)
> > +                      (location-line location)
> > +                      (location-column location))))
>
> I was wondering if we could omit inputs, which are not that useful.

Agree.


> Note that this is probably the place where we could eventually add the
> computation of an inverted index like zimoun suggested in
> <https://lists.gnu.org/archive/html/guix-devel/2020-01/msg00243.html>.

We should first agree on the extra cost (time) we are ready to pay to
build improvements.
See the lengthy message [1] about only the caching "inverted index"
using the current 'relevance' scoring function.

[1] http://issues.guix.gnu.org/39258#78



Cheers,
simon
This bug report was last modified 37 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.