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

Previous Next

Full log

Message #235 received at 39258 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Arun Isaac <arunisaac <at> systemreboot.net>
Cc: mail <at> ambrevar.xyz, 39258 <at> debbugs.gnu.org, zimon.toutoune <at> gmail.com
Subject: Re: [bug#39258] [PATCH v3 0/3] Package metadata cache for guix search
Date: Fri, 24 Apr 2020 23:05:26 +0200

Hi,

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

> Speedup is around 2x. Both measurements below are with a warm cache.
>
> $ time guix search inkscape
>
> real	0m1.722s
> user	0m1.776s
> sys	0m0.097s
>
> $ time /tmp/test/bin/guix search inkscape
>
> real	0m0.749s
> user	0m0.770s
> sys	0m0.020s
>
> This patchset does not affect the search API nor does it improve the relevance
> of search results. If there is interest in this approach, I'll complete this
> patchset properly. But, in the long run, I do think we should aim to get
> xapian or the like for guix search. WDYT?
>
> Unfortunately, generate-package-metadata-cache takes 43 seconds to build the
> cache on my relatively slow computer. Performance should be better on other
> people's machines.

43 seconds is a lot.  How do these 43 seconds compare to current ‘guix
search’ on your computer?  (Both do roughly the same thing.)

Thanks,
Ludo’.

Previous Next

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