From: zimoun <zimon.toutoune@gmail.com>
To: pinoaffe <pinoaffe@airmail.cc>
Cc: 50755@debbugs.gnu.org
Subject: [bug#50755] [PATCH v3] import: Generate list of importers based on available modules
Date: Mon, 27 Sep 2021 22:09:26 +0200 [thread overview]
Message-ID: <CAJ3okZ05LLzBLTY_srqarf1LG-tq2sN7wJmg3UaU7fxFBMovHQ@mail.gmail.com> (raw)
In-Reply-To: <87mtnxswwq.fsf@airmail.cc>
Hi,
On Mon, 27 Sept 2021 at 20:21, pinoaffe <pinoaffe@airmail.cc> wrote:
> +(define importers (delete-duplicates
This fixes my first point...
> + (filter-map (lambda (module)
> + (match (module-name module)
> + (`(guix scripts import ,importer)
> + (symbol->string importer))
> + ( #t #f)))
> + (all-modules (map (lambda (entry)
> + `(,entry . "guix/scripts/import"))
> + %load-path)))))
...and it means it is walking more than needed. Therefore, what is
the performance loss?
For instance, on my machine and hot cache, it is 4x slower. And, this
readibility improvement is not worth, IMHO.
On cold cache, I do not have meaningful numbers because it requires to
run it several times and then compute an average. What are the
numbers of your machine?
All the best,
simon
next prev parent reply other threads:[~2021-09-27 20:18 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-23 12:24 [bug#50755] [PATCH] import: Generate list of importers based on available modules pinoaffe
2021-09-23 18:07 ` Sarah Morgensen
2021-09-23 21:17 ` pinoaffe
2021-09-23 21:19 ` [bug#50755] [PATCH v2] " pinoaffe
2021-09-27 14:28 ` zimoun
2021-09-27 18:27 ` pinoaffe
2021-09-27 18:20 ` [bug#50755] [PATCH v3] " pinoaffe
2021-09-27 20:09 ` zimoun [this message]
2021-09-28 9:51 ` Maxime Devos
2021-09-28 14:39 ` pinoaffe
2021-09-29 20:59 ` Maxime Devos
2021-09-30 8:17 ` pinoaffe
2021-09-30 8:37 ` Maxime Devos
2021-10-11 11:51 ` zimoun
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