From: Oleh Krehel <ohwoeowho@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: What to do for faster `remove-duplicates'?
Date: Wed, 06 May 2015 15:51:55 +0200 [thread overview]
Message-ID: <87y4l1ke4k.fsf@gmail.com> (raw)
In-Reply-To: <jwvmw1hakaq.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Wed, 06 May 2015 09:50:42 -0400")
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> I attach the patch. I did a bunch of `benchmark-run' and it seems that
>> 100 elements is the breaking point.
>
> Looks good, please install. It's hard to believe that you need a whole 100
> elements before it pays off ;-)
For a different completely unique collection, it breaks at 30. This is
because list-style deletion works faster when there are a lot of
duplicates.
Oleh
next prev parent reply other threads:[~2015-05-06 13:51 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-06 7:33 What to do for faster `remove-duplicates'? Oleh Krehel
2015-05-06 12:59 ` Stefan Monnier
2015-05-06 13:30 ` Oleh Krehel
2015-05-06 13:50 ` Stefan Monnier
2015-05-06 13:51 ` Oleh Krehel [this message]
2015-05-06 17:43 ` Thierry Volpiatto
2015-05-06 17:54 ` Oleh Krehel
2015-05-06 18:31 ` Artur Malabarba
2015-05-06 18:33 ` Artur Malabarba
2015-05-06 18:41 ` Oleh Krehel
2015-05-06 19:24 ` Artur Malabarba
2015-05-06 19:32 ` Oleh Krehel
2015-05-06 21:22 ` Artur Malabarba
2015-05-06 18:48 ` Thierry Volpiatto
2015-05-06 20:54 ` Stefan Monnier
2015-05-06 20:54 ` Stefan Monnier
2015-05-06 21:18 ` Artur Malabarba
2015-05-06 14:04 ` Artur Malabarba
2015-05-06 14:13 ` Oleh Krehel
2015-05-06 14:49 ` Artur Malabarba
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87y4l1ke4k.fsf@gmail.com \
--to=ohwoeowho@gmail.com \
--cc=emacs-devel@gnu.org \
--cc=monnier@iro.umontreal.ca \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).