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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Thierry Volpiatto <thierry.volpiatto@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: remove-duplicates performances
Date: Fri, 20 May 2011 13:14:03 -0300	[thread overview]
Message-ID: <jwvboyxuzft.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87tycpcu6t.fsf@gmail.com> (Thierry Volpiatto's message of "Fri,  20 May 2011 16:39:38 +0200")

> I go down to a list of 10 elements and it still faster:

I'm not surprised the break-even is less than 10.

> liste de 2X10 éléments:
> remove-duplicates  1           0.000209      0.000209
> remove-dups        1           3.6e-05       3.6e-05

> liste de 2X5 éléments:
> remove-duplicates  1           7.3e-05       7.3e-05
> remove-dups        1           6.4e-05       6.4e-05

Hmm... so it's faster to do it for 20 than for 10?

I expect it is common to call remove-duplicates with very short lists
(shorter than 10 for sure) that present (almost) no duplication.


        Stefan



  reply	other threads:[~2011-05-20 16:14 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-20 13:51 remove-duplicates performances Thierry Volpiatto
2011-05-20 14:09 ` Stefan Monnier
2011-05-20 14:39   ` Thierry Volpiatto
2011-05-20 16:14     ` Stefan Monnier [this message]
2011-05-20 17:46       ` Thierry Volpiatto
2011-05-20 15:16   ` Ted Zlatanov
2011-05-20 14:28 ` David Kastrup
2011-05-20 16:00   ` Thierry Volpiatto
2011-05-20 17:01     ` David Kastrup
2011-05-20 17:31       ` Thierry Volpiatto
2011-05-20 17:46         ` David Kastrup
2011-05-20 18:01           ` Stefan Monnier
2011-05-20 21:57             ` Pascal J. Bourguignon
2011-05-20 17:57       ` Ted Zlatanov

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