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From: Emanuel Berg <moasen@zoho.com>
To: help-gnu-emacs@gnu.org
Subject: Re: point-at-final-line
Date: Tue, 30 Jan 2018 15:52:09 +0100	[thread overview]
Message-ID: <86r2q79z6u.fsf@zoho.com> (raw)
In-Reply-To: mailman.8212.1517284260.27995.help-gnu-emacs@gnu.org

Stefan Monnier wrote:

>> (insert (format "\n;; %f" (measure-time
>> #'point-at-final-line)))
>
> This doesn't actually call the function, so
> no wonder it will take the same amount of
> time no matter which function you pass to it.

And if you do it the right way, you don't need
a buffer of 100 000 lines or 10 000 iterations:

;; (insert (format "\n;; %f" (measure-time (point-at-final-line-1))))
;; 0.000154
;; (insert (format "\n;; %f" (measure-time (point-at-final-line-2))))
;; 0.000045
;; (insert (format "\n;; %f" (measure-time (point-at-final-line-3))))
;; 0.000014

-- 
underground experts united
http://user.it.uu.se/~embe8573


      parent reply	other threads:[~2018-01-30 14:52 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-27  1:14 point-at-final-line Emanuel Berg
2018-01-27  1:36 ` point-at-final-line Ben Bacarisse
2018-01-27  1:52   ` point-at-final-line John Mastro
2018-01-27  2:50   ` point-at-final-line Emanuel Berg
     [not found]   ` <mailman.8058.1517017989.27995.help-gnu-emacs@gnu.org>
2018-01-27  2:56     ` point-at-final-line Emanuel Berg
2018-01-27  3:02     ` point-at-final-line Emanuel Berg
2018-01-27  6:11       ` point-at-final-line Marcin Borkowski
     [not found]       ` <mailman.8063.1517033499.27995.help-gnu-emacs@gnu.org>
2018-01-27  7:05         ` point-at-final-line Emanuel Berg
2018-01-28 16:06       ` point-at-final-line Stefan Monnier
     [not found]       ` <mailman.8116.1517155644.27995.help-gnu-emacs@gnu.org>
2018-01-28 18:59         ` point-at-final-line Emanuel Berg
2018-01-28 20:36           ` point-at-final-line Eli Zaretskii
     [not found]           ` <mailman.8132.1517171769.27995.help-gnu-emacs@gnu.org>
2018-01-29 15:03             ` point-at-final-line Emanuel Berg
2018-01-29 16:04               ` point-at-final-line Eli Zaretskii
     [not found]               ` <mailman.8177.1517241890.27995.help-gnu-emacs@gnu.org>
2018-01-29 16:40                 ` point-at-final-line Emanuel Berg
2018-01-29 17:51                   ` point-at-final-line Eli Zaretskii
     [not found]                   ` <mailman.8185.1517248285.27995.help-gnu-emacs@gnu.org>
2018-01-30  2:18                     ` point-at-final-line Emanuel Berg
2018-01-30  3:32                       ` point-at-final-line Eli Zaretskii
2018-01-30  3:50       ` point-at-final-line Stefan Monnier
     [not found]       ` <mailman.8212.1517284260.27995.help-gnu-emacs@gnu.org>
2018-01-30 14:52         ` Emanuel Berg [this message]

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