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From: Charalampos Mitrodimas <charmitro@posteo.net>
To: "Jakub Ječmínek" <kuba@kubajecminek.cz>
Cc: Nicolas Richard <theonewiththeevillook@yahoo.fr>,
	Eli Zaretskii <eliz@gnu.org>,
	17219@debbugs.gnu.org
Subject: bug#17219: 24.3.50; wrong alignment when a list is given to dired
Date: Mon, 23 Dec 2024 18:20:23 +0000	[thread overview]
Message-ID: <cd0363e3-2e13-4cdc-953f-8d7f10ca26ae@posteo.net> (raw)
In-Reply-To: <87ikramglo.fsf@kubajecminek.cz>

Thanks Jakub!

On 12/23/24 19:52, Jakub Ječmínek via Bug reports for GNU Emacs, the 
Swiss army knife of text editors wrote:
> Hello,
>
> "Charalampos Mitrodimas" <charmitro@posteo.net> writes:
>
>> What about performance? Depending on the size of the directory,
>> recalculating alignment could have a minor performance impact.
> There is. The largest directory I have on my machine has around 18k
> files (~5GB) and the penalty is around 20ms. I've run the tests for both
> functions in standalone Emacs session started using 'emacs -Q'. Below
> are the profiling results:
>
> Function Name     Call Count  Elapsed Time  Average Time
> --------------------------------------------------------
> dired-revert-new  10          5.2096629750  0.5209662975
> dired-revert-old  10          5.051716523   0.5051716522
>
> dired-revert-new  25          11.843308944  0.4737323577
> dired-revert-old  25          11.391448779  0.4556579511
>
>
> Please let me know if that's too high so we can find another way.
If my math doesn't deceive me, the performance penalty ranges
between 3.13% (10 calls) and 3.97% (25 calls) based on the profiling
results, which I find acceptable.


--
C. Mitrodimas






      reply	other threads:[~2024-12-23 18:20 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-07 17:35 bug#17219: 24.3.50; wrong alignment when a list is given to dired Nicolas Richard
2019-08-15  0:03 ` Lars Ingebrigtsen
2019-09-19 16:18   ` Nicolas Richard via Bug reports for GNU Emacs, the Swiss army knife of text editors
2019-09-20  6:28     ` Eli Zaretskii
2019-09-20 12:48     ` Lars Ingebrigtsen
2024-12-22 21:08 ` Jakub Ječmínek via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-23  0:25   ` Charalampos Mitrodimas
2024-12-23 17:52     ` Jakub Ječmínek via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-12-23 18:20       ` Charalampos Mitrodimas [this message]

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