From: dana <dana@dana.is>
To: martin@mvath.de
Cc: zsh-workers@zsh.org
Subject: Re: Huge delay for completions when not sorting
Date: Sun, 1 Jul 2018 15:38:54 -0500 [thread overview]
Message-ID: <651A4CB3-1D36-4668-9DC0-EFACDE13E26D@dana.is> (raw)
In-Reply-To: <slrnpji5if.45o.martin@clover.invalid>
On 1 Jul 2018, at 12:56, Martin Vaeth <martin@mvath.de> wrote:
>I would have expected that the line
>
>zstyle ':completion:*' sort false
>
>speeds things up if there is a huge number of completions.
>However, quite the opposite is true.
It's to do with the way it checks for duplicates in the unsorted results (-V
without -1 or -2). For each completion possibility, it performs a series of
checks against every subsequent possibility (compcore.c @ 3239)
I'm pretty bad at maths, but i think that for 40'000 unique possibilities it'll
have to make, like, 800 million calls to strcmp()
dana
next prev parent reply other threads:[~2018-07-01 20:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-01 17:56 Martin Vaeth
2018-07-01 20:38 ` Bart Schaefer
2018-07-01 20:38 ` dana [this message]
2018-07-01 21:12 ` Bart Schaefer
2018-07-02 5:52 ` Martin Vaeth
2018-07-02 6:03 ` Bart Schaefer
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