GNU bug report logs - #64735
29.0.92; find invocations are ~15x slower because of ignores

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From: Ihor Radchenko <yantar92 <at> posteo.net>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: dmitry <at> gutov.dev, Eli Zaretskii <eliz <at> gnu.org>, 64735 <at> debbugs.gnu.org, sbaugh <at> janestreet.com
Subject: bug#64735: 29.0.92; find invocations are ~15x slower because of ignores
Date: Fri, 21 Jul 2023 13:23:26 +0000

Michael Albinus <michael.albinus <at> gmx.de> writes:

> --8<---------------cut here---------------start------------->8---
> (benchmark-run-compiled 1 (directory-files-recursively "~/src" ""))
> (38.133906724000006 13 0.5019186470000001)
> (benchmark-run-compiled 1 (let (file-name-handler-alist) (directory-files-recursively "~/src" "")))
> (32.944982886 13 0.5274874450000002)
> --8<---------------cut here---------------end--------------->8---

Interesting. Apparently my SSD is skewing the benchmark data on IO:

(length (directory-files-recursively "~/Git" ""))
;; => 113628

(benchmark-run-compiled 1 (directory-files-recursively "~/Git" ""))
;; => (1.756453226 2 0.7181273930000032)
(benchmark-run-compiled 1 (let (file-name-handler-alist) (directory-files-recursively "~/Git" "")))
;; => (1.202790778 2 0.7401775709999896)

Would be interesting to see profiler and perf data for more detailed
breakdown where those 30+ seconds where spent in.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

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