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Showing content from https://lists.gnu.org/archive/html/bug-gnu-emacs/2023-07/msg01363.html below:

bug#64735: 29.0.92; find invocations are ~15x slower because of ignores

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] From: Ihor Radchenko 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@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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