From: Ergus <spacibba@aol.com>
To: Ihor Radchenko <yantar92@posteo.net>
Cc: Eli Zaretskii <eliz@gnu.org>,
"Dr. Arne Babenhauserheide" <arne_bab@web.de>,
emacs-devel@gnu.org
Subject: Re: Indentation and gc
Date: Sat, 11 Mar 2023 12:17:30 +0100 [thread overview]
Message-ID: <20230311111730.fatow74xnbel7t3f@Ergus> (raw)
In-Reply-To: <87ttyrwobj.fsf@localhost>
On Sat, Mar 11, 2023 at 10:54:24AM +0000, Ihor Radchenko wrote:
>Eli Zaretskii <eliz@gnu.org> writes:
>
>>> ;; Make gc pauses faster by decreasing the threshold again (from the increased initial).
>>> (setq gc-cons-threshold (* 20 1024 1024))
>>> ;; original value: 800 000
>>>
>>> ;; speed up reading from external processes
>>> (setq read-process-output-max (* 1024 1024)) ;; 1mb
>>
>> This can only be done around specific portions of code known in
>> advance to be long and GC-intensive. I don't think this kind of
>> technique can be used in the situation described by the OP.
>
>May it be done when loading init.el and early-init.el?
>Init files are commonly known to be resource-intensive. They also tend
>to trigger GC more because the heap size is not yet very large and thus
>`gc-cons-percentage' does not yet take precedence over `gc-cons-threshold'.
>
>As for "known in advance", may Emacs keep track of how many GCs are
>triggered by user commands and then adjust GC dynamically?
>
Hi Ihor:
I have this in my early-init since a few years now.
```
(defconst my/file-name-handler-alist file-name-handler-alist)
(defconst my/gc-cons-threshold (* 2 gc-cons-threshold))
(setq-default file-name-handler-alist nil
gc-cons-threshold most-positive-fixnum ;; Defer Garbage collection
gc-cons-percentage 1.0
message-log-max 16384)
(add-hook 'window-setup-hook
(lambda ()
(setq file-name-handler-alist my/file-name-handler-alist
gc-cons-threshold my/gc-cons-threshold
gc-cons-percentage 0.1)
(let ((curtime (current-time)))
(message "Times: init:%.06f total:%.06f gc-done:%d"
(float-time (time-subtract after-init-time before-init-time))
(float-time (time-subtract curtime before-init-time))
gcs-done)))
90)
```
This reduced my load time by 50% on GNU/Linux (a bit more indeed)... on
MS-Windows I am still above the 7 seconds with exactly same config (so
more than 14x slower than GNU/Linux... but I guess the problem is maybe
outside GNU Linux... antivirus virus and MS process creation slowness.)
>--
>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>
>
next prev parent reply other threads:[~2023-03-11 11:17 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230310110747.4hytasakomvdyf7i.ref@Ergus>
2023-03-10 11:07 ` Indentation and gc Ergus
2023-03-10 14:36 ` Dr. Arne Babenhauserheide
2023-03-10 14:54 ` Eli Zaretskii
2023-03-10 19:23 ` Dr. Arne Babenhauserheide
2023-03-11 6:38 ` Eli Zaretskii
2023-03-11 6:55 ` Dr. Arne Babenhauserheide
2023-03-11 7:56 ` Eli Zaretskii
2023-03-11 12:34 ` Dr. Arne Babenhauserheide
2023-03-11 13:08 ` Eli Zaretskii
2023-03-11 13:31 ` Ihor Radchenko
2023-03-11 13:44 ` Eli Zaretskii
2023-03-11 13:53 ` Ihor Radchenko
2023-03-11 14:09 ` Eli Zaretskii
2023-03-12 14:20 ` Ihor Radchenko
2023-03-12 14:40 ` Eli Zaretskii
2023-03-12 15:04 ` Ihor Radchenko
2023-03-12 15:26 ` Eli Zaretskii
2023-03-13 15:09 ` Ihor Radchenko
2023-03-13 15:37 ` Eli Zaretskii
2023-03-13 15:45 ` Ihor Radchenko
2023-03-13 16:58 ` Eli Zaretskii
2023-03-13 18:04 ` Ihor Radchenko
2023-03-14 12:19 ` Eli Zaretskii
2023-03-15 10:28 ` Ihor Radchenko
2023-03-15 12:54 ` Eli Zaretskii
2023-03-15 12:59 ` Ihor Radchenko
2023-03-15 14:20 ` Eli Zaretskii
2023-03-16 10:27 ` Ihor Radchenko
2023-04-06 9:13 ` Ihor Radchenko
2023-04-08 8:04 ` Eli Zaretskii
2023-04-08 8:15 ` Ihor Radchenko
2023-04-08 10:03 ` Eli Zaretskii
2023-04-14 17:07 ` Ihor Radchenko
2023-04-14 17:56 ` Eli Zaretskii
2023-03-13 18:14 ` Gregor Zattler
2023-03-14 12:30 ` Eli Zaretskii
2023-03-14 15:19 ` Gregor Zattler
2023-03-11 16:19 ` Dr. Arne Babenhauserheide
2023-03-12 13:27 ` Ihor Radchenko
2023-03-12 14:10 ` Eli Zaretskii
2023-03-12 14:50 ` Ihor Radchenko
2023-03-12 15:13 ` Eli Zaretskii
2023-03-12 17:15 ` Gregor Zattler
2023-03-12 20:07 ` Eli Zaretskii
2023-03-13 15:01 ` Ihor Radchenko
2023-03-13 15:33 ` Eli Zaretskii
2023-03-13 15:39 ` Ihor Radchenko
2023-03-13 15:39 ` Eli Zaretskii
2023-03-13 16:04 ` Ihor Radchenko
2023-03-13 16:52 ` Eli Zaretskii
2023-03-14 12:47 ` Ihor Radchenko
2023-03-14 13:09 ` Eli Zaretskii
2023-03-15 10:29 ` Ihor Radchenko
2023-03-13 15:41 ` Eli Zaretskii
2023-03-14 13:01 ` Ihor Radchenko
2023-03-11 10:54 ` Ihor Radchenko
2023-03-11 11:17 ` Ergus [this message]
2023-03-11 11:23 ` Ihor Radchenko
2023-03-11 12:31 ` Eli Zaretskii
2023-03-11 12:39 ` Ihor Radchenko
2023-03-11 12:40 ` Eli Zaretskii
2023-03-11 12:54 ` Ihor Radchenko
2023-03-11 13:01 ` Dr. Arne Babenhauserheide
2023-03-11 13:14 ` Eli Zaretskii
2023-03-11 13:38 ` Ihor Radchenko
2023-03-11 13:46 ` Eli Zaretskii
2023-03-11 13:54 ` Ihor Radchenko
2023-03-11 14:11 ` Eli Zaretskii
2023-03-11 14:18 ` Ihor Radchenko
2023-03-11 14:20 ` Eli Zaretskii
2023-03-11 14:31 ` Ihor Radchenko
2023-03-11 15:32 ` Eli Zaretskii
2023-03-11 15:52 ` Lynn Winebarger
2023-03-11 16:24 ` Eli Zaretskii
2023-03-11 17:10 ` Gregor Zattler
2023-03-11 17:25 ` Eli Zaretskii
2023-03-11 18:35 ` Gregor Zattler
2023-03-11 18:49 ` Eli Zaretskii
2023-03-13 12:45 ` Ihor Radchenko
2023-03-13 12:51 ` Eli Zaretskii
2023-06-14 14:16 ` Ihor Radchenko
2023-06-14 15:36 ` Eli Zaretskii
2023-06-14 15:58 ` Ihor Radchenko
2023-06-14 16:07 ` Eli Zaretskii
2023-06-16 10:00 ` Ihor Radchenko
2023-06-16 10:33 ` Eli Zaretskii
2023-06-16 11:03 ` Ihor Radchenko
2023-06-16 11:34 ` Eli Zaretskii
2023-06-21 10:37 ` Ihor Radchenko
2023-06-21 11:11 ` Eli Zaretskii
2023-03-11 13:00 ` Po Lu
2023-03-11 12:37 ` Eli Zaretskii
2023-03-11 13:10 ` Ihor Radchenko
2023-03-11 13:38 ` Eli Zaretskii
2023-03-10 14:52 ` Eli Zaretskii
2023-03-10 21:30 ` Ergus
2023-03-11 6:52 ` Eli Zaretskii
2023-03-21 7:11 ` Jean Louis
2023-03-21 7:27 ` Emanuel Berg
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