From: Andrea Corallo <acorallo@gnu.org>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: Eli Zaretskii <eliz@gnu.org>,
yantar92@posteo.net, 70796@debbugs.gnu.org,
Tassilo Horn <tsdh@gnu.org>
Subject: bug#70796: 30.0.50; bug-reference-mode leading to constant GCing
Date: Mon, 17 Jun 2024 05:30:51 -0400 [thread overview]
Message-ID: <yp1iky7j4qc.fsf@fencepost.gnu.org> (raw)
In-Reply-To: <m2h6dsq6vs.fsf@pro2.fritz.box> ("Gerd Möllmann"'s message of "Mon, 17 Jun 2024 11:02:31 +0200")
Gerd Möllmann <gerd.moellmann@gmail.com> writes:
> Andrea Corallo <acorallo@gnu.org> writes:
>
>> Tassilo Horn <tsdh@gnu.org> writes:
>>
>>> Andrea Corallo <acorallo@gnu.org> writes:
>>>
>>>> Okay, so this is what I tried:
>>>>
>>>> I bootstrapped two Emacs from current master (7be66d8223e) one
>>>> --with-native-compilation=yes the other --with-native-compilation=no
>>>> and boths with Gerd patch applied.
>>>>
>>>> Also I checkout current scratch/igc (2343d55dff4) to get igc.org.
>>>>
>>>> I then tried to run with boths native/non-native emacsen with:
>>>>
>>>> .../src/emacs -eval '(setq garbage-collection-messages t)' -Q
>>>> ~/emacs4/admin/igc.org
>>>>
>>>> Once started looking in *Messages* I see 7 GC cycles in the the
>>>> non-native build and 5 in the native one, also I can scroll without
>>>> issues or other GC cycles.
>>>>
>>>> Note that only during the first start the native copiled Emacs did a
>>>> number of GC cycles more to jit some code but I guess that's expected.
>>>>
>>>> Am I trying to repruduce this correctly?
>>>
>>> Yes. And you also need to put some function in addition to
>>> font-lock-fontify-region in jit-lock-functions, either by enabling
>>> bug-reference-mode, goto-address-mode, or simply defining
>>>
>>> (defun i-do-nothing (start end) nil)
>>>
>>> and then M-: (jit-lock-register #'i-do-nothing) RET in the igc.org
>>> buffer.
>>>
>>> Bye,
>>> Tassilo
>>
>> Okay I tried both your suggestion both Gerd's one on the native compiled
>> instance with no effect on the number of GC cycles (I'm on GNU/Linux X86-64).
>>
>> The best I can do is to try later this afternoon on GNU/Linux AArch64
>> and see if something changes.
>
> Thanks. I'm still suspecting either macOS or libgccjit 14 on arm64, BTW,
> or a combination. But I guess I already mentioned that :-).
Right I repeated the test on AArch64 using.
This is the content of my *Messages* after opening igc.org, defining and
registering 'i-do-nothing', and scrolling a bit up and down.
=====
For information about GNU Emacs and the GNU system, type C-h C-a.
Garbage collecting... [25 times]
i-do-nothing
(jit-lock-function)
Garbage collecting...done
===
We see some more GC cycles compared to X86_64 at the beginning but I
guess that's not the focus here because after 'i-do-nothing' is
registered I see only a GC cycle and nothing more (even if I scroll).
So to me this all looks good.
PS On this machine I'm on libgccjit 13.2.1.
Andrea
next prev parent reply other threads:[~2024-06-17 9:30 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-06 6:53 bug#70796: 30.0.50; bug-reference-mode leading to constant GCing Gerd Möllmann
2024-05-06 11:48 ` Eli Zaretskii
2024-05-06 12:35 ` Gerd Möllmann
2024-05-06 14:03 ` Eli Zaretskii
2024-05-06 14:09 ` Gerd Möllmann
2024-05-07 6:58 ` Gerd Möllmann
2024-05-18 6:27 ` Gerd Möllmann
2024-05-18 8:07 ` Eli Zaretskii
2024-05-18 15:49 ` Tassilo Horn
2024-05-24 20:00 ` Tassilo Horn
2024-05-24 20:19 ` Gerd Möllmann
2024-05-24 20:28 ` Ihor Radchenko
2024-05-25 4:08 ` Gerd Möllmann
2024-05-24 21:34 ` Tassilo Horn
2024-05-25 4:34 ` Gerd Möllmann
2024-05-25 7:37 ` Tassilo Horn
2024-05-25 7:58 ` Gerd Möllmann
2024-05-25 8:17 ` Tassilo Horn
2024-06-01 9:05 ` Gerd Möllmann
2024-06-15 7:54 ` Eli Zaretskii
2024-06-15 8:07 ` Gerd Möllmann
2024-06-16 9:45 ` Tassilo Horn
2024-06-16 10:44 ` Eli Zaretskii
2024-06-17 7:34 ` Andrea Corallo
2024-06-17 8:07 ` Andrea Corallo
2024-06-17 8:19 ` Tassilo Horn
2024-06-17 8:30 ` Andrea Corallo
2024-06-17 9:02 ` Gerd Möllmann
2024-06-17 9:30 ` Andrea Corallo [this message]
2024-06-17 9:53 ` Gerd Möllmann
2024-06-17 10:10 ` Andrea Corallo
2024-06-17 10:33 ` Gerd Möllmann
2024-06-17 14:13 ` Andrea Corallo
2024-06-17 8:21 ` Gerd Möllmann
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