From: David Engster <deng@randomsample.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: mattiase@acm.org, emacs-devel@gnu.org, gregory@heytings.org,
monnier@iro.umontreal.ca, Alan Mackenzie <acm@muc.de>,
larsi@gnus.org
Subject: Re: Time to merge scratch/correct-warning-pos into master, perhaps?
Date: Sat, 19 Feb 2022 18:43:34 +0100 [thread overview]
Message-ID: <874k4u92gp.fsf@randomsample> (raw)
In-Reply-To: <831qzyzt5t.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 19 Feb 2022 19:02:22 +0200")
>> Date: Sat, 19 Feb 2022 16:42:07 +0000
>> Cc: gregory@heytings.org, monnier@iro.umontreal.ca, mattiase@acm.org,
>> larsi@gnus.org, emacs-devel@gnu.org
>> From: Alan Mackenzie <acm@muc.de>
>>
>> I haven't got any useful information out of the exercise, so far. I
>> can't help feeling that I'm missing something. Is there anything I ought
>> to be doing that I've not yet done?
>
> Maybe you should make EQ real function, with an attribute that would
> preclude its inlining.
>
> I have no other ideas. Maybe someone else does.
Making EQ a non-inlined function would be the first step. But since perf
is a sampling profiler, it is not easy to measure something that's
already very quick - it's simply quite unlikely that perf would hit it,
unless it is called extremely often. The default sampling frequency of
perf is 1kHz, so the first thing you can try is to increase that, so
that it becomes more likely to hit EQ (see the '-F' switch for 'perf
record').
However, it might simply be that a tracing profiler would be the better
choice here, so maybe look into good old gprof or valgrind. Or maybe
even instrument EQ yourself and count cycles between start and end.
-David
next prev parent reply other threads:[~2022-02-19 17:43 UTC|newest]
Thread overview: 150+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-15 18:15 Time to merge scratch/correct-warning-pos into master, perhaps? Alan Mackenzie
2022-01-15 18:24 ` Eli Zaretskii
2022-01-16 8:24 ` Lars Ingebrigtsen
2022-01-16 9:51 ` Po Lu
2022-01-16 13:50 ` Alan Mackenzie
2022-01-16 12:02 ` Lars Ingebrigtsen
2022-01-16 12:06 ` Po Lu
2022-01-16 13:12 ` Lars Ingebrigtsen
2022-01-16 14:02 ` Alan Mackenzie
2022-01-17 0:28 ` Po Lu
2022-01-17 3:28 ` Eli Zaretskii
2022-01-17 3:37 ` Po Lu
2022-01-16 14:00 ` Alan Mackenzie
2022-01-16 12:23 ` Eli Zaretskii
2022-01-16 12:26 ` Lars Ingebrigtsen
2022-01-16 12:36 ` Eli Zaretskii
2022-01-16 14:06 ` Alan Mackenzie
2022-01-16 14:11 ` Lars Ingebrigtsen
2022-01-16 14:21 ` Eli Zaretskii
2022-01-16 14:45 ` Alan Mackenzie
2022-01-16 15:04 ` Eli Zaretskii
2022-01-16 15:26 ` Alan Mackenzie
2022-01-16 15:43 ` Eli Zaretskii
2022-01-16 15:50 ` Alan Mackenzie
2022-01-16 13:47 ` Alan Mackenzie
2022-01-16 14:10 ` Lars Ingebrigtsen
2022-01-16 14:59 ` Stefan Monnier
2022-01-16 14:57 ` Stefan Monnier
2022-01-16 15:04 ` Lars Ingebrigtsen
2022-01-16 15:37 ` Alan Mackenzie
2022-01-16 15:50 ` Mattias Engdegård
2022-01-16 16:18 ` Alan Mackenzie
2022-01-16 16:52 ` Mattias Engdegård
2022-01-16 17:13 ` Stefan Monnier
2022-01-16 17:24 ` Mattias Engdegård
2022-01-22 12:23 ` Alan Mackenzie
2022-01-22 14:30 ` Lars Ingebrigtsen
2022-01-22 15:09 ` Alan Mackenzie
2022-01-22 15:26 ` Lars Ingebrigtsen
2022-01-22 15:36 ` Eli Zaretskii
2022-01-22 18:30 ` Alan Mackenzie
2022-01-23 12:45 ` Lars Ingebrigtsen
2022-01-22 16:06 ` Mattias Engdegård
2022-01-22 17:02 ` Gregory Heytings
2022-01-22 17:46 ` Eli Zaretskii
2022-01-22 18:01 ` Gregory Heytings
2022-01-22 18:12 ` Eli Zaretskii
2022-01-22 22:36 ` Gregory Heytings
2022-01-22 22:55 ` Alan Mackenzie
2022-01-23 6:16 ` Eli Zaretskii
2022-01-23 21:53 ` Gregory Heytings
2022-01-24 3:37 ` Eli Zaretskii
2022-01-24 15:20 ` Gregory Heytings
2022-01-24 16:47 ` Eli Zaretskii
2022-01-24 20:41 ` Gregory Heytings
2022-01-25 3:34 ` Eli Zaretskii
2022-01-25 8:59 ` Gregory Heytings
2022-01-25 11:27 ` Alan Mackenzie
2022-01-25 13:27 ` Stefan Monnier
2022-01-25 18:27 ` Alan Mackenzie
2022-01-25 19:26 ` Stefan Monnier
2022-01-25 20:58 ` Alan Mackenzie
2022-01-25 21:27 ` Gregory Heytings
2022-01-26 17:32 ` Alan Mackenzie
2022-01-26 18:59 ` Gregory Heytings
2022-01-26 20:26 ` Alan Mackenzie
2022-01-25 22:11 ` Stefan Monnier
2022-01-25 22:42 ` Óscar Fuentes
2022-01-26 1:08 ` Po Lu
2022-01-26 16:56 ` chad
2022-01-26 17:38 ` Eli Zaretskii
2022-01-26 17:58 ` chad
2022-01-26 18:46 ` Gregory Heytings
2022-01-26 19:47 ` Stefan Monnier
2022-01-26 19:59 ` Alan Mackenzie
2022-01-25 21:18 ` Gregory Heytings
2022-01-25 21:38 ` Gregory Heytings
2022-01-25 22:21 ` Stefan Monnier
2022-01-26 18:36 ` Gregory Heytings
2022-02-04 0:11 ` Gregory Heytings
2022-02-04 11:57 ` Alan Mackenzie
2022-02-04 12:06 ` Eli Zaretskii
2022-02-04 18:31 ` Alan Mackenzie
2022-02-04 18:54 ` Eli Zaretskii
2022-02-04 19:33 ` Alan Mackenzie
2022-02-04 19:46 ` Eli Zaretskii
2022-02-04 21:24 ` Alan Mackenzie
2022-02-04 22:24 ` Stefan Monnier
2022-02-04 22:30 ` Stefan Monnier
2022-02-05 7:28 ` Eli Zaretskii
2022-02-05 18:04 ` Stefan Monnier
2022-02-05 18:31 ` Eli Zaretskii
2022-02-05 8:17 ` Eli Zaretskii
2022-02-06 11:50 ` Alan Mackenzie
2022-02-06 11:56 ` Eli Zaretskii
2022-02-06 18:09 ` Alan Mackenzie
2022-02-06 18:39 ` Eli Zaretskii
2022-02-19 16:42 ` Alan Mackenzie
2022-02-19 17:02 ` Eli Zaretskii
2022-02-19 17:43 ` David Engster [this message]
2022-02-19 22:10 ` Alan Mackenzie
2022-02-20 5:35 ` David Engster
2022-02-20 19:45 ` Alan Mackenzie
2022-02-20 20:37 ` Stefan Monnier
2022-02-20 20:56 ` Alan Mackenzie
2022-02-20 23:02 ` Stefan Monnier
2022-02-21 0:22 ` Óscar Fuentes
2022-02-21 3:31 ` Eli Zaretskii
2022-02-21 4:04 ` Óscar Fuentes
2022-02-21 12:15 ` Eli Zaretskii
2022-02-21 14:55 ` Óscar Fuentes
2022-02-21 3:29 ` Eli Zaretskii
2022-02-19 19:01 ` Stefan Monnier
2022-02-19 19:30 ` Eli Zaretskii
2022-02-19 22:03 ` Alan Mackenzie
2022-02-25 22:29 ` Alan Mackenzie
2022-02-06 18:40 ` Eli Zaretskii
2022-02-06 19:03 ` Eli Zaretskii
2022-02-07 17:36 ` Andrea Corallo
2022-02-05 6:08 ` Lars Ingebrigtsen
2022-02-05 11:42 ` Alan Mackenzie
2022-02-05 21:31 ` Lars Ingebrigtsen
2022-02-06 7:02 ` Eli Zaretskii
2022-02-06 11:38 ` Alan Mackenzie
2022-02-06 23:14 ` Lars Ingebrigtsen
2022-01-25 21:15 ` Gregory Heytings
2022-01-25 21:30 ` Andrea Corallo
2022-01-26 18:43 ` Gregory Heytings
2022-01-26 21:04 ` Andrea Corallo
[not found] ` <b0265c41-7ead-4913-667-d0e76a35b3ba@heytings.org>
2022-01-25 21:16 ` Gregory Heytings
2022-01-25 12:26 ` Eli Zaretskii
2022-01-26 18:41 ` Gregory Heytings
2022-01-26 18:59 ` Eli Zaretskii
2022-01-26 19:14 ` Stefan Monnier
2022-01-26 19:32 ` Eli Zaretskii
2022-01-26 19:34 ` Alan Mackenzie
2022-01-22 18:35 ` Alan Mackenzie
2022-01-22 18:45 ` Gregory Heytings
2022-01-22 18:50 ` Eli Zaretskii
2022-01-22 20:07 ` Gregory Heytings
2022-01-23 5:32 ` Eli Zaretskii
2022-01-23 21:44 ` Gregory Heytings
2022-01-15 22:57 ` Stefan Monnier
2022-01-16 0:27 ` Brahimi Saifullah
2022-01-16 14:53 ` Alan Mackenzie
2022-01-16 16:45 ` Brahimi Saifullah
2022-01-22 11:41 ` Alan Mackenzie
2022-01-22 23:16 ` Brahimi Saifullah
2022-01-23 14:09 ` Alan Mackenzie
2022-01-17 9:38 ` Andrea Corallo
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