From: Dmitry Antipov <dmantipov@yandex.ru>
To: "Clément Pit--Claudel" <clement.pitclaudel@live.com>
Cc: 21028@debbugs.gnu.org
Subject: bug#21028: Performance regression in revision af1a69f4d17a482c359d98c00ef86fac835b5fac (Apr 2014).
Date: Wed, 15 Jul 2015 15:32:36 +0300 [thread overview]
Message-ID: <55A652E4.5000606@yandex.ru> (raw)
In-Reply-To: <559FF8F6.2060209@live.com>
On 07/10/2015 07:55 PM, Clément Pit--Claudel wrote:
> The figures are very similar to the tests above: with that patch inserting 50 lines takes 3 seconds,
> and without it it's instantaneous. Thus I think it's safe to say that this particular patch is indeed
> responsible for the performance regression. But maybe I'm missing something?
As of c40ea1328bb33abaec14f1fc92ac2349b5ee2715, I can't reproduce this issue, with your fontset setup
from http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21028#17. Cursor motion and keyboard/mouse selection
are smooth, and CPU/memory usage looks normal.
My suggestions are:
1) Re-run your timed tests from http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21028#20 under /usr/bin/time,
not time (the latter is a simple shell builtin). /usr/bin/time also shows memory usage; if "bad" (current)
instance consumes more memory than "good" (with reverted change) one, there may be nasty GC issue.
2) 3 seconds is large enough to leave the traces in profiled runs. On GNU/Linux, it may be worth trying
to run under perf, both "good" and "bad" cases, and comparing reports.
Dmitry
next prev parent reply other threads:[~2015-07-15 12:32 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-10 10:34 bug#21028: Performance regression in revision af1a69f4d17a482c359d98c00ef86fac835b5fac (Apr 2014) Clément Pit--Claudel
2015-07-10 12:30 ` Eli Zaretskii
2015-07-10 16:02 ` Clément Pit--Claudel
2015-07-10 12:41 ` Eli Zaretskii
2015-07-10 16:55 ` Clément Pit--Claudel
2015-07-15 12:32 ` Dmitry Antipov [this message]
2015-07-18 10:24 ` Clément Pit--Claudel
2015-07-18 11:16 ` Clément Pit--Claudel
2015-07-18 11:26 ` Eli Zaretskii
2015-07-18 20:08 ` Clément Pit--Claudel
2016-03-03 6:12 ` Clément Pit--Claudel
2016-03-03 6:42 ` Clément Pit--Claudel
2016-03-03 7:08 ` Clément Pit--Claudel
2016-03-03 7:33 ` Clément Pit--Claudel
2016-03-03 17:10 ` Glenn Morris
2016-03-03 17:28 ` Clément Pit--Claudel
2016-03-03 20:27 ` Eli Zaretskii
2016-07-20 21:26 ` Clément Pit--Claudel
2016-07-21 14:21 ` Eli Zaretskii
2016-07-21 14:33 ` Clément Pit--Claudel
2016-07-23 20:50 ` Clément Pit--Claudel
2016-10-04 22:17 ` Clément Pit--Claudel
2016-10-26 17:15 ` Clément Pit--Claudel
2016-10-27 14:38 ` Eli Zaretskii
2016-10-27 15:29 ` Clément Pit--Claudel
2016-10-27 15:55 ` Eli Zaretskii
2016-10-28 14:23 ` Clément Pit--Claudel
2016-10-28 14:33 ` Eli Zaretskii
2016-11-18 8:55 ` Eli Zaretskii
2016-12-18 17:33 ` Clément Pit--Claudel
2016-12-18 17:37 ` Eli Zaretskii
2016-12-18 18:04 ` Clément Pit--Claudel
2016-12-18 19:52 ` Eli Zaretskii
2016-12-18 20:44 ` Clément Pit--Claudel
2016-12-19 15:50 ` Eli Zaretskii
2016-12-19 16:25 ` Clément Pit--Claudel
2016-12-19 16:39 ` Eli Zaretskii
2016-12-19 16:55 ` Clément Pit--Claudel
2016-12-19 16:58 ` Eli Zaretskii
2016-12-19 17:13 ` Clément Pit--Claudel
2016-12-22 16:25 ` Eli Zaretskii
2016-12-22 16:49 ` Clément Pit--Claudel
2016-12-22 18:04 ` Eli Zaretskii
2016-12-22 19:08 ` Clément Pit--Claudel
2017-02-10 4:45 ` Clément Pit--Claudel
2017-03-12 11:38 ` Clément Pit--Claudel
2017-03-12 15:49 ` Eli Zaretskii
2017-03-12 17:24 ` Clément Pit--Claudel
2017-03-12 17:48 ` Eli Zaretskii
2017-03-12 19:19 ` Clément Pit--Claudel
2017-03-13 15:46 ` Eli Zaretskii
2017-03-13 16:36 ` Clément Pit--Claudel
2017-03-13 17:22 ` Eli Zaretskii
2017-03-13 19:04 ` Clément Pit--Claudel
2017-03-13 20:53 ` Eli Zaretskii
2017-03-14 19:45 ` Clément Pit--Claudel
2017-03-15 15:37 ` Eli Zaretskii
2017-03-14 15:45 ` Eli Zaretskii
2017-03-14 19:35 ` Clément Pit--Claudel
2017-03-15 15:36 ` Eli Zaretskii
2017-03-15 20:46 ` Clément Pit--Claudel
2017-03-16 15:27 ` Eli Zaretskii
2017-03-16 21:23 ` Clément Pit--Claudel
2017-03-17 8:15 ` Eli Zaretskii
2017-04-16 7:48 ` Eli Zaretskii
2017-04-16 15:28 ` Clément Pit--Claudel
2016-12-19 17:00 ` Clément Pit--Claudel
2015-07-10 15:42 ` Glenn Morris
2016-03-03 6:37 ` Clément Pit--Claudel
2016-10-04 18:56 ` Jason Gross
2017-03-13 15:54 ` bug#21028: Slow font rendering in emacs Ralf Jung
2017-03-13 17:05 ` Eli Zaretskii
2017-03-13 18:12 ` Ralf Jung
2017-03-13 20:39 ` Eli Zaretskii
2017-03-14 15:57 ` Ralf Jung
2017-03-14 17:11 ` Eli Zaretskii
2017-03-14 18:50 ` Ralf Jung
2017-03-14 19:16 ` Eli Zaretskii
2017-03-14 19:17 ` Ralf Jung
2017-03-14 20:49 ` John Mastro
2017-03-15 15:40 ` Eli Zaretskii
2017-03-14 15:47 ` Eli Zaretskii
2017-03-14 18:41 ` Ralf Jung
2017-03-14 19:16 ` Eli Zaretskii
2017-03-14 19:39 ` Ralf Jung
2017-03-14 19:45 ` Ralf Jung
2017-03-15 15:36 ` Eli Zaretskii
2017-04-22 8:54 ` Ralf Jung
2017-04-22 13:40 ` Eli Zaretskii
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