From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: tomo@cx4a.org, Stefan Monnier <monnier@iro.umontreal.ca>,
emacs-devel@gnu.org
Subject: Re: Elisp native profiler
Date: Mon, 01 Oct 2012 09:41:37 -0700 [thread overview]
Message-ID: <5069C7C1.7040206@cs.ucla.edu> (raw)
In-Reply-To: <83txueb63s.fsf@gnu.org>
On 10/01/2012 07:48 AM, Eli Zaretskii wrote:
> Here's one data point: on a Windows XP system based on Core i7 CPU at
> 3.4GHz, running the profiler in an optimized build makes one of the 8
> cores fully (90%) busy.
That doesn't sound good. Is this the main thread, the one that
runs the Emacs interpreter? Then presumably it's running at roughly
10% of effectiveness. And if it's *not* the main thread, there
are some race condition gotchas; the profiler signal handler
should not run in parallel with the garbage collector.
It's quite worrisome that a simple counting operation, done every 15 ms,
should nearly peg a core. Something seems amiss.
next prev parent reply other threads:[~2012-10-01 16:41 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-25 2:41 Elisp native profiler Stefan Monnier
2012-09-25 11:40 ` Juanma Barranquero
2012-09-25 13:18 ` Eli Zaretskii
2012-09-25 13:26 ` Eli Zaretskii
2012-09-25 17:28 ` Stefan Monnier
2012-09-25 19:21 ` Paul Eggert
2012-09-25 20:12 ` Eli Zaretskii
2012-09-26 0:55 ` Stefan Monnier
2012-09-26 6:16 ` Tomohiro Matsuyama
2012-09-26 7:35 ` Eli Zaretskii
2012-09-26 7:59 ` Tomohiro Matsuyama
2012-09-26 9:32 ` Eli Zaretskii
2012-09-26 22:46 ` Tomohiro Matsuyama
2012-09-27 5:55 ` Eli Zaretskii
2012-09-27 7:01 ` Eli Zaretskii
2012-09-27 12:37 ` Stefan Monnier
2012-09-27 17:49 ` Eli Zaretskii
2012-09-27 17:52 ` Eli Zaretskii
2012-09-27 20:35 ` Stefan Monnier
2012-09-27 20:46 ` Eli Zaretskii
2012-09-27 22:12 ` Stefan Monnier
2012-09-28 7:09 ` Eli Zaretskii
2012-09-28 8:24 ` Stefan Monnier
2012-09-28 14:11 ` Eli Zaretskii
2012-09-28 8:03 ` Stephen Berman
2012-09-28 8:26 ` Stefan Monnier
2012-09-30 7:39 ` Paul Eggert
2012-09-30 7:58 ` Eli Zaretskii
2012-09-28 10:09 ` Tomohiro Matsuyama
2012-09-28 11:05 ` Eli Zaretskii
2012-09-28 12:43 ` Stefan Monnier
2012-09-28 14:16 ` Eli Zaretskii
2012-09-28 20:11 ` Stefan Monnier
2012-09-28 20:14 ` Eli Zaretskii
2012-09-29 2:13 ` Stefan Monnier
2012-09-28 12:40 ` Stefan Monnier
2012-09-26 17:42 ` Stefan Monnier
2012-09-26 22:52 ` Tomohiro Matsuyama
2012-09-28 9:14 ` Tomohiro Matsuyama
2012-09-28 11:00 ` Eli Zaretskii
2012-09-30 7:37 ` Paul Eggert
2012-09-30 7:58 ` Eli Zaretskii
2012-09-30 8:16 ` Paul Eggert
2012-09-28 12:37 ` Stefan Monnier
2012-09-30 16:42 ` Tomohiro Matsuyama
2012-09-30 19:23 ` Paul Eggert
2012-09-30 20:13 ` Stefan Monnier
2012-09-30 20:43 ` Paul Eggert
2012-10-01 0:41 ` Stefan Monnier
2012-10-01 1:49 ` Paul Eggert
2012-10-01 14:25 ` Stefan Monnier
2012-10-01 14:48 ` Eli Zaretskii
2012-10-01 16:31 ` Stefan Monnier
2012-10-01 17:19 ` Eli Zaretskii
2012-10-01 16:41 ` Paul Eggert [this message]
2012-10-01 17:52 ` Eli Zaretskii
2012-10-01 17:59 ` Eli Zaretskii
2012-10-01 21:12 ` Eli Zaretskii
2012-10-01 22:21 ` Paul Eggert
2012-10-02 2:06 ` Stefan Monnier
2012-10-02 4:00 ` Eli Zaretskii
2012-10-02 12:58 ` Stefan Monnier
2012-10-02 17:14 ` Eli Zaretskii
2012-10-03 1:27 ` Stefan Monnier
2012-10-02 5:28 ` Paul Eggert
2012-10-02 13:00 ` Stefan Monnier
2012-10-02 16:17 ` Paul Eggert
2012-10-02 13:23 ` Jason Rumney
2012-10-02 17:20 ` Eli Zaretskii
2012-10-03 14:25 ` Jason Rumney
2012-10-03 17:43 ` Eli Zaretskii
2012-10-01 15:10 ` Paul Eggert
2012-10-01 10:37 ` Eli Zaretskii
2012-10-01 11:25 ` Tomohiro Matsuyama
2012-10-01 14:59 ` Paul Eggert
2012-10-01 14:54 ` Paul Eggert
2012-10-01 15:28 ` Eli Zaretskii
2012-10-01 16:34 ` Stefan Monnier
2012-10-01 16:51 ` Paul Eggert
[not found] ` <1349123390.31932.1@faina>
2012-10-02 6:41 ` Paul Eggert
2012-10-02 13:03 ` Stefan Monnier
2012-10-03 5:11 ` Paul Eggert
2012-10-03 12:50 ` Stefan Monnier
2012-10-03 14:06 ` Andreas Schwab
2012-10-03 17:22 ` Stefan Monnier
2012-10-03 17:39 ` Eli Zaretskii
2012-10-01 16:39 ` Paul Eggert
2012-09-30 22:28 ` Tomohiro Matsuyama
2012-09-30 22:26 ` Tomohiro Matsuyama
2012-09-26 7:39 ` Tomohiro Matsuyama
2012-09-26 14:33 ` Paul Eggert
2012-09-26 18:58 ` Ivan Andrus
2012-09-27 1:11 ` Paul Eggert
2012-09-25 20:10 ` Eli Zaretskii
2012-09-26 0:53 ` Stefan Monnier
2012-09-26 0:30 ` Stephen J. Turnbull
2012-09-26 1:00 ` Stefan Monnier
2012-09-26 7:41 ` Eli Zaretskii
2012-09-26 12:55 ` Stefan Monnier
2012-09-26 13:19 ` Eli Zaretskii
2012-09-26 13:26 ` Eli Zaretskii
2012-09-26 17:49 ` Stefan Monnier
2012-09-26 19:31 ` Eli Zaretskii
2012-09-26 20:20 ` Stefan Monnier
2012-09-26 22:50 ` Tomohiro Matsuyama
2012-09-27 4:02 ` Stefan Monnier
2012-09-30 7:32 ` Paul Eggert
2012-09-29 15:24 ` Eli Zaretskii
2012-09-29 16:06 ` Stefan Monnier
2012-09-29 16:18 ` Eli Zaretskii
2012-09-29 20:17 ` Stefan Monnier
2012-09-30 15:54 ` Eli Zaretskii
2012-09-25 13:40 ` Juanma Barranquero
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