From: Dov Grobgeld <dov.grobgeld@gmail.com>
To: Chong Yidong <cyd@gnu.org>
Cc: 10580@debbugs.gnu.org, schwab@linux-m68k.org
Subject: bug#10580: 24.0.92; gdb initialization takes more than one minute at 100% CPU
Date: Thu, 10 May 2012 22:07:38 +0300 [thread overview]
Message-ID: <CA++fsGG9kyesE1W1tK7WJ4CPb+=cENoPr5uVtiKkf=G_r-DCEQ@mail.gmail.com> (raw)
In-Reply-To: <87pqacrunj.fsf@gnu.org>
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Here are the tests when using the the latest cvs gdb that yields a gdb
output file of about 800k.
Without gdb-get-source-file-list override: ~139s
With gdb-get-source-file-list override: ~125s
Thus it is clear that most of the time is taken just reading the string
into emacs. But doing find-file on the same file is almost instantaneous.
Regards,
Dov
On Thu, May 10, 2012 at 5:13 PM, Chong Yidong <cyd@gnu.org> wrote:
> Dov Grobgeld <dov.grobgeld@gmail.com> writes:
>
> > Still, it bothering me the fact that the above perl expression parses
> > the gdb output in a fraction of a second, (0.01s user time) whereas
> > gdb-mi.el takes more than 40s.
>
> I would also like to learn more about where the bottleneck is.
>
> Could you do the following:
>
> M-: (require 'gdb-mi) RET
> M-: (defun gdb-get-source-file-list () nil) RET
>
> then run M-x gdb as usual, and see if that makes any difference in
> performance? Leave gdb-create-source-file-list set at t.
>
> (The above steps cause gdb-mi to issue the -file-list-exec-source-files
> command and read the output, as usual, but skip parsing the output into
> the source file list.)
>
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next prev parent reply other threads:[~2012-05-10 19:07 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-22 12:42 bug#10580: 24.0.92; gdb initialization takes more than one minute at 100% CPU Dov Grobgeld
2012-01-23 0:53 ` Glenn Morris
[not found] ` <CA++fsGG4YuTtb2VC9R+GRcPN5+JSaKpkb+uO3WAX0+VXmh8HDQ@mail.gmail.com>
2012-01-23 9:21 ` Glenn Morris
2012-01-25 0:37 ` Glenn Morris
2012-01-25 8:49 ` Dov Grobgeld
2012-01-25 9:39 ` Dov Grobgeld
2012-01-25 19:05 ` Glenn Morris
2012-04-30 5:33 ` Dov Grobgeld
2012-04-30 6:36 ` Dov Grobgeld
2012-05-06 4:13 ` Chong Yidong
2012-05-06 4:55 ` Dov Grobgeld
2012-05-06 5:39 ` Chong Yidong
2012-05-06 7:06 ` Dov Grobgeld
2012-05-07 2:53 ` Chong Yidong
2012-05-07 5:07 ` Dov Grobgeld
2012-05-07 6:11 ` Chong Yidong
2012-05-07 6:26 ` Chong Yidong
2012-05-08 5:33 ` Dov Grobgeld
2012-05-08 7:56 ` Dov Grobgeld
2012-05-08 8:28 ` Chong Yidong
2012-05-08 11:59 ` Dov Grobgeld
2012-05-08 16:25 ` Chong Yidong
2012-05-08 17:47 ` Eli Zaretskii
2012-05-08 21:07 ` Dov Grobgeld
2012-05-08 21:24 ` Andreas Schwab
2012-05-08 21:30 ` Dov Grobgeld
2012-05-09 7:47 ` Andreas Schwab
2012-05-09 8:44 ` Dov Grobgeld
2012-05-09 17:36 ` Eli Zaretskii
2012-05-10 6:00 ` Dov Grobgeld
2012-05-10 14:13 ` Chong Yidong
2012-05-10 19:07 ` Dov Grobgeld [this message]
2012-05-10 20:25 ` Stefan Monnier
2012-05-11 6:33 ` Chong Yidong
2012-05-11 8:29 ` Dov Grobgeld
2012-05-11 9:47 ` Eli Zaretskii
2012-05-11 13:27 ` Chong Yidong
2012-11-05 20:36 ` Dov Grobgeld
2012-11-05 20:46 ` Eli Zaretskii
2012-11-05 23:51 ` Stefan Monnier
2012-05-10 16:32 ` Eli Zaretskii
2012-05-10 18:43 ` Dov Grobgeld
2012-05-08 17:38 ` Eli Zaretskii
2012-12-14 4:14 ` bug#10580: 24.0.92; gdb initialization takes more than one minute at 100 Jean-Philippe Gravel
2012-12-18 4:45 ` Jean-Philippe Gravel
2012-12-21 4:01 ` Chong Yidong
2013-03-01 3:31 ` Jean-Philippe Gravel
2013-03-11 17:14 ` Stefan Monnier
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