* Native play function slows down emacs on RH 7.3
@ 2002-07-14 12:54 TV Raman
2002-07-16 13:29 ` Richard Stallman
0 siblings, 1 reply; 3+ messages in thread
From: TV Raman @ 2002-07-14 12:54 UTC (permalink / raw)
I found this initially with the latest 21 pretest, but on further
checking , the problems appears to be present on the 21.2.1
build bundled by Redhat 7.3.
If you use the built-in play-sound function,
things feel slower than when using (shell-command "play "...)
It's hard to articulate the "feel slower" bit --
but at least when I switched emacspeak to start using play-sound,
the rest of emacs felt sluggish.
--
Best Regards,
--raman
------------------------------------------------------------
T. V. Raman: PhD (Cornell University)
IBM Research: Human Language Technologies
Architect: Conversational And Multimodal WWW Standards
Phone: 1 (408) 927 2608 T-Line 457-2608
Fax: 1 (408) 927 3012
Email: tvraman@us.ibm.com
WWW: http://www.cs.cornell.edu/home/raman
AIM: TVRaman
PGP: http://emacspeak.sf.net/raman.asc
Snail: IBM Almaden Research Center,
650 Harry Road
San Jose 95120
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Native play function slows down emacs on RH 7.3
2002-07-14 12:54 Native play function slows down emacs on RH 7.3 TV Raman
@ 2002-07-16 13:29 ` Richard Stallman
2002-07-23 23:17 ` TV Raman
0 siblings, 1 reply; 3+ messages in thread
From: Richard Stallman @ 2002-07-16 13:29 UTC (permalink / raw)
Cc: bug-gnu-emacs
If you use the built-in play-sound function,
things feel slower than when using (shell-command "play "...)
It's hard to articulate the "feel slower" bit --
but at least when I switched emacspeak to start using play-sound,
the rest of emacs felt sluggish.
Can you investigate a little--by seeing what method Emacs uses to play
a sound, and what method the `play' program uses? Maybe we're not
using the best method, or we might be using it wrong.
Unfortunately I know next to nothing about the facilities for playing
sound.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Native play function slows down emacs on RH 7.3
2002-07-16 13:29 ` Richard Stallman
@ 2002-07-23 23:17 ` TV Raman
0 siblings, 0 replies; 3+ messages in thread
From: TV Raman @ 2002-07-23 23:17 UTC (permalink / raw)
Cc: tvraman, bug-gnu-emacs
I looked at the code in src/sound.c --and things look okay with
respect to how the sound is played.
The problem is that the function as written is synchronous
--i.e. returns only ater the sound is done playing
--which explains the slowness I perceived.
It might be useful to have the function parse its args, check the
validity of the sound data --and then
fork to play the sound so emacs can continue what it is doing.
Richard Stallman writes:
> If you use the built-in play-sound function,
> things feel slower than when using (shell-command "play "...)
>
> It's hard to articulate the "feel slower" bit --
> but at least when I switched emacspeak to start using play-sound,
> the rest of emacs felt sluggish.
>
> Can you investigate a little--by seeing what method Emacs uses to play
> a sound, and what method the `play' program uses? Maybe we're not
> using the best method, or we might be using it wrong.
>
> Unfortunately I know next to nothing about the facilities for playing
> sound.
--
Best Regards,
--raman
------------------------------------------------------------
T. V. Raman: PhD (Cornell University)
IBM Research: Human Language Technologies
Architect: Conversational And Multimodal WWW Standards
Phone: 1 (408) 927 2608 T-Line 457-2608
Fax: 1 (408) 927 3012
Email: tvraman@us.ibm.com
WWW: http://www.cs.cornell.edu/home/raman
AIM: TVRaman
PGP: http://emacspeak.sf.net/raman.asc
Snail: IBM Almaden Research Center,
650 Harry Road
San Jose 95120
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-07-14 12:54 Native play function slows down emacs on RH 7.3 TV Raman
2002-07-16 13:29 ` Richard Stallman
2002-07-23 23:17 ` TV Raman
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