found temporary fix for 2.6.10 and 2.6.11 software speechproblem

[Sean McMahon]

On my system if I do ps -e, speech-dispatcher has several process ids.  should I
renice all of them?  Speech-dispatcher on my setup runs as a demon.  There may
have been some slite improvement with char typing and maybe a slight increase in
speech, but still has lag with large blocks of text.  It'll be interesting to
see what this does on my new system or not-so-old system when they're setup.
----- Original Message ----- 
From: "Janina Sajka" <janina at rednote.net>
To: "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca>
Sent: Thursday, March 24, 2005 6:38 AM
Subject: Re: found temporary fix for 2.6.10 and 2.6.11 software speechproblem


> Thanks, David. How can I say it? Very, ahem, nice? <grin>
>
> I shall probably need to muck around with the settings. Your minus five
> and vie numbers do seem to have improved things, but there's still way
> to much lag for me when typing chars.
>
> Question: Do you notice more lag on capital letters than on lower case?
> I get significantly more lag on caps, perhaps more than twice as long.
>
> David Bruzos writes:
> > Hi Janina:
> > Use the "nice" and "renice" commands to change priorities.  The "nice"
command is used to set the priority before you start
> > the program and the "renice" command is used to set priority of an already
running program.  So you can start
> > "speech-dispatcher" and "speechd_up" with something like:
> >
> > # nice -n -5 speech-dispatcher
> > # nice -n 5 speechd_up
> >
> > Or, you can change the priority of speech-dispatcher and speechd_up after
they are running by doing:
> >
> > # renice -5 speech-dispatcher-process-id
> > # renice 5 speechd_up-process-id
> >
> > When you use renice, you must specify the process ID of the program you want
to modify.  The highest priority possible is
> > -20 and the lowest priority is 19.  You can only increase the priority of a
program as root.  The default priority when
> > you log-in is 0.
> > As long as you set the priority of speechd_up lower than what your login is
using, it seems to work well.  You don't want
> > to make the priority too low, because then the speechd_up program will not
be able to get any CPU time.  So, 5 for
> > speechd_up seems to work well.  I increase the priority of speech-dispatcher
to -5 to make my speech slitely more
> > responsive.
> >
> > HTH
> >
> > DB
> >
> > On Wed, Mar 23, 2005 at 10:31:05AM -0500, Janina Sajka wrote:
> > > Where do you set these priorities?
> > >
> > > David Bruzos writes:
> > > > Hi all:
> > > > I had the same problem that some of you were discribing with the
software speech and speakup.  The speech was extremely
> > > > choppy and hard to understand.  Kirk said on another posting that the
problem was a kernel configuration option
> > > > called "Preempt The Big Kernel Lock".  This option is found in kernels
2.6.10 and 2.6.11.  I recompiled the kernel on my
> > > > desktop without this option and speech improved, but I did not want to
recompile on my laptop, so I started playing with
> > > > other things.
> > > > I fixed the problem by changing the priority of my "speechd_up" and of
"speech-dispatcher".  I am running "speechd_up" with
> > > > priority 5 and speech-dispatcher with priority -5 and it works
wonderfully.  I think my speech is more responsive than it
> > > > ever has been.
> > > > Of course I have no idea why the changed priority helps with this
problem, but it does.
> > > >
> > > > HTH
> > > >
> > > > David B.
> > > >
> > > > _______________________________________________
> > > > Speakup mailing list
> > > > Speakup at braille.uwo.ca
> > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup
> > >
> > > -- 
> > >
> > > Janina Sajka Phone: +1.202.494.7040
> > > Partner, Capital Accessibility LLC http://www.CapitalAccessibility.Com
> > >
> > > Chair, Accessibility Workgroup Free Standards Group (FSG)
> > > janina at freestandards.org http://a11y.org
> > >
> > > If Linux can't solve your computing problem, you need a different problem.
> > >
> > >
> > > _______________________________________________
> > > Speakup mailing list
> > > Speakup at braille.uwo.ca
> > > http://speech.braille.uwo.ca/mailman/listinfo/speakup
> >
> > _______________________________________________
> > Speakup mailing list
> > Speakup at braille.uwo.ca
> > http://speech.braille.uwo.ca/mailman/listinfo/speakup
>
> -- 
>
> Janina Sajka Phone: +1.202.494.7040
> Partner, Capital Accessibility LLC http://www.CapitalAccessibility.Com
>
> Chair, Accessibility Workgroup Free Standards Group (FSG)
> janina at freestandards.org http://a11y.org
>
> If Linux can't solve your computing problem, you need a different problem.
>
>
> _______________________________________________
> Speakup mailing list
> Speakup at braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup