Re: [gentoo-amd64] Bad performance on doom3 with alsa and oss

[Etienne Imguimbert]

I confirm, I don't have any snd-ioctl32 module in the module tree of my
current kernel. Althought, sound works with doom3 (32 bits app) but is very
noisy. I've installed alsa with emerge, not directly in the kernel...

I've searched in the alsa documentation, also in the kernel documentation.
Nothing found about that :-(
Has someone any information about this module?
Thank you in advance

Etienne


2006/1/20, Etienne Imguimbert <eimguimbert@×××××.com>:
>
> I have looked in /lib/modules/kernelXXX, I did not found any snd-ioctl32
> module...
> I have juste enabled tue sound support in the kernel (and no oss or alsa),
> and just emerged alsa-driver, alsa-lib. Where can I find this module?
>
> Regards,
> Etienne
>
>
> 2006/1/20, David Guerizec <david@××××××××.net>:
> >
> > Le Vendredi 20 Janvier 2006 09:36, Etienne Imguimbert a écrit:
> > > Dear all
> > >
> > > Here is the alsa section of the FAQ about Linux version of doom3:
> > >
> > http://zerowing.idsoftware.com/linux/doom/#head-8c36163f1dfc3a253ef72c0f821
> > >b0b0dd2fc17b1
> > >
> > > This FAQ says about amd64 system:
> > > "on amd64 systems you may need to get the snd-ioctl32 module loaded in
> > "
> > >
> > > What does it mean? I don't understand the meaning of this sentence
> > (excuse
> > > me but english is not my mother tongue). What is the snd-ioctl32
> > module ?
> >
> > modprobe snd-ioctl32
> >
> > CQFD!
> >
> > David
> >
> > > Thanks in advance,
> > > Best regards,
> > >
> > > Etienne
> > >
> > > 2006/1/16, Etienne Imguimbert < eimguimbert@×××××.com>:
> > > > Le Dimanche 15 Janvier 2006 05:48, Eric Augustus a écrit:
> > > > > On Fri, Jan 13, 2006 at 09:34:32AM +0100, Etienne Imguimbert
> > wrote:
> > > > > >    Dear gentoo amd64 users
> > > > > >
> > > > > >    I've installed doom3 via the emerge command, and I have
> > several
> > > > > >    problems of performance. I tried several configurations:
> > > > > >
> > > > > >    - when I switch to alsa in doom3, I get very noisy sounds (I
> > get
> > > > > >    several messages of rejected packets by alsa in the shell)
> > > > >
> > > > > You could try changing to the alsa PCM setting, "seta s_alsa_pcm"
> > to
> > > > > "surround51" or anything else besides "default" in your
> > DoomConfig.cfg.
> > > >
> > > > I
> > > >
> > > > > had issues with the default setting on my setup and switched. Now
> > I get
> > > > > pretty decent sound.
> > > > >
> > > > > >    - when I switch to oss, I get huge slowdowns in the game (I
> > think
> > > > > >    there is a problem with the OSS emulation by alsa)
> > > > > >
> > > > > >    - when playing timedemo demo1 in the doom3 prompt, I get a
> > good
> > > >
> > > > number
> > > >
> > > > > >    of fps (about 60), but this benchmark is played without
> > sound, so
> > > > > > I deduce that I have problem with sounds.
> > > > >
> > > > > The demo is not supposed to have sound.
> > > > >
> > > > >
> > > > > --
> > > > > Eric Augustus
> > > > > shrike@×××××××××.com
> > > > > -----------------
> > > > > For the sake of argument I'll ignore all your fighting words.
> > > > >              -- Larry Wall in < 199710221710.KAA24242@××××.org>
> > > >
> > > > Dear Eric,
> > > > I've modified the file DoomConfig.cfg as you indicate, and there is
> > no
> > > > sound
> > > > at all when I switch to alsa. The message I get is:
> > > >
> > > > ------------- Warnings ---------------
> > > > during DOOM 3 initialization...
> > > > WARNING: idPort::SendPacket: bad address type NA_BAD - ignored
> > > > WARNING: sound subsystem disabled
> > > >
> > > > 2 warnings
> > > >
> > > > When I specify seta s_alsa_pcm "default" in the config file, I get
> > very
> > > > noisy
> > > > sounds, and the messages in the shell are:
> > > > ....
> > > > idAudioHardwareALSA::Write: 4096 frames overflowed and dropped
> > > > snd_pcm_writei failed: Resource temporarily unavailable
> > > > snd_pcm_writei short write: 940 out of 1024
> > > > snd_pcm_writei short write: 1880 out of 2048
> > > > snd_pcm_writei short write: 940 out of 1024
> > > > idAudioHardwareALSA::Write: 4096 frames overflowed and dropped
> > > > snd_pcm_writei short write: 1880 out of 2048
> > > > snd_pcm_writei short write: 940 out of 1024
> > > > snd_pcm_writei short write: 940 out of 1024
> > > > snd_pcm_writei short write: 940 out of 1024
> > > > idAudioHardwareALSA::Write: 4096 frames overflowed and dropped
> > > > snd_pcm_writei failed: Resource temporarily unavailable
> > > > snd_pcm_writei short write: 940 out of 1024
> > > > ....
> > > >
> > > > I precise:
> > > > I've got arts running using alsa output, but I specify it to suspend
> > if
> > > > inactive during 30 secondes. I tested sounds in doom3 with and
> > without
> > > > arts
> > > > launched: it changes nothing.
> > > >
> > > > Also when running doom3, the cpu frequency is max ( 2.2 GHz), so I
> > don't
> > > > think
> > > > that my problem would come from bad configured cpuscaling...
> > > >
> > > > I don't know what to do to have good perfs with good sounds.
> > (Remember if
> > > > I
> > > > switch to oss backend, perfs are low and sounds are just
> > acceptable).
> > > >
> > > > Best regards,
> > > >
> > > > Etienne Imguimbert
> > > >
> > > >
> > > >
> > > > --
> > > > gentoo-amd64@g.o mailing list
> >
> > --
> > gentoo-amd64@g.o mailing list
> >
> >
>