Date: Mon, 23 May 2005 14:47:06 +0200 From: cpghost <cpghost@cordula.ws> To: yongari@rndsoft.co.kr Cc: Current <freebsd-current@freebsd.org>, Julian Elischer <julian@elischer.org> Subject: Re: skype on current/5.x and maestro-2E sound Message-ID: <4291D0CA.9090706@cordula.ws> In-Reply-To: <20050516022100.GB1020@rndsoft.co.kr> References: <4286AB34.6050101@elischer.org> <20050515093422.GA18361@fw.farid-hajji.net> <42871944.4030506@elischer.org> <20050516022100.GB1020@rndsoft.co.kr>
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Pyun YongHyeon wrote:
>On Sun, May 15, 2005 at 02:41:24AM -0700, Julian Elischer wrote:
> > cpghost@cordula.ws wrote:
> > >On Sat, May 14, 2005 at 06:51:48PM -0700, Julian Elischer wrote:
> > >
> > >>Has anyone run skype successfully on these versions (5 or 6) of freeBSD?
> > >>I can run it successfully on 4.x but on my 5.x machine the audio is
> > >>completely
> > >>broken up. like someone is chopping the audio stream.
> > >
> > >
> > >I'm running Skype on 5.4 (via82c686). On an AMD Duron 1200 MHz, the
> > >sound quality is all right; on an EPIA 5000 Eden 500 MHz (also via82c686),
> > >the sound is totally chopped and it is impossible to follow.
> >
> > hmm so maybe its the fact that my machine is too slow.. it's also 500MHz
> > my 1GHz 4.11 machine seems to run it fine.
> >
>
>I don't think 500MHz is too slow. Check if kernel converters
>are active when you play audio samples.(cat /dev/sndstat after
>setting hw.snd.verbose=2).
>
>
This is what I get while skype plays the chopped sound of the echo service:
epia2# cat /dev/sndstat
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <VIA VT82C686A> at io 0xdc00 irq 10 kld snd_via82c686 (1p/1r/0v
channels duplex default)
[pcm0:play:0]: spd 48000, fmt 0x00000010, flags 0x00003030,
0x00000000, pid 78793
interrupts 18062, underruns 4824, ready 3580
{userland} -> feeder_root(0x00000010) -> {hardware}
[pcm0:record:0]: spd 48000, fmt 0x00000010, flags 0x00003030,
0x00000000, pid 78793
interrupts 16968, overruns 4808, hfree 512, sfree 3584
{hardware} -> feeder_root(0x00000010) -> {userland}
No idea how to interpret this.
>Since the driver also needs Giant lock it may suffer from interrupt
>latencies with other devices. In addition if it share IRQ with
>other devices(e.g. USB) the issue would be noticable.
>
>
None that I know of:
epia2# vmstat -i
interrupt total rate
irq0: clk 30624081 99
irq1: atkbd0 416592 1
irq8: rtc 39199914 128
irq10: pcm0 1210380 3
irq11: vr0 531082 1
irq12: psm0 1354640 4
irq13: npx0 1 0
irq14: ata0 3681643 12
Total 77018333 251
irc10 is not shared by any other likely interrupt source, or so it seems.
Regards,
-cpghost.
--
Cordula's Web. http://www.cordula.ws/
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