Linux-kernel mailing list archive 1999-32,: Re: hdd & sound

# Re: hdd & sound

Vladimir Dergachev (vdergach@sas.upenn.edu)
Mon, 9 Aug 1999 12:41:13 -0400 (EDT)

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I had the same problem. It seems to cure if you set your sound playing
application to higher priority than everything else.

My system:
AMD K5-PR90 48Meg RAM
If I set kmp3 to nice value -5 I can safely compile stuff which sometimes
involves using swap (c++).

I decided that a good rule of thumb in this situation is _NOT_:

The processes at the same priority level N are equally likely to _receive_
the same share of processing time.

Rather:

The processes at the same priority level N are equally likely to have
their processing time _taken_ from them.

Vladimir Dergachev

On Sun, 8 Aug 1999, Jonathan Masters wrote:

> OK. My point was, we're having the same problem, but our hw is different! OK, it
> *might*be the hw, but should we not consider that there might be something fscked up in
> the kernel?
>
> Jon.
>
> Wakko Warner wrote:
>
> > > I disagree. I doubt it's hardware, more likely something is fucked up in the
> >
> > I definately don't.. This box used to be my primary machine. When I had a
> > generic ne2000 card in the box, network traffic would cause the sound to do
> > this exact same thing. I believe it even happened when I put a 3com card in
> > the box (pci) and the bios shared the 3com with the usb. The problem was
> > with the ne2000, the usb controller used irq10 as well as the nic.
> >
> > > kernel causing heavy disk usage to fuck with sound. BEAR IN MIND: this happens
> > > whenever I write a CD/copy large volumes of data whilst playing wavs/raw/mp3, with
> > > esd on OR OFF (so it aint esd) - and no heavy CPU usage (typically load is under
> > > 20% CPU usage).
> > >
> > > periscope:
> > > PII 400
> > > 128Mb RAM
> >
> > The 2nd box:
> > pentium 233mmx o/c to 262mhz
> > 64mb ram (256mb max), 20mb swap (hda).
> > hda = wdc420
> > b = seagate 210 (ripping it out next downtime I have)
> > c = wdc1600
> > d = none
> > IDE controller is onboard, piix4.
> > mainboard Tyan s1571s titan at-2
> > video is diamond stealth 3d 2000 4mb using s3virge chipset. Irq not
> > assigned
> > USB is enabled (can't disable)
> > 3com 10/100 3c905A
> > SB16 pnp. I think it's a value, has an ide port, not disabled, can't
> > disable.
> > adaptec aha1510 (I believe this is it, using aha152x driver) on irq11.
> > sda and sdb = hp 1gb.
> > 1 floppy drive (3.5")
> > Kernel 2.2.7. I'm not using isapnptools, the bios setup the sound card
> > exactly the way the ess card I used to have was (which was also via pnp)
> >
> > > > > I reported a very similar problem a while back, but since no-one listens to
> > > > > little old me, what's the point in me telling you my problem again :(
> > > >
> > > > I think it's more hardware than anything. Either that or an irq conflict
> > > > between pci and isa.
> > > >
> > > > > > I'm noticing this one one of my machines. When writing to a hard drive, the
> > > > > > sound drags. The machine I'm on has piix4 ide and an isa scsi card. I'm
> > > > > > playing sounds from the drive on the scsi card (aha1510 I think is the scsi
> > > > > > card). I tried writing to both an ide and scsi drive, both drag the sound.
> > > > > > Sound card is an SB16 pnp /w ide port (not disablable unfortunately). I had
> > > > > > a similar problem on an isa ide card playing sounds off of the hard drive
> > > > > > (like 44k 16bit 2ch sound off the drive, sound card was an ess card). My
> > > > > > home box that this is happneing on is 2.2.7. The one with the isa ide is no
> > > > > > longer active, but it was running 2.0.36.
> > > > > >
> > > > > > --
> > > > > > Lab tests show that use of micro$oft causes cancer in lab animals
> > > > > >
> > > > > > -
> > > > > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > > > > > the body of a message to majordomo@vger.rutgers.edu
> > > > > > Please read the FAQ at http://www.tux.org/lkml/
> > > > >
> > > > > --
> > > > > Jonathan C. Masters (jonathan@oxlug.org)
> > > > > PGP: www.brookes.ac.uk/~95227860/KEY
> > > > >
> > > > > "Upon this rock I will build my church,
> > > > > and the gates of hell shall not prevail against it".
> > > > >
> > > > > -- Matthew 16, 17-18
> > > > >
> > > > >
> > > > >
> > > > --
> > > > Lab tests show that use of micro$oft causes cancer in lab animals
> > >
> > > --
> > > Jonathan C. Masters (jonathan@oxlug.org)
> > > PGP: www.brookes.ac.uk/~95227860/KEY
> > >
> > > "Upon this rock I will build my church,
> > > and the gates of hell shall not prevail against it".
> > >
> > > -- Matthew 16, 17-18
> > >
> > >
> > >
> > --
> > Lab tests show that use of micro$oft causes cancer in lab animals
>
> --
> Jonathan C. Masters (jonathan@oxlug.org)
> PGP: www.brookes.ac.uk/~95227860/KEY
>
> "Upon this rock I will build my church,
> and the gates of hell shall not prevail against it".
>
> -- Matthew 16, 17-18
>
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
>

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