Thanks Szemir... I suspect the problem probably is the DMA issue.  I've been
ignoring it for a little while - I don't want to rebuild my kernel just yet
as I'm trying to stabilize some other stuff.  Guess I'll have to do this
soon though.  On the otherhand, I'm only using the cdrecord routines for
backup, which runs at 2 in the morning, so I don't normally see the
permformance hit.

Thanks again for the tips.

Shawn

-----Original Message-----
From: Bogi [mailto:[EMAIL PROTECTED]
Sent: Saturday, October 04, 2003 1:15 AM
To: [EMAIL PROTECTED]
Subject: Re: (clug-talk) Installfest Details / Multiple burners


Hi Shawn.
That could be a significant part of the slowdown problem, also check DMA
settings in the Bios, and the kernel ... you never know what the defaults
are. also check that the burner is in it's own io card alone, and it is set
to master, if there are any hdd connected to the same cable, remove it for
the testing.
{Hewlett-Packard 8100i SureStore CD-Writer Plus}
cdrecord should run between  .01  and 0.1 load on your system.
dd could end up being a larger load due to the large amout of fast io it
does, so yes dd fist, put iso down then burm. I do it on my server with 50
people logged in :-) ok, that one is a dual 1.8Ghz with a gig of ram :-)
Cheers
Szemir


On Friday 03 October 2003 14:37, you wrote:
> I'm using a Gentoo server from the CLI.  The moment I run cdrecord, I know
> my box is off limits until it's done writing the disk...
>
> On the other hand, I am using an old HP 8100i burner (a whopping 4x4x2),
so
> that might be the source of the problems....
>
> Shawn
>
> -----Original Message-----
> From: Graham Monk [mailto:[EMAIL PROTECTED]
> Sent: Friday, October 03, 2003 2:26 PM
> To: [EMAIL PROTECTED]
> Subject: Re: (clug-talk) Installfest Details / Multiple burners
>
>
> from what Szemir was saying on Wed night it can work, on the command line.
> What machine spec were you using? On my machine 400Mhz it does get slow
and
> hesitant but still works. i was going to dd iso copies to the Hard drive
>
> graham
>
> On Friday 03 October 2003 13:39, you wrote:
> > I don't think a machine like this would work properly.  When I'm running
> > cdrecord on my server, it grabs all available resources, and brings the
> > server to it's knees.  I can't even connect to a Samba share, or open a
>
> web
>
> > page from that server while the record process is running....  (of
> > course, this could simply be a result of the way I'm doing things - I
> > haven't looked into this issue yet, other than noting it is an issue).
> >
> > So, I don't think you'd be able to burn to multiple cd drives
> > simultaneously....
> >
> > On the other hand, Once you do the mkisofs step, you can then omit that
> > part of it, and just run the cdrecord process multiple times, using the
> > generated ISO file.
> >
> > Shawn
> >
> > -----Original Message-----
> > From: Graham Monk [mailto:[EMAIL PROTECTED]
> > Sent: Friday, October 03, 2003 12:16 PM
> > To: [EMAIL PROTECTED]
> > Subject: (clug-talk) Installfest Details
> >
> > I would like it if we can get several copies of the various distros to
>
> give
>
> > with the installed machines. i am going to buy a stack of discs to do
> > some concentrated burning and printing of SuSE. Does anybody want to
take
> > some and
> > do Mandrake,  RedHat etc?
> > Wednesdays presentation on CL cd burning gave me an idea, if Paul can
put
> > together a machine with 3 burners we can set up a burning station to
mass
> > produce the copies?

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