Hi Bill,
Bill Davidsen wrote:
> > When I tried to add a Matshita CW7503 to the set I got "errors flushing
> > the cache"
> > (Now I'm sure that sg of Linux is very poor, about it's max transfer
> > rate).
>
> This may be related to the buffer size you chose for the processes. If
> you can make this happen in -dummy mode you might try smaller buffers
> and see if there is any change.
I already have tried that, and also happens :-(
> Another thing which may be of interest is doing this without the
> realtime priority. I assume you are not doing this on a loaded machine,
> so it probably doesn't make much diference, and there may be some
> oddities in behaviour.
Humm, i don't have tried to give normal priority to the process... the
machine
was full dedicated to recording (without any X session running and
only necessary services loaded (syslog, klogd, and all others was
killed).
> > - The kernel 2.4 had a better sg driver, the transfer rate increased to
> > 4.700/4.800
> > Kb/s but isn't that I was hopping... the SCSI card was a Adaptec AIC
> > 19160
> > and the sg transfer rate was a lot down of the allowed by the card.
>
> I sure hope you mean 4.8 MB and not Kb, I get ~1.5MB on a single 12x
> recorder using IDE!
That's my mistaken! Was MB really :-)
---------------------------
Gleydson Mazioli da Silva
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