On Tue, Jul 09, 2002 at 01:49:50PM -0400, Andreas Wrede wrote:
> On Tue, 9 Jul 2002, Bang Jun-Young wrote:
> 
> > On Mon, Jul 08, 2002 at 11:02:41AM -0400, Andreas Wrede wrote:
> > > Does anyone have an idea what is holding things up here?
> >
> > Why don't you give it a try again with having `options PIPE_SOCKETPAIR'
> > enabled in your kernel config file?
> 
> No change, as reported earlier.
> 
> I worked around the problem by dumping the tape to a disk partition
> and used dd | gzip -d | restore, with expected performance. This seams
> to indicate some complex timing interdependencies bewteem scsi, pipe
> and TCP stack.
> 
> BTW, the tape drive involved is a Exabyte 8505 attached to a 53c875
> with the esiop driver.
> 
> Does anyone else have problems with amrecover performance in
> 1.6_BETA4/i386?

See kern/17421. I didn't go as far as you, I just though the socket was
completely hung.
I'm using a DLT drive connected to an adaptec SCSI adapter. So it doesn't
seem to be dependant on hardware.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
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