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Date:      Mon, 9 Dec 1996 10:08:44 +0100 (MET)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-current@FreeBSD.org (FreeBSD-current users)
Cc:        croot@btp1da.phy.uni-bayreuth.de (Werner Griessl)
Subject:   Re: rdump slow
Message-ID:  <199612090908.KAA22223@uriah.heep.sax.de>
In-Reply-To: <199612090824.JAA27943@btp1da.phy.uni-bayreuth.de> from Werner Griessl at "Dec 9, 96 09:24:18 am"

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As Werner Griessl wrote:

> > >   DUMP: finished in 430 seconds, throughput 49 KBytes/sec
> > >                                             ^^^^^^^^^^^^^ !!!!!
> > 
> > I can't confirm this.  What's your blocksize?  What system is the
> > remote TCP peer?  Is the tape streaming?
> > 
> 
> Blocksize is the default (10), remote system is a DEC-alpha 3000/600,
> tape is a HP-DAT 35480 with local transfer-rate ~250 kb/sec .

Do you get the same slow througput when using rsh/dd for the tape?
What does GNUtar's ``-f remote:/dev/ice'' yield?  Does increasing the
blocksize e.g. to 32 improve anything?

Which throughput would you get to /dev/null on the remote machine?
Questions, questions, questions.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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