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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