Date: Tue, 31 May 2005 13:18:06 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: =?ISO-8859-1?Q?Tulio_Guimar=E3es_da_Silva?= <tuliogs@pgt.mpt.gov.br> Cc: freebsd-performance@FreeBSD.org Subject: Re: rmt as a bottleneck - Was: Weird behaviour of AIT-3 and (g)tar Message-ID: <20050531130852.U1452@epsplex.bde.org> In-Reply-To: <429B38C7.5040405@pgt.mpt.gov.br> References: <428CF20F.50607@pgt.mpt.gov.br> <428D0D79.7010506@rcn.com> <428DFF35.1000409@pgt.mpt.gov.br> <429B38C7.5040405@pgt.mpt.gov.br>
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> Observe that I bypassed rmt; that bumped the transfer rate to 10.976.153,96 > Bytes/s, almost 30x faster. Should this really happen? (And yes, I read > rmt(8), but found nothing about this. :( ). > Thanks for your help; ISTR that remote tars have a delay of 10 msec or so for each block because the protocol needs to talk after each block (it doesn't stream) and there is a TCP startup delay of this amount. Bruce
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