Date: 04 Dec 1996 11:47:00 +0200 From: Kai Vorma <vode@snakemail.hut.fi> To: "David S. Miller" <davem@jenolan.rutgers.edu> Cc: hackers@freebsd.org Subject: Re: TCP/IP bandwidth bragging Message-ID: <mbou3q2bq0b.fsf@skye.hut.fi> In-Reply-To: "David S. Miller"'s message of 3 Dec 1996 06:28:37 %2B0200 References: <MLIST_199612030410.XAA18471@jenolan.caipgeneral>
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"David S. Miller" <davem@jenolan.rutgers.edu> writes: > ---------------------------------------------//// > Yow! 11.26 MB/s remote host TCP bandwidth & //// > 199 usec remote TCP latency over 100Mb/s //// > ethernet. Beat that! //// > -----------------------------------------////__________ o > David S. Miller, davem@caip.rutgers.edu /_____________/ / // /_/ >< Ok, how about this? --------------------------------------------------------------------------- cactus-18 - 11:36 - ~ > ttcp -s -t -l 65536 cactus-24-s ttcp-t: buflen=65536, nbuf=2048, align=16384/0, port=5001 tcp -> cactus-24-s ttcp-t: socket ttcp-t: connect ttcp-t: 134217728 bytes in 4.30 real seconds = 30468.04 KB/sec +++ ttcp-t: 2048 I/O calls, msec/call = 2.15, calls/sec = 476.06 ttcp-t: 0.1user 2.3sys 0:04real 58% 0i+9d 176maxrss 0+16pf 939+1022csw 0.120u 2.410s 0:04.32 58.5% 0+9k 0+0io 0pf+0w --------------------------------------------------------------------------- 30 MB/s remote host TCP bandwidth :-) The machine is dirty old IBM SP2 with wide nodes (similar to RS/6000 590 which appeared in 1993, I think) and HPS2 switch. Okay, the HPS2 switch is quite a different animal than ethernet, but you asked.. :-) ..vode
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