Date: Sun, 25 Jun 1995 14:15:51 -0400 From: Jim Leppek <jleppek@harris.com> To: freebsd-questions@freefall.cdrom.com Subject: tcpblast Message-ID: <199506251815.OAA00556@cyclops>
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I was running the following: tcpblast 127.0.0.1 <some blocks> and got some strange results would anyone care to explain them? this is on a DX4/100 16Meg, X is running with three idle xterms. the system is a 2.0.5R, only the test is active, no build worlds or anything :-) (the use of my hostname, localhost, or 127.0.0.1 makes no difference) these tests were run in a row, I just "up arrowed" and changed the number of blocks. The thruput varies greatly, is this normal? It seems like after I run tcpblast I need to wait 30-60 seconds to let things calm down, then the thruput climbs again!! the amount sent also seems to have an affect. the results: 8000 KB in 2878 msec = 22771369.0 kbit/s = 2846421.1 kByte/s = 2.8 MByte/s 8000 KB in 87269 msec = 750965.4 kbit/s = 93870.7 kByte/s = 0.1 MByte/s 7000 KB in 4117 msec = 13928588.8 kbit/s = 1741073.6 kByte/s = 1.7 MByte/s 7000 KB in 4001 msec = 14332416.9 kbit/s = 1791552.1 kByte/s = 1.7 MByte/s 7000 KB in 4247 msec = 13502236.9 kbit/s = 1687779.6 kByte/s = 1.6 MByte/s 9000 KB in 99839 msec = 738468.9 kbit/s = 92308.6 kByte/s = 0.1 MByte/s 9000 KB in 129939 msec = 567404.7 kbit/s = 70925.6 kByte/s = 0.1 MByte/s 6000 KB in 3552 msec = 13837837.8 kbit/s = 1729729.7 kByte/s = 1.7 MByte/s 6000 KB in 3414 msec = 14397188.0 kbit/s = 1799648.5 kByte/s = 1.8 MByte/s 6000 KB in 3474 msec = 14148532.0 kbit/s = 1768566.5 kByte/s = 1.7 MByte/s 7000 KB in 35832 msec = 1600357.2 kbit/s = 200044.7 kByte/s = 0.2 MByte/s <waited a minute> 7000 KB in 3912 msec = 14658486.7 kbit/s = 1832310.8 kByte/s = 1.8 MByte/s 7000 KB in 4050 msec = 14159012.3 kbit/s = 1769876.5 kByte/s = 1.7 MByte/s 8000 KB in 4739 msec = 13829077.9 kbit/s = 1728634.7 kByte/s = 1.7 MByte/s 8000 KB in 13560 msec = 4833038.3 kbit/s = 604129.8 kByte/s = 0.6 MByte/s <waited a minute> 8000 KB in 4603 msec = 14237671.1 kbit/s = 1779708.9 kByte/s = 1.7 MByte/s 8000 KB in 4827 msec = 13576962.9 kbit/s = 1697120.4 kByte/s = 1.7 MByte/s 8000 KB in 112808 msec = 580951.7 kbit/s = 72619.0 kByte/s = 0.1 MByte/s <waited a minute> 8000 KB in 5044 msec = 12992862.8 kbit/s = 1624107.9 kByte/s = 1.6 MByte/s 8000 KB in 92055 msec = 711922.2 kbit/s = 88990.3 kByte/s = 0.1 MByte/s Thanks for any insight Jim
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