Experiment on October 8
KIND OF WEIRD????
The throughput return to full capacity when dublin runs kernel 2.4.10 with
Tulipdriver as module
I am before ash.cs.unh.edu
telnet to madrid, dublin, prague
remotely reboot these 3 machines to linux2410m
madrid, dublin, prague are running kernel 2.4.10 with tulip driver as module
| Experiment 2 on Kernel 2.4.10 ( Tulip driver is compiled as module ) | ||||||||||||||||
| 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | 11th | 12th | 13th | 14th | 15th | AVG | |
| Trans Speed (KB/sec) | 11527.19 | 11539.07 | 11535.83 | 11534.40 | 11534.84 | 11533.84 | 11393.33 | 11497.15 | 11494.48 | 11496.61 | 11495.84 | 11494.61 | 11494.73 | 11496.61 | 11495.83 | 11504.29 |
| Recv Speed (KB/sec) | 11481.28 | 11481.77 | 11481.04 | 11479.88 | 11479.88 | 11479.10 | 11386.38 | 11488.28 | 11488.07 | 11488.75 | 11488.72 | 11488.68 | 11488.65 | 11488.72 | 11488.69 | 11478.53 |
| Data Sent (Byte) | 16777216 | 16777216 | 16777216 | 16777216 | 16777216 | 16777216 | 16777216 | 124835840 | 124835840 | 124835840 | 124835840 | 124835840 | 124835840 | 124835840 | 124835840 | |
Compared to Oct7's data, the data above dispute the conclusion we drew yesterday
Is that funny??? I did not change any setting since yesterday except for a few system rebooting
For the detailed experiment data, please see the following
experiment 2
[lin@madrid lin]$ ttcp/ttcp -t -s 192.168.2.2 < nttcp-1.47.tar.gz
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 1.42 real seconds = 11527.19 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.71, calls/sec = 1440.90
ttcp-t: 0.0user 0.0sys 0:01real 6% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 16777216 bytes in 1.43 real seconds = 11481.28 KB/sec +++
ttcp-r: 11589 I/O calls, msec/call = 0.13, calls/sec = 8121.13
ttcp-r: 0.0user 0.2sys 0:01real 18% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
[lin@madrid lin]$ ttcp/ttcp -t -s 192.168.2.2 < nttcp-1.47.tar.gz
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 1.42 real seconds = 11539.07 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.71, calls/sec = 1442.38
ttcp-t: 0.0user 0.0sys 0:01real 3% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 16777216 bytes in 1.43 real seconds = 11481.77 KB/sec +++
ttcp-r: 11588 I/O calls, msec/call = 0.13, calls/sec = 8120.77
ttcp-r: 0.0user 0.2sys 0:01real 15% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is running on dublin:eth1 192.168.2.1
[lin@madrid lin]$ ttcp/ttcp -t -s 192.168.2.2 < nttcp-1.47.tar.gz
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 1.42 real seconds = 11535.83 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.71, calls/sec = 1441.98
ttcp-t: 0.0user 0.0sys 0:01real 2% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 16777216 bytes in 1.43 real seconds = 11481.04 KB/sec +++
ttcp-r: 11588 I/O calls, msec/call = 0.13, calls/sec = 8120.26
ttcp-r: 0.0user 0.2sys 0:01real 14% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is running on dublin:eth1 192.168.2.1
[lin@madrid lin]$ ttcp/ttcp -t -s 192.168.2.2 < nttcp-1.47.tar.gz
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 1.42 real seconds = 11534.40 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.71, calls/sec = 1441.80
ttcp-t: 0.0user 0.0sys 0:01real 3% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 16777216 bytes in 1.43 real seconds = 11479.88 KB/sec +++
ttcp-r: 11588 I/O calls, msec/call = 0.13, calls/sec = 8119.43
ttcp-r: 0.0user 0.1sys 0:01real 12% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is running on dublin:eth1 192.168.2.1
[lin@madrid lin]$ ttcp/ttcp -t -s 192.168.2.2 < nttcp-1.47.tar.gz
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 1.42 real seconds = 11534.84 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.71, calls/sec = 1441.85
ttcp-t: 0.0user 0.0sys 0:01real 1% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 16777216 bytes in 1.43 real seconds = 11479.88 KB/sec +++
ttcp-r: 11581 I/O calls, msec/call = 0.13, calls/sec = 8114.54
ttcp-r: 0.0user 0.1sys 0:01real 8% 0i+0d 0maxrss 0+2pf 0+0csw
Experiment 2
tcpdump is running on dublin:eth1 192.168.2.1
[lin@madrid lin]$ ttcp/ttcp -t -s 192.168.2.2 < nttcp-1.47.tar.gz
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 1.42 real seconds = 11533.84 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.71, calls/sec = 1441.73
ttcp-t: 0.0user 0.0sys 0:01real 2% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 16777216 bytes in 1.43 real seconds = 11479.10 KB/sec +++
ttcp-r: 11588 I/O calls, msec/call = 0.13, calls/sec = 8118.88
ttcp-r: 0.0user 0.1sys 0:01real 13% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is running on dublin:eth1 192.168.2.1
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.70 real seconds = 11393.33 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.72, calls/sec = 1424.19
ttcp-t: 0.0user 1.1sys 0:10real 11% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.71 real seconds = 11386.38 KB/sec +++
ttcp-r: 86376 I/O calls, msec/call = 0.13, calls/sec = 8067.51
ttcp-r: 0.0user 1.1sys 0:10real 11% 0i+0d 0maxrss 0+2pf 0+0csw
Experiment 2
tcpdump is running on dublin:eth1 192.168.2.1
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.60 real seconds = 11497.15 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1437.17
ttcp-t: 0.0user 0.7sys 0:10real 7% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.28 KB/sec +++
ttcp-r: 86212 I/O calls, msec/call = 0.13, calls/sec = 8124.25
ttcp-r: 0.0user 1.3sys 0:10real 13% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is running on dublin:eth1 192.168.2.1
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.61 real seconds = 11494.48 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1436.83
ttcp-t: 0.0user 0.7sys 0:10real 7% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.07 KB/sec +++
ttcp-r: 86213 I/O calls, msec/call = 0.13, calls/sec = 8124.20
ttcp-r: 0.1user 1.3sys 0:10real 13% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is NOT running
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.60 real seconds = 11496.61 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1437.10
ttcp-t: 0.0user 0.8sys 0:10real 8% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.75 KB/sec +++
ttcp-r: 86206 I/O calls, msec/call = 0.13, calls/sec = 8124.02
ttcp-r: 0.0user 1.3sys 0:10real 13% 0i+0d 0maxrss 0+2pf 0+0csw
Experiment 2
tcpdump is NOT running
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.60 real seconds = 11495.84 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1437.00
ttcp-t: 0.0user 0.8sys 0:10real 8% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.72 KB/sec +++
ttcp-r: 86213 I/O calls, msec/call = 0.13, calls/sec = 8124.66
ttcp-r: 0.0user 1.4sys 0:10real 14% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is NOT running
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.61 real seconds = 11494.61 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1436.85
ttcp-t: 0.0user 0.9sys 0:10real 8% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.68 KB/sec +++
ttcp-r: 86205 I/O calls, msec/call = 0.13, calls/sec = 8123.88
ttcp-r: 0.0user 1.1sys 0:10real 11% 0i+0d 0maxrss 0+2pf 0+0csw
Experiment 2
tcpdump is NOT running
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.61 real seconds = 11494.73 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1436.87
ttcp-t: 0.0user 0.9sys 0:10real 9% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.65 KB/sec +++
ttcp-r: 86206 I/O calls, msec/call = 0.13, calls/sec = 8123.95
ttcp-r: 0.0user 1.3sys 0:10real 13% 0i+0d 0maxrss 0+2pf 0+0csw
Experiment 2
tcpdump is NOT running
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.60 real seconds = 11496.61 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1437.10
ttcp-t: 0.0user 0.8sys 0:10real 8% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.72 KB/sec +++
ttcp-r: 86213 I/O calls, msec/call = 0.13, calls/sec = 8124.66
ttcp-r: 0.0user 1.2sys 0:10real 12% 0i+0d 0maxrss 0+1pf 0+0csw
Experiment 2
tcpdump is NOT running
USING large amount of traffic: 124MB
[lin@madrid lin]$ ttcp/ttcp -t 192.168.2.2 < linux-2.4.10.tar
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.2
ttcp-t: socket
ttcp-t: connect
ttcp-t: 124835840 bytes in 10.60 real seconds = 11495.83 KB/sec +++
ttcp-t: 15239 I/O calls, msec/call = 0.71, calls/sec = 1437.00
ttcp-t: 0.0user 0.9sys 0:10real 8% 0i+0d 0maxrss 0+2pf 0+0csw
[lin@prague ttcp]$ ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp
ttcp-r: socket
ttcp-r: accept from 192.168.1.2
ttcp-r: 124835840 bytes in 10.61 real seconds = 11488.69 KB/sec +++
ttcp-r: 86213 I/O calls, msec/call = 0.13, calls/sec = 8124.64
ttcp-r: 0.0user 1.3sys 0:10real 13% 0i+0d 0maxrss 0+1pf 0+0csw