QUADIS

RTT baseline measurement

End-to-end RTT measurement:

INFN -> FNAL:

 ping -I 1 192.190.218.2
PING 192.190.218.2: 56 data bytes
[..]
146 packets transmitted, 146 packets received, 0% packet loss
round-trip (ms)  min/avg/max = 141/141/142

FNAL -> INFN:

 ping  192.168.190.11
PING 192.168.190.11 (192.168.190.11): 56 data bytes
[..]
----192.168.190.11 PING Statistics----
95 packets transmitted, 95 packets received, 0.0% packet loss
round-trip min/avg/max = 141.938/142.416/143.777 ms

FNAL -> INFN, flood mode:

 ping -f 192.168.190.11
PING 192.168.190.11 (192.168.190.11): 56 data bytes
.......................................

----192.168.190.11 PING Statistics----
6053 packets transmitted, 6028 packets received, 0.4% packet loss
round-trip min/avg/max = 141.320/141.559/155.767 ms
  100.0 packets/sec sent, 99.6 packets/sec received

UDP Performance, INFN -> FNAL:
- 200 pack/sec, 1000 by, long-term transmission:
  Throughput ATM layer: 1.878 Mbps
  Throughput IP layer: 1.656 Mbps
  Packet loss: 0%
- 210 pack/sec, 1000 by, long-term transmission:
  Throughput ATM layer: 1.957 Mbps
  Throughput IP layer: 1.738 Mbps
  Packet loss: 0%
UDP Performance, FNAL -> INFN:
- 180 pack/sec, 1000 by per pack
  Throughput ATM layer: 1.682 Mbps
  Throughput IP layer: 1.499 Mbps
  Packet loss: 0%
- 200 pack/sec, 1000 by per pack
  Throughput ATM layer: 1.883 Mbps
  Throughput IP layer: 1.679 Mbps
  Packet loss: 0%
- 210 pack/sec, 1000 by per pack
  Throughput ATM layer: 1.963 Mbps
  Throughput IP layer: 1.750 Mbps
  Packet loss: 0%

TCP performance, INFN -> FNAL:

1 TCP stream:

 netperf -H 192.190.218.2 -p 40000 -l 120 -- -s 240000,240000 -S240000,240000
TCP STREAM TEST to 192.190.218.2
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    10^6bits/sec  

240000 240000 240000    123.50      0.34

2 TCP streams: total rate 380 Kbps

 TCP STREAM TEST to 192.190.218.2
TCP STREAM TEST to 192.190.218.2
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    10^6bits/sec  

240000 240000 240000    125.17      0.17   
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    10^6bits/sec  

240000 240000 240000    127.21      0.21

8 TCP streams: total rate 500 Kbps
16 TCP streams: total rate 560 Kbps
32 TCP streams: total rate 586 Kbps

TCP performance, FNAL -> INFN:

1 TCP stream:

 netperf -H 192.168.190.12 -p 30000 -l 100 -- -s240000,240000 -S240000,240000
TCP STREAM TEST to 192.168.190.12
Recv   Send    Send                          
Socket Socket  Message  Elapsed              
Size   Size    Size     Time     Throughput  
bytes  bytes   bytes    secs.    10^6bits/sec  

240128 240000 240000    101.27      1.63

Last modified: Aug 29, 2000