perfSONAR User Q&A and Other Discussion

[Brian Candler <>]

On 05/12/2014 13:08, Aaron Brown wrote:
> Could you try running with the “-v” and “-x” flags?
Sure. (One of the servers has gone, but I have installed another 
identical one I'm testing with now)

With -s and debug flags:

$ bwctl -v -x -s cov-perf-1 -T iperf3
Messages being sent to syslog(user,err)
bwctl: Using cov-perf-1 as the address for remote sender
bwctl: Using 192.0.2.251 as the address for local receiver
bwctl: Available in-common: iperf nuttcp iperf3
bwctl: Using tool: iperf3
bwctl: Server 'localhost' accepted test request at time 1417785481.493489
bwctl: Client 'cov-perf-1' accepted test request at time 1417785481.493489
bwctl: 25 seconds until test results available

RECEIVER START
bwctl: start_endpoint: 3626774266.714329
bwctl: run_endpoint: receiver: 192.0.2.251
bwctl: run_endpoint: sender: 192.0.2.254
bwctl: run_tool: tester: iperf3
bwctl: run_tool: receiver: 192.0.2.251
bwctl: run_tool: sender: 192.0.2.254
bwctl: start_tool: 3626774274.603032
iperf 3.0.9
Linux bou-perf-1.network.example.com 
2.6.32-504.1.3.el6.aufs.web100.x86_64 #1 SMP Wed Nov 12 16:01:48 UTC 
2014 x86_64 x86_64 x86_64 GNU/Linux
iperf3: interrupt - the server has terminated
-----------------------------------------------------------
Server listening on 5899
-----------------------------------------------------------
bwctl: stop_tool: 3626774288.508523
bwctl: stop_endpoint: 3626774288.509247

RECEIVER END

SENDER START
bwctl: start_endpoint: 3626774266.705522
bwctl: run_endpoint: receiver: 192.0.2.251
bwctl: run_endpoint: sender: 192.0.2.254
bwctl: run_tool: tester: iperf3
bwctl: run_tool: receiver: 192.0.2.251
bwctl: run_tool: sender: 192.0.2.254
bwctl: start_tool: 3626774281.467375
iperf 3.0.9
Linux cov-perf-1.network.example.com 
2.6.32-504.1.3.el6.aufs.web100.x86_64 #1 SMP Wed Nov 12 16:01:48 UTC 
2014 x86_64 x86_64 x86_64 GNU/Linux
bwctl: stop_tool: 3626774281.472350
bwctl: stop_endpoint: 3626774288.473556

SENDER END


Oddly I see no results there. If I repeat without the debug flags:

$ bwctl -s cov-perf-1 -T iperf3
bwctl: Using tool: iperf3
bwctl: 17 seconds until test results available

SENDER START
Connecting to host 192.0.2.251, port 5001
[ 16] local 192.0.2.254 port 50977 connected to 192.0.2.251 port 5001
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[ 16]   0.00-1.00   sec   705 MBytes  5.91 Gbits/sec    0    518 KBytes
[ 16]   1.00-2.00   sec   691 MBytes  5.81 Gbits/sec    0    546 KBytes
[ 16]   2.00-3.00   sec   786 MBytes  6.59 Gbits/sec    0    595 KBytes
[ 16]   3.00-4.00   sec   826 MBytes  6.93 Gbits/sec    0    631 KBytes
[ 16]   4.00-5.00   sec   831 MBytes  6.97 Gbits/sec    0    680 KBytes
[ 16]   5.00-6.00   sec   832 MBytes  6.98 Gbits/sec    0    725 KBytes
[ 16]   6.00-7.00   sec   831 MBytes  6.97 Gbits/sec    0    752 KBytes
[ 16]   7.00-8.00   sec   831 MBytes  6.97 Gbits/sec    0    789 KBytes
[ 16]   8.00-9.00   sec   831 MBytes  6.97 Gbits/sec    0    819 KBytes
[ 16]   9.00-10.00  sec  1.01 GBytes  8.69 Gbits/sec    0    851 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[ 16]   0.00-10.00  sec  8.01 GBytes  6.88 Gbits/sec 0             sender
[ 16]   0.00-10.00  sec  8.00 GBytes  6.87 Gbits/sec                  
receiver

iperf Done.

SENDER END


With -c and debug flags:

$ bwctl -v -x -c cov-perf-1 -T iperf3
Messages being sent to syslog(user,err)
bwctl: Using 192.0.2.251 as the address for local sender
bwctl: Using cov-perf-1 as the address for remote receiver
bwctl: Available in-common: iperf nuttcp iperf3
bwctl: Using tool: iperf3
bwctl: Server 'cov-perf-1' accepted test request at time 1417785422.386463
bwctl: Client 'localhost' accepted test request at time 1417785422.386463
bwctl: 25 seconds until test results available

RECEIVER START
bwctl: start_endpoint: 3626774207.819794
bwctl: run_endpoint: receiver: 192.0.2.254
bwctl: run_endpoint: sender: 192.0.2.251
bwctl: run_tool: tester: iperf3
bwctl: run_tool: receiver: 192.0.2.254
bwctl: run_tool: sender: 192.0.2.251
bwctl: start_tool: 3626774215.609283
iperf 3.0.9
Linux cov-perf-1.network.example.com 
2.6.32-504.1.3.el6.aufs.web100.x86_64 #1 SMP Wed Nov 12 16:01:48 UTC 
2014 x86_64 x86_64 x86_64 GNU/Linux
iperf3: interrupt - the server has terminated
-----------------------------------------------------------
Server listening on 5879
-----------------------------------------------------------
bwctl: stop_tool: 3626774229.382742
bwctl: stop_endpoint: 3626774229.383474

RECEIVER END

SENDER START
bwctl: start_endpoint: 3626774207.829650
bwctl: run_endpoint: receiver: 192.0.2.254
bwctl: run_endpoint: sender: 192.0.2.251
bwctl: run_tool: tester: iperf3
bwctl: run_tool: receiver: 192.0.2.254
bwctl: run_tool: sender: 192.0.2.251
bwctl: start_tool: 3626774222.386636
iperf 3.0.9
Linux bou-perf-1.network.example.com 
2.6.32-504.1.3.el6.aufs.web100.x86_64 #1 SMP Wed Nov 12 16:01:48 UTC 
2014 x86_64 x86_64 x86_64 GNU/Linux
bwctl: stop_tool: 3626774222.391758
bwctl: stop_endpoint: 3626774229.392938

SENDER END


Repeating with -c and without debug flags:

$ bwctl -c cov-perf-1 -T iperf3
bwctl: Using tool: iperf3
bwctl: 17 seconds until test results available

SENDER START

SENDER END

HTH,

Brian.