perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

Vicky;

> Hi jason :
> Thank you for your answer. I am work in client as follows:
> USER@HOST2:~$
>  bwctl -c HOST1
>
> bwctl: 25 seconds until test results available
>
> RECEIVER START
> bwctl: thrulay_server: streams=1,win_size=4194304
> bwctl: start_tool: 3434684143.053010
> 11/03/2008 14:55:43 thrulayd started, listening on port 5003 with window
> size 219136
> 11/03/2008 14:55:49 connection from ::ffff: HOST_IP
> bwctl: stop_exec: 3434684159.744133
> 11/03/2008 14:55:59 TCP test duration = 10.015s, average throughput =
> 94.078Mb/s, CPU user/sys time = 0.077/0.565s
>
>
> RECEIVER END
>
>
>
> Why the message didn't show " bwctl: Using tool: iperf" as you shown? Is my
> message is right?  What's the the tool use of bwctl ?


I used an older version of BWCTL (pre 1.3) for testing.  The older 
versions only used iperf as a tool, and did not support the -T option. 
By default thurlay is the testing tool on the new versions (what ran 
above).  Here is the same test using a newer BWCTL and choosing the 
iperf tool:

Server:

[zurawski@HOST1
 ~]$ /usr/local/bin/bwctld -Zc /usr/local/etc
bwctld[2065]: FILE=nuttcp.c, LINE=175, NuttcpAvailable(): We were unable 
to verify that nuttcp is working. Likely you do not have it installed. 
exit status: 1: output: exec(nuttcp): No such file or directory
bwctld[2065]: FILE=tools.c, LINE=255, Couldn't initialize tool "nuttcp". 
Disabling it.

Client using '-s' option:

[zurawski@HOST2
 ~]$ /usr/local/bin/bwctl -T iperf -s HOST1
bwctl: Unable to contact a local bwctld: Spawning local tool controller
bwctl: NuttcpAvailable(): We were unable to verify that nuttcp is 
working. Likely you do not have it installed. exit status: 1: output: 
exec(nuttcp): No such file or directory
bwctl: Couldn't initialize tool "nuttcp". Disabling it.
bwctl: 27 seconds until test results available

RECEIVER START
bwctl: exec_line: iperf -B HOST2 -s -f b -m -p 5001 -t 10
bwctl: start_tool: 3434696767.528693
------------------------------------------------------------
Server listening on TCP port 5001
Binding to local address HOST2
TCP window size: 87380 Byte (default)
------------------------------------------------------------
[ 12] local HOST2 port 5001 connected with HOST1 port 5001
[ ID] Interval       Transfer     Bandwidth
[ 12]  0.0-10.3 sec  58572800 Bytes  45358700 bits/sec
[ 12] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
bwctl: stop_exec: 3434696787.817773


Client using '-c' option:

[zurawski@HOST2
 ~]$ /usr/local/bin/bwctl -T iperf -c HOST1
bwctl: Unable to contact a local bwctld: Spawning local tool controller
bwctl: NuttcpAvailable(): We were unable to verify that nuttcp is 
working. Likely you do not have it installed. exit status: 1: output: 
exec(nuttcp): No such file or directory
bwctl: Couldn't initialize tool "nuttcp". Disabling it.
bwctl: 28 seconds until test results available

RECEIVER START
bwctl: exec_line: iperf -B HOST1 -s -f b -m -p 5003 -t 10
bwctl: start_tool: 3434696986.455201
------------------------------------------------------------
Server listening on TCP port 5003
Binding to local address HOST1
TCP window size: 87380 Byte (default)
------------------------------------------------------------
[ 15] local HOST1 port 5003 connected with HOST2 port 5003
[ 15]  0.0-10.1 sec  56057856 Bytes  44403243 bits/sec
[ 15] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
bwctl: stop_exec: 3434697007.023277

RECEIVER END


-jason



> Thanks,
> Vicky
> -----Original Message-----
> From: Jason Zurawski [mailto:] 
> Sent: Friday, October 31, 2008 5:40 PM
> To: 
>
> Cc: 
> ;
>  
>
> Subject: Re: [perfsonar-user] perfSONAR-BUOY BWCTL problem
>
> Vicky;
>
>
> > Hi all:
> > I try to run the bwctl tool from the command line, I set the "bwctl -T
> iperf -s <server IP>" in client and set "bwctl -c" in server, but the client
> window shown the message "bwctl: 25 seconds until test results available
> > RECEIVER START
> > bwctl: Remote 'sender' never initiated handshake - canceling
> > RECEIVER END
> > "
> > What's the problem? How can I user bwctl's tool(iperf) to run in the
> command line ?
>
>
> Please read all of the instructions before proceeding, they describe the 
> proper steps to take:
>
> http://e2epi.internet2.edu/bwctl/#Build
>
> Note that 'bwctl' is the client program, and 'bwctld' is the server. 
> The server will be started as such (using the -Z option here to keep the 
> server open in the terminal and the bwctld.conf file is installed in 
> '/usr/local/etc'):
>
>
> USER@HOST1:~$
>  /usr/local/bin/bwctld -Zc /usr/local/etc
> bwctld[22356]: FILE=bwctld.c, LINE=1573, The data_dir option has been 
> depricated, ignoring...
> bwctld[22356]: FILE=nuttcp.c, LINE=175, NuttcpAvailable(): We were 
> unable to verify that nuttcp is working. Likely you do not have it 
> installed. exit status: 1: output: exec(nuttcp): No such file or directory
>
>
> And the client should work as such:
>
>
> USER@HOST2:~$
>  bwctl -c HOST1
> bwctl: Using tool: iperf
> bwctl: 22 seconds until test results available
>
> RECEIVER START
> bwctl: exec_line: iperf -B HOST1 -s -f b -m -p 5002 -t 10
> bwctl: start_tool: 3434434010.222274
> ------------------------------------------------------------
> Server listening on TCP port 5002
> Binding to local address HOST1
> TCP window size: 87380 Byte (default)
> ------------------------------------------------------------
> [ 15] local HOST1 port 5002 connected with HOST2 port 5002
> [ ID] Interval       Transfer     Bandwidth
> [ 15]  0.0-10.1 sec  59973632 Bytes  47345214 bits/sec
> [ 15] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
> bwctl: stop_exec: 3434434030.351189
>
>
> or
>
>
> USER@HOST2:~$
>  bwctl -s HOST1
> bwctl: Using tool: iperf
> bwctl: 29 seconds until test results available
>
> RECEIVER START
> bwctl: exec_line: /usr/local/bin/iperf -B HOST2 -s -f b -m -p 5001 -t 10
> bwctl: start_tool: 3434434168.196122
> ------------------------------------------------------------
> Server listening on TCP port 5001
> Binding to local address HOST2
> TCP window size: 87380 Byte (default)
> ------------------------------------------------------------
> [ 14] local HOST2 port 5001 connected with HOST1 port 5001
> [ 14]  0.0-10.1 sec  58490880 Bytes  46450766 bits/sec
> [ 14] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
> bwctl: stop_exec: 3434434188.695510
>
> RECEIVER END
>
>
> Thanks;
>
> -jason