perfSONAR User Q&A and Other Discussion

["Niederberger, Ralph" <>]

Dear all,

can someone point me to a document which describes which output value is
related to which database field within the perfsonar_iperf table of the
SQL_MA and how those values should be stored within the measurement archive
(e.g see timeDuration below). 

So e.g. I get:

localhost:~> bwctl -s 'sendhost' -c 'recvhost'
bwctl: Using tool: iperf
bwctl: 16 seconds until test results available

RECEIVER START
bwctl: exec_line: /usr/local/bin/iperf -B 'recvhost' -s -f b -m -p 5001 -t
10
bwctl: start_tool: 3480676446.310642
------------------------------------------------------------
Server listening on TCP port 5001
Binding to local address 'recvhost'
TCP window size: 87380 Byte (default)
------------------------------------------------------------
[ 15] local 'recvhost' port 5001 connected with 'sendhost' port 5001
[ ID] Interval       Transfer     Bandwidth
[ 15]  0.0-10.0 sec  1164115968 Bytes  929815948 bits/sec
[ 15] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
bwctl: stop_exec: 3480676460.822379

RECEIVER END


Perfsonar_iperf will have:

Field               Possible_Value
========================================

metadataId        = e.g. ID-sendhost-recvhost   
value               = ???       which value ???
valueUnits        = ??? bits/sec from Bandwidth ???     
throughput        = 929815948   
jitter            = ??? Where do I get this from ???    
loss              = ??? Where do I get this from ???    
numBytes          = 1164115968 
                    (from Transfer)
numBytesUnits     = Bytes 
                    (from Transfer)       
interv            = 0.0-10.0 sec
                    (from Interval)     
time              = ??? I assume, time when measurement took place ???  
format            = ??? -f b ??? from exec-Line call ???        
protocol          = TCP 
                    (from line " Server listening on TCP port 5001")    
bufferLength      = ??? 1448 or 1500 ??? with our without "bytes" text
appended 
                    (from line "[ 15] MSS size 1448 bytes (MTU 1500 bytes,
Ethernet")      
windowSize        = 87380       
windowSizeRequest       = ??? "default" ??? 
                    ??? 2560000 coming from a line "(WARNING: requested
2560000 Byte)" 
                        after having specified "-w 2500K" and getting only
2622142 Bytes ???       
timeDuration    = ??? -t 10 ??? 10 ??? 10 sec ??? ...   
                    (from bwctl: exec_line ...)
Arguments         = ??? "-B 'recvhost' -s -f b -m -p 5001 -t 10" ???
                    (from bwctl: exec_line ...) 
Test_session_id   = ???
Ts                = ??? "2010-04-16 09:42:01" as used in other tables or
unix timestamp or ... ???



Best regards

Ralph Niederberger

***************************************************
 Ralph Niederberger
 Juelich Supercomputing Centre
 Institute for Advanced Simulation

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 Fax:    +49 2461 61-6656
 E-Mail: 

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 JSC is the coordinator of the
 John von Neumann Institute for Computing
 and member of the
 Gauss Centre for Supercomputing
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