Changes between Version 9 and Version 10 of GEMINI/Tutorial/GEC21/GENI_Desktop_and_GEMINI_blipp/ExecuteExperiment


Ignore:
Timestamp:
10/22/14 09:15:04 (5 years ago)
Author:
mkeele@indiana.edu
Comment:

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  • GEMINI/Tutorial/GEC21/GENI_Desktop_and_GEMINI_blipp/ExecuteExperiment

    v9 v10  
    6969Specify the file on the given node where you are collecting !NetLogger log messages.  BLiPP will then check the file for new messages on the specified interval and report the collected values to the measurement store.
    7070
    71 The event type(s) for !NetLogger probes depend on what is found in the log messages.  Since they are defined by the programmer, BLiPP does not know about them until it begins parsing the log file.  Once data is available, BLiPP will update the measurement information and display the event types in the drop down next to the scheduled test.  Give it a few minutes and then refresh the page.  Once the event types appear, you can select 'Graph' and display a graph of the collected measurements from the log file.  The following exercise will ask you to use !NetLogger on your experiment node and collect the measurement data with BLiPP.
     71The event type(s) for !NetLogger probes depend on what is found in the log messages.  Since they are defined by the programmer, BLiPP does not know about them until it begins parsing the log file.  Once data is available, BLiPP will update the measurement information and display the event types in the drop down next to the scheduled test.  Give it a few minutes. Once the event types appear, you can select 'View Data' and display a graph of the collected measurements from the log file.  The following exercise will ask you to use !NetLogger on your experiment node and collect the measurement data with BLiPP.
    7272
    7373[[Image(wiki:GEMINI/Tutorial/Images:netlogger_random.png)]]
     
    100100
    101101
    102  a. '''Task 1:''' Upload the !NetLogger application/script to one of your experiment nodes.
     102 a. '''Task 1:''' Upload the !NetLogger application/script to one of your experiment nodes. For example: ssh mkeele@pc2.geni.kettering.edu -p 31550 (VM-3)
    103103 a. '''Task 2:''' Execute the application on the node.  For example:
    104104{{{
    105 ./netlogger_test.py > /tmp/my_random
     105sudo python ./netlogger_test.py > /tmp/my_random
    106106}}}
    107107 a. '''Task 3:''' Configure a !NetLogger probe to read the log file and graph the measurements.
     
    157157 *   - 'g': the ratio of the duration(ns)/value (prefix=g for gap)                                                                                   
    158158 *   - 'r': the ratio of the value/duration(ns) (prefix=r for rate)       
    159