Changes between Version 67 and Version 68 of GeniTmixCalibTutorial


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Timestamp:
06/21/14 15:13:45 (7 years ago)
Author:
Ben Newton
Comment:

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  • GeniTmixCalibTutorial

    v67 v68  
    4242A set of connection vectors is described by with a pair of tcvec files (labeled cinit.tcvec and crecv.tcvec).  These two files correspond to connections that are initiated on either side of the link on which the traffic data was originally captured.  Since all of the traffic crossing a busy link cannot generally be replayed using a single pair of nodes, it is customary to split the connection vectors into N pairs of tcvec files.  Most of the files displayed in the listing are named 1ofN.crecv.tcvec.  This is a single pair of connection vector files obtained by evenly splitting the original set of connection vectors into N parts.  For example, running tmix with the pair of files, 1of10.crecv.tcvec and 1of10.cinit.tcvec, will replay about 1/10th the traffic originally recorded on the link.  Below we will perform a set of experiments in which we iterate to find the point at which our pair of nodes can no longer work fast enough to simulate all the network traffic.   
    4343
    44 == C Run Tmix  Script and view data files ==
     44== D Run Tmix  Script and view data files ==
    45451. Make a new directory for this experiment, change to it, and copy tmix.conf there by typing:
    4646{{{
     
    100100}}}
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    102 == D Iterate ==
    103 [[Image(calibration.png, 550, nolink, right)]] '''Repeat steps 1 through 10 of section C''' for various input files (i.e. 1of02.cinit.tcvec), and plot the resulting bytes transferred.  You should reach a point where the linear growth stops.  The graph below is the resulting graph from calibrating two GENI nodes.  At least 3 pairs of nodes would be needed to reliably replay data on these nodes. You can use the following table to record your results.     
     102== E Iterate ==
     103[[Image(calibration.png, 550, nolink, right)]] '''Repeat steps 1 through 10 of section D''' for various input files (i.e. 1of02.cinit.tcvec), and plot the resulting bytes transferred.  You should reach a point where the linear growth stops.  The graph below is the resulting graph from calibrating two GENI nodes.  At least 3 pairs of nodes would be needed to reliably replay data on these nodes. You can use the following table to record your results.     
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