'''[wiki:WiMAX/WiMAX-Tutorial/Dash/05 Previous]'' == Run the experiment == Ready to run the experiment? First turn the nodes on, since they'll still be off after being imaged: {{{ omf tell -a on -t node1-3.outdoor.orbit-lab.org,node1-5.outdoor.orbit-lab.org }}} [[br]] Then run: {{{ omf exec -C omf-expctl.yaml wmxtutor-dash.rb }}} [[br]] Make a note of your experiment ID, which is printed on the console like this: {{{ INFO NodeHandler: Experiment ID: default_slice-2013-07-17t19.19.57.782-04.00 }}} [[br]] Once the experiment has concluded, use its Experiment ID push the results to a "dash" directory in iRODS using this ID: {{{ iarchive -e expID -c dash }}} (replace '''expID''' with your actual Experiment ID as printed on the console) [[br]] To view your experiment results, visit the iRODS web browser at [http://witestlab.poly.edu/irods/web]. Use: * '''Host''': emmy9.casa.umass.edu * '''Port''': 1247 * '''Zone''': geniRenci and the same username and password you used to log into the OMF console. [[br]] Click on the '''expID'''.sq3 file in the ''dash'' directory and click 'Plot' to create simple plots of measurements stored by OML. Try plotting the 'vlc_dashRateAdaptation' table with 'oml_seq' on the x-axis and 'chosenRate_bps' on the y-axis to see the video rate of each DASH segment. Or try plotting 'oml_seq' on the x-axis and 'buffer_percent' on the y-axis to check for freezes in video playback, which are signified by a zero value for 'buffer_percent.' A description of some sample results is given on the [wiki:WiMAX/WiMAX-Tutorial/Dash/08 last page] of this tutorial. You can also download this file and explore the data using an SQLite browser such as [https://addons.mozilla.org/en-US/firefox/addon/sqlite-manager/ this Firefox plugin]. '''[wiki:WiMAX/WiMAX-Tutorial/Dash/07 Next]''