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Performance Working Group

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Minutes from Face-to-Face Meeting at

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2011 Spring Member Meeting, 20-April-2011

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AGENDA:

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Internet2 Update - Jeff Boote

Jeff Boote explained that Carla Hunt and Chris Hawkinson, co-chairs, were unable to attend this WG meeting.

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- Internet2 staff members have been involved in recent months with projects relating to NSF grants:
- -  IRIS  (International Research Instrumentation System)
- -  DyGIR  (Dynamic Gateway for International Research)
- -  DYNES (Development of Dynamic Network Systems)
- Some of the work involves supporting OSCARS (On-Demand Secure Circuits and Advance Reservation System), IDC deployments and perfSONAR deployments in support of those grants
- Largest development effort is getting circuit monitoring integrated with Dynamic Circuit provisioning, to be described by Aaron Brown later in this session
- Ongoing perfSONAR work involves understanding specific needs of IRNC (International Research Network Connections) participants

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Q: Do you look at the visualization when there is problem with the file system performance, or when there is a new wide area link or all the time for quality control?
A: Can capture and visualize data all he time, though we can't link to application in every case.  Generally, we run the visualization once when we branch to new location.

Q: For the data capacitor, what network data characteristics are best : low latency? same performance in both directions?  
A: Best is when there is symmetric routing, same path back and forth, otherwise it can be necessary to debug on 2 networks. Also, obviously, the lower the latency the better. Performance is important, but we also stress the convenience aspect. Uses TCP for network connection

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