Grid measurementsGrid measurements

Global Grid Forum• Areas:

• APME, ARCH, DATA, GRID SEC, ISP, P2P, SRM• Working / Research Groups

• GridFTP WG• Grid High-Performance Networking Research Group

(GHPN-RG)• Network Measurments Working Group (NM-WG)

NM-WG• Working Drafts, XML Schema...

GHPN-RG• Networking Issues, Use Cases• Path-oriented use case:

• HEP• Emergency Apps.

with Wireless Sensors

GHPN-RG• Knowledge-based use cases:

• collection and usage of network performance info

• Passively Monitored Data (like file-transfer usage)

• Administrative setup of Schedules of Measurements (network performance through triggered sessions)

• Service Optimization (user apps and middleware)

NetLogger• A Toolkit for Distributed System Performance

Tuning and Debugging

• Determine the source of performance problems with detailed end-to-end instrumentation

• timestamped event log• visualization

Sample NetLogger results