Concerto

At the Systems Software and Architecture Laboratory, Dr. David Yau is leading an effort to build Concerto, a unified end-to-end QoS architecture for general purpose network computing. Concerto extends network level reservation, signaling, resource discovery, naming and scheduling to general resource types. It also enables the use of application semantics to effect productive meta-level resource tradeoffs. As such, it harnesses the collective power of end system resource managers, QoS-aware IP gateways, and adaptive applications for robust and predictable performance The current release runs as an extension to Solaris 2.5.1 and supports the following system modules for QoS support:

Hierarchical CPU scheduler with decoupled delay and rate guarantees
QoS aware cross domain interprocess communication
Hierarchical Fair Service Curve bandwidth scheduler [Stoica97]
Resource reservation for receive side packet processing
Scheduler integrated performance monitoring

Supported platforms

Sun Ultra-SPARC I workstations (sparc/sun4u architecture), will probably work also for Ultra-II
Pentium II personal computers (i86/i86pc architecture)
Network interfaces: AMD Lance Ethernet (le), Sun FastEthernet (hme), Myrinet (myri), 3Com EtherLink III 3C509/3C579 (elx)

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References

[Stoica97] I. Stoica, H. Zhang, and E.T.S. Ng, A Hierarchical Fair Service Curve Algorithm for Link-sharing, Real-time and Priority Services, Proc. ACM SIGCOMM, September 1997.

Please refer also to SSAL publication list.

Concerto

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References

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