Autonomic I/O adapter response performance optimization...

Details Autonomic I/O adapter response performance optimization... Autonomic I/O adapter response performance optimization...

2005-12-13

2005-12-13

Huynh, Kim (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C710S019000, C710S039000, C710S046000, C710S052000, C711S001000, C711S100000

Reexamination Certificate

active

06976100

ABSTRACT:
Methods, systems, and articles of manufacture for communicating with an I/O processor (IOP) are provided. Polling of message queue pointers is utilized to detect the occurrence of certain message queue related events, rather than rely on interrupts generated by the IOP. The polling may decrease the disruptive effects of IOP generated interrupts. In an effort to minimize the latency associated with detecting IOP related events, the polling may be initiated frequently by an operating system task dispatcher. In an effort to minimize context switches, the task dispatcher may schedule the processing of upstream messages detected while polling to coincide with naturally occurring task swaps.

REFERENCES:
patent: 5983292 (1999-11-01), Nordstrom et al.
patent: 6085277 (2000-07-01), Nordstrom et al.
patent: 6810440 (2004-10-01), Micalizzi et al.
patent: 6813658 (2004-11-01), Lam et al.

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