Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral monitoring
Reexamination Certificate
2004-09-23
2009-12-15
Tsai, Henry W. H. (Department: 2184)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral monitoring
C710S052000
Reexamination Certificate
active
07634589
ABSTRACT:
A method provides adaptive interrupt latency to improve performance in a processing system. A ration of transmit queue depth to receive queue depth of the adapter is compared to its historical value in order to provide an estimate of processor load. The estimated processor load is then used to set a parameter that controls the frequency of an interrupt generator, which may be controlled by setting an interrupt queue depth threshold, packet frequency threshold or interrupt hold-off time value. The historical value may be predetermined, user-settable, obtained during a calibration interval or obtained by taking a long-term average of the ratio.
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Anand Vaijayanthimala K.
Girouard Janice Marie
Ratliff Emily Jane
Baca Matthew W.
Harris Andrew M.
International Business Machines - Corporation
Mitch Harris Atty at Law, LLC
Tsai Henry W. H.
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