Limit algorithm using queue depth to control application...

Details Limit algorithm using queue depth to control application... Limit algorithm using queue depth to control application...

2007-03-27

2010-06-15

Bataille, Pierre-Michel (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Access timing

C711S152000, C709S224000

Reexamination Certificate

active

07739470

ABSTRACT:
Described are techniques for controlling performance of a data storage system. A performance goal specifying a limit for an I/O class is received. A number of requests of the I/O class to be processed concurrently to achieve the performance goal so that an observed performance value for the I/O class does not exceed the performance goal is determined. If the limit is a upper bound, the observed performance value falls within a range of one or more values equal to or less than the limit, and if the limit is a minimum value, the observed performance value falls within a range of one or more values equal to or greater than the limit.

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U.S. Appl. No. 11/634,355, Lawson et al.

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