Patent ID: 7882323
Filing Date: 2011-02-01
Classification: G06F

Abstract:
1. A method for scrubbing a memory in a computer system comprising the steps of: determining a scrub slack value; determining a memory workload; adjusting a scrub rate as a function of the scrub slack value and the memory workload; adjusting the scrub rate to be at a first scrub rate when the memory workload is at a first memory workload value and the scrub slack is at a first scrub slack value; adjusting the scrub rate to be at a second scrub rate, less than the first scrub rate, when the memory workload is at a second memory workload value, greater than the first workload value, and the scrub slack is at the first value; and adjusting the scrub rate to be at a third scrub rate, greater than the first scrub rate, when the memory workload is at the first memory workload value, and the scrub slack is at a second scrub slack value less than the first scrub slack value.