公开(公告)号：US20200210330A1

公开(公告)日：2020-07-02

申请号：US16234271

申请日：2018-12-27

Applicant: Micron Technology, Inc.

Inventor： Kishore Kumar MUCHHERLA ,  Sampath K. RATNAM ,  Ashutosh MALSHE ,  Peter Sean FEELEY

IPC: G06F12/02

Abstract: A processing device in a memory system determines whether a first data block of a plurality of data blocks on the memory component satisfies a first threshold criterion pertaining to a first number of the plurality of data blocks having a lower amount of valid data than a remainder of the plurality of data blocks. Responsive to the first data block satisfying the first threshold criterion, the processing device determines whether the first data block satisfies a second threshold criterion pertaining to a second number of the plurality of data blocks having been written to more recently than the remainder of the plurality of data blocks. Responsive to the first data block satisfying the second threshold criterion, the processing device determines whether a rate of change of an amount of valid data on the first data block satisfies a third threshold criterion. Responsive to the rate of change satisfying the third threshold criterion, the processing device identifies the first data block as a candidate for garbage collection on the memory component.