Patent · US Active

Garbage collection adapted to host write activity

US11874772B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Inventors

Deping He · Boise, US
Qing Liang · Boise, US
David Aaron Palmer · Boise, US

Key dates

Filing date	Jul 16, 2021
Grant date	Jan 16, 2024
Priority date	—
Expiry date	Dec 8, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/7205
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Systems and methods for adapting garbage collection (GC) operations in a memory device to a host write activity are described. A host write progress can be represented by an actual host write count relative to a target host write count. The host write activity may be estimated in a unit time such as per day, or accumulated over a specified time period. A memory controller can adjust an amount of memory space to be freed by a GC operation according to the host write progress. The memory controller can also dynamically reallocate a portion of the memory cells between a single level cell (SLC) cache and a multi-level cell (MLC) storage according to the host write progress.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.