SLC cache management

A method performed by a memory controller, the method comprising:

• determining a value of a performance metric of a memory device;
• configuring memory cells of an array of memory cells as belonging either to an SLC cache pool or an MLC storage pool based upon a profile, the profile specifying at least one rule for a size of the SLC cache pool based upon the value of the performance metric, the memory cells in the array configurable as either a multi-level cell (MLC) configuration or a single level cell (SLC) configuration;
• receiving, from a host device, over a communications interface, an updated profile, the updated profile specifying a different rule;
• and
• responsive to receiving the updated profile, reconfiguring the memory cells of the array as belonging to an SLC cache pool or an MLC storage pool according to the different rule in the updated profile and the value of the performance metric of the memory device.

A non-transitory machine-readable medium, storing instructions, which when executed by the machine, cause the machine to perform operations comprising:

• determining a value of a performance metric of a memory device;
• configuring memory cells of an array of memory cells as belonging either to an SLC cache pool or an MLC storage pool based upon a profile, the profile specifying at least one rule for a size of the SLC cache pool based upon the value of the performance metric, the memory cells in the array configurable as either a multi-level cell (MLC) configuration or a single level cell (SLC) configuration;
• receiving, from a host device, over a communications interface, an updated profile, the updated profile specifying a different rule;
• and
• responsive to receiving the updated profile, reconfiguring the memory cells of the array as belonging to an SLC cache pool or an MLC storage pool according to the different rule in the updated profile and the value of the performance metric of the memory device.