Use model statistics storage in a memory subsystem
Methods, systems, and apparatuses include determining, by a memory subsystem, use model statistics for a memory portion of the memory subsystem, where the use model statistics include a count of commands received by the memory subsystem from a host system targeting the memory portion and details about the memory subsystem. It is determined that the memory subsystem is powering down. The use model statistics are stored in a use model statistics storage of the memory subsystem by the memory subsystem in response to determining that the memory subsystem is powering down.
1 . A method comprising:
determining, by a controller of a memory subsystem, use model statistics for a memory portion of the memory subsystem, wherein the use model statistics include a number of commands received by the controller of the memory subsystem from a host system targeting the memory portion and details about the memory subsystem;
estimating a program erase cycle count for the memory portion using the number of commands, wherein the use model statistics further includes the program erase cycle count;
determining that the memory subsystem is powering down; and
storing, by the memory subsystem, in response to determining that the memory subsystem is powering down, the use model statistics in a use model statistics storage of the memory subsystem, wherein the use model statistics storage includes memory portions accessible by the host system.
2 . The method of claim 1 , further comprising:
determining, at power up of the memory subsystem, a next free memory subportion of the use model statistics storage, wherein storing the use model statistics comprises storing the use model statistics in the next free memory subportion.
3 . The method of claim 1 , wherein the details about the memory subsystem include register data based on status bits of a register of the memory portion.
4 . The method of claim 1 , wherein the details about the memory subsystem further include a temperature of the memory portion.
5 . The method of claim 1 , further comprising:
receiving, from the host system, a command to store the use model statistics; and
storing, by the memory subsystem, in response to receiving the command, the use model statistics in the use model statistics storage.
6 . The method of claim 1 , further comprising:
receiving, from the host system, a command to read the use model statistics storage;
executing, in response to receiving the command, a read operation on the use model statistics storage; and
sending results of the executed read operation to the host system.
7 . A non-transitory computer-readable storage medium comprising instructions that, when executed by a processing device, cause the processing device to:
determine, by a controller of a memory subsystem, use model statistics for a memory portion of the memory subsystem, wherein the use model statistics include a number of commands received by the controller of the memory subsystem from a host system targeting the memory portion and details about the memory subsystem;
estimate a program erase cycle count for the memory portion using the number of commands, wherein the use model statistics further includes the program erase cycle count;
determine that the memory subsystem is powering down; and
store, by the memory subsystem, in response to determining that the memory subsystem is powering down, the use model statistics in a use model statistics storage of the memory subsystem, wherein the use model statistics storage includes memory portions accessible by the host system.
8 . The non-transitory computer-readable storage medium of claim 7 , wherein the processing device is further to:
determine, at power up of the memory subsystem, a next free memory subportion of the use model statistics storage, wherein storing the use model statistics comprises storing the use model statistics in the next free memory subportion.
9 . The non-transitory computer-readable storage medium of claim 7 , wherein the details about the memory subsystem include register data based on status bits of a register of the memory portion.
10 . The non-transitory computer-readable storage medium of claim 7 , wherein the details about the memory subsystem further include a temperature of the memory portion.
11 . The non-transitory computer-readable storage medium of claim 7 , wherein the processing device is further to:
receive, from the host system, a command to store the use model statistics; and
store, by the memory subsystem, in response to receiving the command, the use model statistics in the use model statistics storage.
12 . The non-transitory computer-readable storage medium of claim 7 , wherein the processing device is further to:
receive, from the host system, a command to read the use model statistics storage;
execute, in response to receiving the command, a read operation on the use model statistics storage; and
send results of the executed read operation to the host system.
13 . A system comprising:
a plurality of memory devices; and
a processing device, operatively coupled with the plurality of memory devices, to:
determine, at power up of a memory subsystem, a next free memory subportion of a use model statistics storage, wherein storing the use model statistics comprises storing the use model statistics in the next free memory subportion;
determine, by a controller of the memory subsystem, use model statistics for a memory portion of the memory subsystem, wherein the use model statistics include a number of commands received by the controller of the memory subsystem from a host system targeting the memory portion and details about the memory subsystem;
estimate a program erase cycle count for the next free memory portion using the number of commands, wherein the use model statistics further includes the program erase cycle count;
determine that the memory subsystem is powering down; and
store, by the memory subsystem, in response to determining that the memory subsystem is powering down, the use model statistics in the use model statistics storage of the memory subsystem, wherein the use model statistics storage includes memory portions accessible by the host system.
14 . The system of claim 13 , wherein the details about the memory subsystem include register data based on status bits of a register of the memory portion.
15 . The system of claim 13 , wherein the details about the memory subsystem further include a temperature of the memory portion.
16 . The system of claim 15 , wherein the processing device is further to:
receive, from the host system, a command to store the use model statistics; and
store, by the memory subsystem, in response to receiving the command, the use model statistics in the use model statistics storage.
17 . The system of claim 13 , wherein the processing device is further to:
receive, from the host system, a command to read the use model statistics storage;
execute, in response to receiving the command, a read operation on the use model statistics storage; and
send results of the executed read operation to the host system.