Data Storage Device and Method for Maintaining a Weightage of Commands in a Plurality of Queue Layers

A method comprising:

• performing in a data storage device comprising a non-volatile memory, a plurality of queue layers and a host interface configured to communication with a host:
• receiving, via the host interface, commands received from a plurality of applications in the host;
• determining whether the commands received from the plurality of applications in the host can be stored in each of the plurality of queue layers according to a defined ratio;
• in response to determining that the commands received from the plurality of applications in the host cannot be stored in each of the plurality of queue layers according to the defined ratio, taking an action so that the commands received from the plurality of applications in the host are stored in each of the plurality of queue layers according to the defined ratio, wherein the action comprises changing a weightage for storing commands in a first queue layer, reducing a fragmentation range for at least one of the plurality of applications, causing at least one of the plurality of applications to align data to increase parallelism, or changing a command length;
• and
• after taking the action, executing commands stored in a last queue layer in parallel in the non-volatile memory.

A data storage device comprising:

• a host interface configured to communication with a host:
• a non-volatile memory;
• a plurality of queue layers;
• and
• means for maintaining a weightage of commands in the plurality of queue layers;
• wherein the means for maintaining comprises a special-purpose computer programmed to perform algorithm steps of:
• determining whether commands received from a plurality of applications in the host via the host interface can be stored in each of the plurality of queue layers according to a defined weightage;
• and
• in response to determining that the commands received from the plurality of applications in the host cannot be stored in the each of the plurality of queue layers according to the defined weightage, taking an action so that the commands received from the plurality of applications in the host are stored in each of the plurality of queue layers according to the defined weightage, wherein the action comprises changing a weightage for storing commands in a first queue layer, reducing a fragmentation range for at least one of the plurality of applications, causing at least one of the plurality of applications to align data to increase parallelism, or changing a command length;
• and
• after taking the action, executing commands stored in a last queue layer in parallel in the non-volatile memory.