System and method for I/O optimization in a multi-queued environment

A storage module comprising

• a memory;
• and
• a processor in communication with the memory and configured to:
• receive a plurality of commands from a host, wherein each command has a respective data characteristic, wherein the host stores the plurality of commands in a plurality of queues, wherein each queue is dedicated to commands of a certain data characteristic, whereby because each queue is dedicated to commands of a certain data characteristic, the plurality of queues are dedicated to commands of different data characteristics, and wherein each command is sorted into a queue that is dedicated to the command's data characteristic irrespective of which thread in the host issued the command;
• and
• process the commands using a priority system based on data characteristics of the queues storing the commands.

A storage module comprising

• a memory;
• and
• a processor in communication with the memory and configured to:
• generate a plurality of completions;
• and
• submit the plurality of completions to a plurality of queues in a host, wherein a completion is sorted into a queue based on its status, wherein each queue is dedicated to commands of a certain data characteristic, whereby because each queue is dedicated to commands of a certain data characteristic, the plurality of queues are dedicated to commands of different data characteristics, and a command is sorted into a queue that is dedicated to the command's data characteristic irrespective of which thread in the host issued the command.

A method for providing a storage module with requested commands, the method comprising:

• performing the following in a host comprising a memory storing a plurality of commands to be performed in a storage module and a plurality of queues, wherein each command has a respective data characteristic, and wherein each queue is dedicated to commands of a certain data characteristic, whereby because each queue is dedicated to commands of a certain data characteristic, the plurality of queues are dedicated to commands of different data characteristics:
• sorting a plurality of commands into the plurality of queues based on the commands' data characteristics, wherein each command is sorted into a queue that is dedicated to the command's data characteristic irrespective of which thread in the host issued the command;
• receiving a read request from the storage module for commands in the plurality of queues;
• and
• providing the storage module with the requested commands.

A method for processing commands, the method comprising:

• performing the following in a storage module comprising a memory:
• receiving a plurality of commands from a host, wherein each command has a respective data characteristic, wherein the host stores the plurality of commands in a plurality of queues, wherein each queue is dedicated to commands of a certain data characteristic, whereby because each queue is dedicated to commands of a certain data characteristic, the plurality of queues are dedicated to commands of different data characteristics, and wherein each command is sorted into a queue that is dedicated to the command's data characteristic irrespective of which thread in the host issued the command;
• and
• processing the commands using a priority system based on data characteristics of the queues storing the commands.

A method of submitting a plurality of completions, the method comprising:

• performing the following in a storage module comprising a memory:
• generating a plurality of completions;
• and
• submitting the plurality of completions to a plurality of queues in a host, wherein a completion is sorted into a queue based on its status, wherein each queue is dedicated to commands of a certain data characteristic, whereby because each queue is dedicated to commands of a certain data characteristic, the plurality of queues are dedicated to commands of different data characteristics;
• and a command is sorted into a queue that is dedicated to the command's data characteristic irrespective of which thread in the host issued the command.