Operation based multi-level caching

A method for operation based multi-level caching, the method comprising:

• receiving a file system operation request from a user via a computing device,
• wherein the request is received for a data item;
• analyzing the request to extract information with respect to a file system operation and the data item;
• making a first determination, based on the information and second information obtained from memory, that an index node (inode) of the data item is cached to the memory previously;
• making a second determination, based on the first determination, that the inode is currently cached to the memory;
• identifying, based on the second determination, a first cache level in the memory that the inode was previously cached to;
• making a third determination, based on the identifying and using contextual hints to determine a cache level, that the first cache level is not correct;
• making a fourth determination, based on the third determination, that an inode eviction in a second cache level is not needed;
• and
• promoting, based on the fourth determination, the inode from the first cache level to the second cache level to cache the inode to the second cache level.

A method for operation based multi-level caching, the method comprising:

• receiving a file system operation request from a user via a computing device, wherein the request is received for a data item;
• analyzing the request to extract information with respect to a file system operation and the data item;
• making a first determination, based on the information and second information obtained from memory, that an index node (inode) of the data item is cached to the memory previously;
• making a second determination, based on the first determination, that the inode is currently cached to the memory;
• identifying, based on the second determination, a first cache level in the memory that the inode was previously cached to;
• making a third determination, based on the identifying and using contextual hints to determine a cache level, that the first cache level is not correct;
• making a fourth determination, based on the third determination, that an inode eviction in a second cache level is needed;
• evicting, based on the fourth determination, a second inode of a second data item from the second cache level;
• and
• demoting, after the evicting, the inode from the first cache level to the second cache level to cache the inode to the second cache level.