Shared memory usage tracking across multiple processes

A method comprising:

• configuring a host device comprising at least one processor and an associated memory to implement a plurality of processes each configured to access a shared region of the memory;
• establishing a multi-process control group for the shared region, the multi-process control group comprising a coarse-grained control group having a granularity greater than a single page of the shared region;
• establishing single-process control groups for respective ones of the processes with each such single-process control group being a fine-grained control group having a granularity less than that of the coarse-grained control group;
• and
• tracking usage of the shared region by the processes, utilizing the multi-process control group and the single-process control groups;
• wherein said establishing a multi-process control group, establishing single-process control groups and tracking usage are performed by the host device.

A computer program product comprising a non-transitory processor-readable storage medium having stored therein program code of one or more software programs, wherein the program code when executed by a host device comprising at least one processor and an associated memory causes the host device:

• to implement a plurality of processes each configured to access a shared region of the memory;
• to establish a multi-process control group for the shared region, the multi-process control group comprising a coarse-grained control group having a granularity greater than a single page of the shared region;
• to establish single-process control groups for respective ones of the processes with each such single-process control group being a fine-grained control group having a granularity less than that of the coarse-grained control group;
• and
• to track usage of the shared region by the processes, utilizing the multi-process control group and the single-process control groups.