This read-only value, marked obsolete in favor of the newer rbnMemoryTable, reported the cumulative count of AOS memory allocation calls made on a given module since the system booted, useful as a proxy for how CPU-expensive recent activity had been since allocation calls are relatively costly. Admins used it to gauge allocation-heavy activity on a module before it was superseded by rbnMemoryCumulBlocks. A sharp jump in this counter during a specific operation would have told an admin that operation was unusually allocation-intensive.