公开(公告)号：US10810098B2

公开(公告)日：2020-10-20

申请号：US15749108

申请日：2016-07-29

Applicant: ARM IP Limited

Inventor： Milosch Meriac ,  Thomas Christopher Grocutt ,  Jonathan Michael Austin ,  Geraint David Luff

IPC: G06F11/30 ,  G06F11/34 ,  G06F11/07 ,  G06F21/50 ,  G06F21/56

Abstract: A first processing component samples and lossily accumulates statistical activity data by generating at least one data bucket by segmenting a memory window in a memory and providing a map of the segmented memory window; sampling to detect activity in the data bucket and surjectively populating the map with statistical activity data; and responsive to a trigger, passing at least part of a population of the map to a second processing component. The second processing component receives and stores the at least part of the population of the surjective map, compares it with at least one previously stored map population; and on detecting anomalous patterning, performs an “anomaly detected” action.