Patent ID: 8306784

Claim:
A non-transitory computer readable medium encoded with a program for a real time analysis of a computer system for performing a method comprising the steps of: requesting at least partially repeatedly a set of tasks differing from each other or repeatedly generating events wherein the events request the tasks or the events are generated by the task, and occurrence pattern of the events requesting the tasks or the events generated by the task during the real-time analysis is represented at least partially by event densities, wherein the event densities comprise a set of elements each describing a part of the occurrence pattern of the events, wherein the set of elements comprises at least two other elements for the part of the occurrence pattern and said at least two other elements comprising represented by the at least two elements comprise a further set of further elements providing a plurality of hierarchical levels, and wherein an inner behavior of the task is described by a control stream which is represented by a control flow graph, determining the occurrence patterns of the events determined for a plurality of related partial graphs or nodes of the control flow graph, and determining, from the occurrence patterns of the events, a further occurrence pattern for a further control flow graph comprising the partial graphs or nodes, wherein for the determination at least partially an additional occurrence pattern of events of the partial graphs is used, and wherein the additional occurrence pattern represents a possible occurrence pattern of the events in time-based dependency on certain flow path points of the partial graphs, wherein the occurrence pattern of the events requesting the tasks or the events generated by the task during the real-time analysis is represented at least partially by the event densities, wherein the event densities comprise a set of elements each describing a part of the occurrence pattern of the events, wherein the set of elements comprises at least two other elements for the part of the occurrence pattern and said at least two other elements comprising a further set of further elements providing the plurality of hierarchical levels, and wherein the further set and further sets and thus the part of the occurrence pattern thereof differ from each other.