Patent ID: 8583698

Claim:
A hierarchical load estimation system comprising: a memory device which stores: a hierarchical invocation data indicating a design of hierarchical processing that is hierarchically invoked in a multi-layer system, the hierarchical invocation data including: a first data indicating an invocation count of top processing of the hierarchical processing, the top processing including an externally demanded service; and a second data specifying an invocation relationship between upper processing of the hierarchical processing and lower processing of the hierarchical processing; an issuance data specifying database manipulation sentences issued by database manipulation processing in said hierarchical processing; and a load data indicating a load per a database manipulation sentence; an invocation count calculation module configured to refer to said hierarchical invocation data to calculate an invocation count of said database manipulation processing by using said first data and said second data, thereby calculating an invocation count of processing of each layer in order from an upper layer towards a lower layer; an issue count calculation module configured to refer to said calculated invocation count and said issuance data to calculate an issue count of the database manipulation sentences issued by said database manipulation processing; and a load calculation module configured to refer to said calculated issue count and said load data to calculate a load of the database manipulation sentences issued by said database manipulation processing.