Performance resource amount information management apparatus, computer system, and performance resource amount information management method

A computer system comprising:

• one or more nodes that execute software;
• and
• a performance resource amount information management apparatus that manages performance resource amount information indicating a relationship between a resource amount of hardware allocated to software executed by the nodes and performance of the software, wherein
• the performance resource amount information management apparatus
• stores the performance resource amount information in a storage unit in association with an execution environment in which the software of the node is executed,
• acquires operation information capable of specifying the performance of the software executed in the execution environment from the node,
• determines whether or not a performance difference between actual performance of the software specified by the operation information and the performance of the software based on the performance resource amount information corresponding to the execution environment is equal to or more than a predetermined value,
• modifies the performance resource amount information corresponding to the execution environment based on the operation information when the performance difference is equal to or more than the predetermined value,
• determines a resource amount of the hardware to be allocated to the software based on the performance resource amount information when the performance resource amount information is modified, and
• set the node so that hardware of the determined resource amount is allocated to the software.

A performance resource amount information management method by a performance resource amount information management apparatus that manages performance resource amount information indicating a relationship between a resource amount of hardware allocated to software executed in a predetermined node and performance of the software, the performance resource amount information management method comprising:

• by the performance resource amount information management apparatus,
• storing the performance resource amount information in a storage unit in association with an execution environment in which the software of the node is executed;
• acquiring operation information capable of specifying performance of the software executed in the execution environment;
• determining whether or not a performance difference between actual performance of the software specified by the operation information and the performance of the software based on the performance resource amount information corresponding to the execution environment is equal to or more than a predetermined value;
• and
• modifying the performance resource amount information corresponding to the execution environment based on the operation information when the performance difference is equal to or more than the predetermined value.