Analysis of operator graph and dynamic reallocation of a resource to improve performance

A computer-implemented method executed by at least one processor for improving performance of an application at runtime, the method comprising the steps of:

• displaying an operator graph that represents the application using a plurality of operators and a plurality of data flows between the plurality of operators;
• analyzing the operator graph at runtime when the application runs;
• detecting at least one problem in the operator graph based on at least one data bottleneck in the operator graph;
• when the at least one problem includes a first operator in the operator graph that is compute bound, performing at least one of the steps:
• increasing priority of processing the first operator;
• allocating additional CPUs to the first operator;
• increasing clock frequency for at least one CPU in the first operator;
• using a simplified, less accurate algorithm in the first operator;
• using an algorithm that uses more memory in the first operator;
• when the at least one problem includes a second operator in the operator graph that is memory bound, performing at least one of the steps:
• allocating additional memory to the second operator;
• and
• using an algorithm for the second operator that uses more CPU;
• when the at least one problem includes a third operator in the operator graph that is communication bound with respect to a fourth operator, performing at least one of the steps:
• increasing bandwidth of a network connection between the third operator and the fourth operator;
• allocating a dedicated link between the third operator and the fourth operator;
• moving one of the third and fourth operators to a different node;
• and
• changing processing of the third and fourth operators to balance network traffic;
• when the at least one problem includes a fifth operator that is storage bound, performing at least one of the steps:
• allocating a solid state drive to the fifth operator, and moving a cache in the fifth operator to the solid state drive;
• allocating a storage area network to the fifth operator, and moving the cache in the fifth operator to the storage area network;
• allocating an in-memory file system to the fifth operator, and moving the cache in the fifth operator to the in-memory file system;
• allocating additional CPUs in the fifth operator to reduce usage of the cache;
• and
• allocating additional memory in the fifth operator to reduce usage of the cache.