Patent ID: 8549523

Claim:
A computer program product, comprising: a computer usable storage memory having stored therein computer usable program code for performing runtime analysis and runtime control of a multithreaded computer program, the computer usable program code, which when executed by a computer hardware system, causes the computer hardware system to perform: identifying threads of the multithreaded computer program to be analyzed; folding, under control of a supervisor thread, a plurality of the identified threads together to be executed as a single folded thread; monitoring the execution of the folded thread to determine a status of the identified threads; presenting in a user interface at least one indicator corresponding to the determined status of the identified threads; receiving a user selection of a first of the identified threads and a second of the identified threads; assigning the first thread to assume a context of the second thread; and executing, during execution of the identified threads, the first thread in lieu of the second thread when the second thread would otherwise be executed but for the first thread assuming the context.