Abstract: Probes are instrumented in multiple software modules of a computer system having virtual machines running therein and executed in a coordinated manner. An output of one probe may be used to conditionally trigger another probe so that the precision of collected data may be improved. In addition, outputs of probes that are triggered in different software modules by related events may be synchronized and analyzed collectively. Probes also may be parallel processed in different processors so that multiple probes can be processed concurrently.

Abstract: Methods and systems are provided for increasing the speed at which source code is incrementally compiled by eagerly tokenizing the source code and retaining the sequence of tokens for later use of the compiler. The token sequence may be stored along with a snapshot of the execution state of the program. This snapshot represents the program logic as well as a specific state of the program. The snapshot can be sent to the client, which then recreates the state of the program. Fast startup time of programs on the client is achieved by incrementally compiling only the parts of the program that are executed. Rather than tokenizing the program each time a small portion of it is compiled, the sequence of tokens stored in the snapshot may be used.

Abstract: Probes are instrumented in multiple software modules of a computer system having virtual machines running therein and executed in a coordinated manner. An output of one probe may be used to conditionally trigger another probe so that the precision of collected data may be improved. In addition, outputs of probes that are triggered in different software modules by related events may be synchronized and analyzed collectively. Probes also may be parallel processed in different processors so that multiple probes can be processed concurrently.