Software System State Recovery via Core Dump Extraction

The patent extracts the checkpoint saving operation from continuous runtime execution and performs it only at shutdown. The core dump is generated once when the application exits, rather than continuously during operation. This eliminates the runtime overhead of continuous checkpoint generation while maintaining the ability to recover application state after shutdown by loading the saved core dump data.

The patent implements periodic action by saving the application state only at specific intervals - namely at shutdown. Instead of continuous or frequent periodic saving during runtime, the core dump is generated once when the application exits. This reduces the frequency of I/O operations from continuous/multiple times per hour to once per shutdown event, significantly improving system performance while still capturing the application state for recovery.

The patent implements self-service by enabling the system to automatically restore application state without user intervention. The library automatically detects the core dump file, loads the saved application state data (including window positions, document locations, and application configurations), and restores the application to its previous state. This eliminates the need for users to manually redeploy applications and documents, reducing restoration time from potentially minutes to automatic background processing.

The patent treats core dump files as disposable temporary objects rather than permanent storage requirements. The core dump is generated at shutdown, used immediately upon restart to restore application state, and then can be discarded. This approach accepts the storage cost of temporary core dump files as a necessary trade-off for enabling automatic recovery, but the files are short-lived and only exist transiently during the restart process rather than being retained long-term.