Journaling File System Data Processing Module
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Solution Overview
Problem
Electronic devices experience delays during data storage processes, particularly when handling large files, due to the combination of foreground and background tasks in journaling file systems, which can inconvenience users by slowing down screen applications and memory operations.
Innovation Solution
An electronic device with a memory and storage system that supports journaling, employing a data processing module to determine the appropriate journaling method (writeback mode or ordered mode) based on the properties of the application and file, minimizing delays by optimizing data storage processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If journaling file system processes both foreground and background tasks through the same transaction, then data integrity is maintained, but processing delay increases
Solution Approach 1:
The patent segments the journaling transaction into two separate transactions: one for foreground tasks and another for background tasks. This segmentation allows foreground applications to complete their data storage operations without being blocked by background tasks, thereby reducing processing delay while maintaining data integrity through separate transaction commits.
Solution Approach 2:
The patent dynamically adjusts the journaling mode based on the type of task being executed. For foreground tasks, it uses ordered mode to ensure data integrity, while for background tasks, it uses writeback mode to improve performance. This dynamic adaptation resolves the contradiction by optimizing the trade-off between reliability and speed according to task characteristics.
2Reliability
If large files are stored in memory through journaling, then data integrity is ensured, but storage speed decreases
Solution Approach 1:
The patent segments large file storage operations into foreground and background transactions. Foreground storage operations that require data integrity use ordered journaling mode, while background operations use writeback mode. This segmentation allows large files to be stored faster by bypassing unnecessary journaling overhead for non-critical operations.
Solution Approach 2:
The patent changes the journaling parameter (ordered mode vs. writeback mode) based on the storage task characteristics. For large file storage in background tasks, it switches to writeback mode which improves storage speed by not waiting for journal commit, while still ensuring data integrity through the overall transaction mechanism.
3Reliability
If journaling is enabled for all file operations, then data integrity is maintained, but system performance deteriorates
Solution Approach 1:
The patent applies different journaling qualities to different parts of the system based on their requirements. Critical foreground operations receive full journaling protection (ordered mode), while non-critical background operations use simplified journaling (writeback mode). This local differentiation maintains data integrity where needed while improving overall system performance.
Solution Approach 2:
The patent dynamically selects the appropriate journaling mode based on the operation type. The system transitions between ordered mode and writeback mode depending on whether the operation is a foreground or background task, thereby optimizing the balance between data integrity and system performance for each specific operation.
Data Source
AI summary
An electronic device is provided. The electronic device includes a memory configured to store a file, a storage configured to support journaling of the file stored in the memory, and a data processing module configured to process a journaling method of the file in one mode of a writeback mode and an ordered mode in correspondence to at least one of a property of an application relating to the file and a property of the file.