File Systems

  1. File System Performance
    1. Caching and Buffering
      1. Buffer Cache Organization
        1. Page Cache Integration
          1. Cache Replacement Policies
            1. LRU and Clock Algorithms
            2. Read-Ahead Strategies
              1. Sequential Read Detection
                1. Prefetch Algorithms
                  1. Adaptive Prefetching
                  2. Write-Behind Policies
                    1. Delayed Write Implementation
                      1. Dirty Buffer Management
                        1. Sync and Flush Operations
                        2. Cache Coherency
                          1. Multiple Reader/Writer Coordination
                            1. Memory-Mapped File Consistency
                          2. Block Size Optimization
                            1. Block Size Trade-offs
                              1. Internal Fragmentation
                                1. I/O Efficiency
                                  1. Memory Usage
                                  2. Variable Block Sizes
                                    1. Extent-Based Systems
                                      1. Adaptive Block Sizing
                                    2. Disk Layout Optimization
                                      1. Data Locality Principles
                                        1. Spatial Locality
                                          1. Temporal Locality
                                          2. Cylinder Group Organization
                                            1. Metadata Placement
                                            2. Defragmentation
                                              1. Fragmentation Detection
                                                1. Online vs. Offline Defragmentation
                                                  1. Performance Impact

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                                              6. On-Disk File System Implementation

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                                              8. File System Reliability and Recovery