Content deleted Content added
→Rationale: Fix redlink |
|||
Line 7:
Conventional file systems tend to lay out files with great care for spatial locality and make in-place changes to their data structures in order to perform well on magnetic disks, which tend to seek relatively slowly.
The design of log-structured file systems is based on the hypothesis that this will no longer be effective because ever-increasing memory sizes on modern computers would lead to I/O becoming write-heavy because reads would be almost always satisfied from memory cache. A log-structured file system thus treats its storage as a [[Circular buffer|circular log]] and writes sequentially to the head of the log. This maximizes write throughput on magnetic media by avoiding costly seeks.
Keeping a log has several important side effects:
| |||