LIUNX中的延迟写
通过延迟分配,XFS赢得了许多机会来优化写性能。
By delaying allocation, XFS gains many opportunities to optimize write performance.
该延迟可以有助于减少与写日志记录相关的数据库管理器开销。
This delay can help reduce the database manager overhead associated with writing log records.
在正常的环境中,一个写请求是直接写入到缓存中而不会引起延迟的,因为它不需要访问物理磁盘。
Under normal circumstances, a write request is written directly to cache and incurs no delay because physical disk access is not required.
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