Nanosecond timestamps Most file systems, including ext3, include timestamp data that is accurate to a second. Ext4 extends the accuracy of this data to a nanosecond.
Ext4支持在線磁盤整理,這能夠改善總體*能。
Ext4 has evolved with advancements in file system research, incorporating ideas from other novel file systems (such as the XFS, JFS, Reiser, and the IRON fault-tolerant file system techniques).
特別是Ext4利用日誌校驗和寫屏障來減少由日誌或亂序寫入磁盤緩存(out-of- orderwritecachingonharddrives)而導致的文件系統數據部一致的概率。
特別是Ext4利用日誌校驗和寫屏障來減少由日誌或亂序寫入磁盤緩存(out-of-orderwritecachingonharddrives)而導致的文件系統數據部一致的概率。