The three levels of write priority
The three levels of write priority
Posted Mar 16, 2009 7:41 UTC (Mon) by rvfh (guest, #31018)In reply to: Garrett: ext4, application expectations and power management by drag
Parent article: Garrett: ext4, application expectations and power management
I like the three levels of commit priority you set, and I would rather this was an open() option than a application decision to call fsync() (and when in case 2.?)
1. O_COMMITQUICK commit to disk every 5 seconds
2. O_COMMITNORMAL commit to disk every 30 seconds
3. O_COMMITLAZY commit to disk only if need be, or maybe after 300 seconds
Just my 0.02