Ubuntu
linux package

  1. Bug #131094
  2. Comment #252

Comment 252 for bug 131094

Revision history for this message
Yan Li (yanli) wrote :

Tobias Oetiker:

Thank you very much for the update. I'm a bit surprised to see the single-reader on ext4 is worse than that on ext3. I'm to postpone the upgrade of my systems to ext4. I dare not using data=writeback yet.

I'm a bit confused about why you ran this on a RAID6 system. The RAID card/driver might affected the performance in a way yet to be understood. IMHO the less layers between Linux kernel and hard drive, the better we can understand the kernel I/O scheduler/fs etc.

Again, thank you for the great data.