/dev/sda1 / ext3 errors=remount-ro 0 1 /dev/sda9 /home ext3 defaults 0 2
Turning off atimeIf atime is on, every time a file is accessed, whether for read or write, a small change is written to the file detailing the last access time. To disable atime on ext3 partitions:
/dev/sda1 / ext3 errors=remount-ro,noatime,nodiratime 0 1 /dev/sda9 /home ext3 defaults,noatime,nodiratime 0 2
Disable extended user attributesMost likely you do not need extended user attributes, so disable them.
/dev/sda9 /home ext3 defaults,noatime,nodiratime,nouser_xattr 0 2
Use journal data writebackBy default journal data ordered option is used. According to this report, you can double read performance. You can simply turn on writeback for any filesystem (but root) by adding data=writeback.
/dev/sda1 / ext3 errors=remount-ro 0 1 /dev/sda9 /home ext3 defaults,noatime,nodiratime,nouser_xattr,data=writeback 0 2
Journal data writeback for root filesystemIf you try to do this with root (/) filesystem you will get an error message during the boot and the root filesystem remains read-only. Remount it read-write:
mount -n -o remount, rw /You need setup default filesystem option for root:
deby:~# tune2fs -o journal_data_writeback /dev/sda1 deby:~# tune2fs -l /dev/sda1 | grep 'Default mount option' Default mount options: journal_data_writebackNow you can reboot your system so your changes take effect.
Deactivate barriersWrite barriers enforce proper on-disk ordering of journal commits, making volatile disk write caches safe to use, at some performance penalty. Deactivating barriers make sense if you have battery-backed storage only.
/dev/sda9 /home ext3 defaults,noatime,nodiratime,nouser_xattr,data=writeback,barrier=0 0 2
Avoid buffer heads associationDo not attach buffer_heads to file pagecache. This works together with data writeback option.
/dev/sda9 /home ext3 defaults,noatime,nodiratime,data=writeback,barrier=0,nobh 0 2
Extend commit intervalThis options let sync all data and metadata every N seconds. The default value is 5 seconds.
/dev/sda9 /home ext3 defaults,noatime,nodiratime,nouser_xattr,data=writeback,barrier=0,nobh,commit=30 0 2Have a look at more mount options here. Reboot your computer so all fine tunning take place.