Paul Dwerryhouse <paul@dwerryhouse.com.au> wrote:
Given that the 'relatime' option is now the default (since kernel 2.6.30), it's probably not that much of a concern anymore. Yes, relatime will create slightly more writes than noatime would, but it will be considerably fewer than the old default option.
I thought the new default was just for ext3/ext4, but I might be mistaken. The Debian page cited earlier in this thread lists additional mount options, including enabling trim and others specific to Btrfs. Whether one would run Btrfs on a laptop at this stage in its development is a matter of judgment. I can predict there'll be arguments on both sides from people who have different needs and priorities. I personally wouldn't feel comfortable with it yet for general use, but for a development/test system with no important data to preserve that could easily be re-installed, I might use it.