Originally Posted By: uc50ic4more
Originally Posted By: calvin1
I forgot some possibly relevant details. I stayed with ext3 for /boot because the ext4 in grub is not official (SCARRY!). Second, /home was already reiserfs and I didn't feel like doing the hokey-pokey with the 60GB of data there.
Converting any filesystems *to* ext4 will not extend the benefits of ext4 to those files, as they were written using ext3.
reiserfs is pretty smokin' fast, and journalled anyway, no? Or am I thinking Reiser4?
The only conversions possible are ext2->ext3->ext4. I also have JFS, XFS & reiser partitions in use in various places because I think their strengths are a good fit for specific use cases I have encountered. There's no good way to convert any of those other file systems into ext4. I did eventually convert my reiser3 /home to ext4 after I saw the startup improvements that gave me on root. I cut my boot time from 42s to 18s: roughly half of my boot time was being spent initializing my reiser3 partitions.
reiser3 is still competitive in speed and stability, don't get me wrong. reiser3 was the first Linux fs to go journaled and to introduce many of the more advanced concepts that are now in ext4. If this were a server the 20s worth of extra boot time would be completely meaningless. However, this is for a dual-boot system that shares a CPU with my corporate desktop. It's there for me to sometimes do media transcoding and editing when I need. In that use-case the 20s is a lot more significant because I need to switch over to Ubuntu, get my files converted and switch back quickly before something urgent comes up on the Windows side.