Yes, it does make reboots faster. I'm changing the name of this bug to attract more attention.
** Summary changed: - Slow reboot sequence + autodetect kernel argument "reboot=warm" -- autodetect kernel argument "reboot=warm" https://launchpad.net/bugs/78693 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs