sudo blockdev --report sudo blockdev --setra 16384 sd[abcd]
i've tried a few read-ahead amounts, and they all seem to show similar performance. E.g. a raid 1 rebuild jumped from ~46 to ~52 MiB/s after command. -- very sub-optimal default readahead settings on device and unused readahead setting in LVM https://bugs.launchpad.net/bugs/129488 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
