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    SubjectRe: Recent kernel "mount" slow
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    On Wed, Nov 21, 2012 at 11:46 PM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
    > On Wed, Nov 21, 2012 at 2:09 AM, Jan Kara <jack@suse.cz> wrote:
    >> I haven't heard about such problem so far. What filesystem are you using?
    >
    > I've tried ext2/ext3/ext4/reiserfs/btrfs ... all seems to be slower
    > than before. Seems to be fs independent.
    >
    >> Can you quantify 'is slower'? Bisecting would be welcome of course.
    >
    > Haven't measure, but it seems to be 1 sec instead of .3 sec to mount.
    > I'll start bisecting:(
    > So, since I've 6 mounts on start up, now it takes 4 seconds longer to boot up.

    I started bisecting, and it seems to have multiple points of slowing
    down. The latest kernel is really slow mounting /dev/sda1 (fs
    independent) ... 0.529sec. Kernel 3.6.0 took 0.012sec, Kernel
    3.7.0-rc2 took 0.168sec. Again, these are very early results. I'm
    verifying them again.


    Jeff


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