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SubjectRe: Strange performance change 59 -> 61/62
> mark_inode_dirty() tends to be called _very_ frequently.  Too frequently.
> Could you try remounting all filesystems noatime with
> mount /mnt/point -o remount,noatime
> and the below patch will prevent us calling the barrier-happy
> current_kernel_time() for noatime mounts.

Cool, that works nicely - thanks.

2.5.59-mjb6: 84 __mark_inode_dirty
2.5.61-mjb1: 594 __mark_inode_dirty
2.5.61-mjb1-no_mb: 74 __mark_inode_dirty
2.5.61-mjb1-noatime: 65 __mark_inode_dirty


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