Re: [RFC PATCH v1 00/30] fs: inode->i_version rework and optimization

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On Wed, Dec 21, 2016 at 12:03:17PM -0500, Jeff Layton wrote:
> Only btrfs, ext4, and xfs implement it for data changes. Because of
> this, these filesystems must log the inode to disk whenever the
> i_version counter changes. That has a non-zero performance impact,
> especially on write-heavy workloads, because we end up dirtying the
> inode metadata on every write, not just when the times change. [1]

Do you have numbers to justify these changes?
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