[zfs-discuss] Does "inode i_version win" in Linux 4.16 affect ZFS too?

Stanislav Sergiienko ssergiienko.s at gmail.com
Sun Apr 29 15:45:57 EDT 2018


So performance is not improved for ZFS. Thanks for an answer

On 29 April 2018 at 21:49, Richard Yao <ryao at gentoo.org> wrote:

> As far as I can tell, ZFSOnLinux already had this optimization. The change
> in Linux 4.16 affected us only in that we needed a new autotools check to
> handle the change to the kernel VFS API:
>
> https://github.com/zfsonlinux/zfs/commit/18f57327e0c2c669034e1fff126087
> 7fd70c3038
>
> On Apr 29, 2018, at 11:57 AM, Stanislav Sergiienko via zfs-discuss <
> zfs-discuss at list.zfsonlinux.org> wrote:
>
> Hi,
> According to the https://www.phoronix.com/scan.
> php?page=news_item&px=Linux-4.16-inode-i_version-Win (and
> https://lkml.org/lkml/2018/1/29/230 ) there is an optimization in kernel
> 4.16 which reduce cases where inodes are updated and this results in a
> faster disk i/o for some cases.
> I'm wondering, does it affect ZFS too or only can help "regular" Linux
> filesystems?
>
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>
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