Re: [PATCH V2] nfs(5): Update rsize/wsize options

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On Wed, 20 Nov 2024 at 21:56, Steve Dickson <steved@xxxxxxxxxx> wrote:
>
>
>
> On 11/19/24 11:59 AM, Steve Dickson wrote:
> > From: Seiichi Ikarashi <s.ikarashi@xxxxxxxxxxx>
> >
> > The rsize/wsize values are not multiples of 1024 but multiples of the
> > system's page size or powers of 2 if < system's page size as defined
> > in fs/nfs/internal.h:nfs_io_size().
> >
> > Signed-off-by: Steve Dickson <steved@xxxxxxxxxx>
> Committed... (tag: nfs-utils-2-8-2-rc2)
>
> I know we are still discussing this but I think
> this version is better than what we have.

Nope. The code is IMO wrong, and the docs are buggy too.

>
> So update patches are welcome!

Solaris, HPUX, FreeBSD and Windows NFSv3/v4 implementations all count in bytes.

Why does Linux again have to be the oddball of the family and count in
pages? Not-invented-here-syndrome,
need-reason-why-companies-have-to-pay-for-Linux-admin-training?
My recommendation would be to fix the code to count in bytes, rounded
to the page size, and being a minimum of one page size. Will bite of
course if someone chooses 2M pages as default on x86-64.

Dan
-- 
Dan Shelton - Cluster Specialist Win/Lin/Bsd




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