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Date:   Wed, 3 Mar 2021 16:54:15 -0500
From:   "J. Bruce Fields" <bfields@fieldses.org>
To:     Steve Dickson <SteveD@RedHat.com>
Cc:     Linux NFS Mailing list <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 0/7 V4] The NFSv4 only mounting daemon.
Message-ID: <20210303215415.GE3949@fieldses.org>
References: <20210219200815.792667-1-steved@redhat.com>
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 <20210303152342.GA1282@fieldses.org>
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On Wed, Mar 03, 2021 at 04:22:28PM -0500, Steve Dickson wrote:
> Hey!
> 
> On 3/3/21 10:23 AM, J. Bruce Fields wrote:
> > On Tue, Mar 02, 2021 at 05:33:23PM -0500, Steve Dickson wrote:
> >>
> >>
> >> On 2/24/21 3:30 PM, J. Bruce Fields wrote:
> >>> On Fri, Feb 19, 2021 at 03:08:08PM -0500, Steve Dickson wrote:
> >>>> nfsv4.exportd is a daemon that will listen for only v4 mount upcalls.
> >>>> The idea is to allow distros to build a v4 only package
> >>>> which will have a much smaller footprint than the
> >>>> entire nfs-utils package.
> >>>>
> >>>> exportd uses no RPC code, which means none of the 
> >>>> code or arguments that deal with v3 was ported, 
> >>>> this again, makes the footprint much smaller. 
> >>>
> >>> How much smaller?
> >> Will a bit smaller... but a number of daemons like nfsd[cld,clddb,cldnts]
> >> need to also come a long. 
> > 
> > Could we get some numbers?
> > 
> > Looks like nfs-utils in F33 is about 1.2M:
> > 
> > $ rpm -qi nfs-utils|grep ^Size
> > Size        : 1243512
> > 
> > $ strip utils/mountd/mountd
> > $ ls -lh utils/mountd/mountd
> > -rwxrwxr-x. 1 bfields bfields 128K Mar  3 10:12 utils/mountd/mountd
> > $ strip utils/exportd/exportd
> > $ ls -lh utils/exportd/exportd
> > -rwxrwxr-x. 1 bfields bfields 106K Mar  3 10:12 utils/exportd/exportd
> > 
> > So replacing mountd by exportd saves us about 20K out of 1.2M.  Is it
> > worth it?
> In smaller foot print I guess I meant no v3 daemons, esp rpcbind. 

The rpcbind rpm is 120K installed, so if the new v4-only rpm has no
dependency on rpcbind then we save 120K.

So, for stuff needed in both v4-only and full cases, would we package
that in a common rpm that they both depend on?

--b.