Date: Thu, 11 Jul 2013 07:36:11 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: G V <gvazz@yahoo.com> Cc: freebsd-fs@freebsd.org Subject: Re: Nfs readdir/readdirplus buffer size Message-ID: <1247906018.4407.1373542571821.JavaMail.root@uoguelph.ca> In-Reply-To: <1373477058.14313.YahooMailNeo@web120501.mail.ne1.yahoo.com>
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Girish wrote:
> =C2=A0 I would like to know what is the buffer size passed by the client
> =C2=A0 as an argument in the readdir/readdirplus
> request. Is it based on dtpref setting on the server? OR is it=C2=A0 a
> fixed value.
>=20
> =C2=A0I am changing dtpref value on the Solaris and I would like to know
> =C2=A0how freebsd client would read that.
>=20
I'm afraid I don't have time to look at the code right now, so this
might not be 100% accurate (and might be different for the old client):
- the size readdir uses is
- capped at MAXBSIZE (64K)
- capped at the min(rsize,readdirsize) if specified as mount arguments
- capped at dtmax as specified by the server
--> I can't remember how dtpref is used. You'll need to look at the sources
(or just try it and look at a packet trace in wireshark) to figure that
one out.
rick
> thanks,
> Girish
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>=20
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