From: "ron minnich" <rminnich@gmail.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] From our "not quite grasping the concept" file
Date: Thu, 8 Nov 2007 08:42:20 -0800 [thread overview]
Message-ID: <13426df10711080842v2a47ebc6jfdb17390dab185e8@mail.gmail.com> (raw)
In-Reply-To: <1d8207a7813237f3f1241e0c5a274228@coraid.com>
On Nov 8, 2007 8:33 AM, erik quanstrom <quanstro@coraid.com> wrote:
> > > are 9p mesages really the right vehicle for this? 9p messages
> > > provides a serialized and in a standard byte order. this requires
> > > byte reordering (on intel) and copying. but are these really needed?
> > > the guest and host are on the same platform, so the guest can
> > > pass pointers to the host. for the same reason, integers don't need
> > > reformatting.
> > >
> >
> > 9p is the right organizational structure. The details of marshalling
> > and pass-by-copy versus pass-by-reference are transport issues. Lucho
> > and I have been playing with zero-marhsalling/zero-copy transport
> > variants of 9P for virtualized environments.
> >
> > -eric
>
> perhaps i'm being too pedantic, but 9p is defined by how it marshals data.
You guys lost me. The header fields are in a certain byte order, but
when did the data start being byte-reordered? Have I been missing this
reordering all these years? I sure never implemented it in my code ...
which worked fine between Alpha and x86.
ron
next prev parent reply other threads:[~2007-11-08 16:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-08 7:31 ron minnich
2007-11-08 12:00 ` Richard Miller
2007-11-08 12:55 ` Eric Van Hensbergen
2007-11-08 15:20 ` erik quanstrom
2007-11-08 16:07 ` Latchesar Ionkov
2007-11-08 16:38 ` erik quanstrom
2007-11-08 17:24 ` Latchesar Ionkov
2007-11-08 16:10 ` Eric Van Hensbergen
2007-11-08 16:33 ` erik quanstrom
2007-11-08 16:42 ` ron minnich [this message]
2007-11-08 16:51 ` roger peppe
2007-11-08 13:57 ` erik quanstrom
2007-11-08 19:46 ` Pietro Gagliardi
2007-11-09 1:07 ` dave.l
2007-11-09 4:43 ` Paul Lalonde
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