From: Jason Gunthorpe <jgg@ziepe.ca>
To: Terry Toole <toole@photodiagnostic.com>
Cc: linux-rdma@vger.kernel.org
Subject: Re: Is it possible to transfer a large file between two computers using RDMA UD?
Date: Thu, 2 Jan 2020 14:29:37 -0400 [thread overview]
Message-ID: <20200102182937.GG9282@ziepe.ca> (raw)
In-Reply-To: <CADw-U9BHcoHy3WJ8iSdYjAw3RxQf2vhkOKyL7k0yJdR3mP7Mug@mail.gmail.com>
On Thu, Jan 02, 2020 at 09:47:06AM -0500, Terry Toole wrote:
> Hi,
> Is it possible to transfer a large file, say 25GB, between two computers using
> RDMA UD, and have an exact copy of the original file on the receiving side? My
> understanding is that the order of the messages is not guaranteed with UD.
> But I thought that if I only use one QP I could ensure that the ordering of the
> data will be predictable.
It is not guaranteed to be in order.
Why would you do this anyhow? The overhead to use RC is pretty small
Jason
next prev parent reply other threads:[~2020-01-02 18:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-02 14:47 Is it possible to transfer a large file between two computers using RDMA UD? Terry Toole
2020-01-02 18:29 ` Jason Gunthorpe [this message]
2020-01-02 19:11 ` Terry Toole
2020-01-02 19:25 ` Hefty, Sean
2020-01-02 19:31 ` Jason Gunthorpe
2020-01-02 19:45 ` Terry Toole
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