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Re: [PATCH 0/6] refactor RDMA live migration based on rsocket API


From: Michael S. Tsirkin
Subject: Re: [PATCH 0/6] refactor RDMA live migration based on rsocket API
Date: Sun, 29 Sep 2024 14:14:08 -0400

On Sat, Sep 28, 2024 at 12:52:08PM -0500, Michael Galaxy wrote:
> A bounce buffer defeats the entire purpose of using RDMA in these cases.
> When using RDMA for very large transfers like this, the goal here is to map
> the entire memory region at once and avoid all CPU interactions (except for
> message management within libibverbs) so that the NIC is doing all of the
> work.
> 
> I'm sure rsocket has its place with much smaller transfer sizes, but this is
> very different.

To clarify, are you actively using rdma based migration in production? Stepping 
up
to help maintain it?

-- 
MST




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