Re: [PATCH RFC 0/5] xprtrdma Send completion batching

Jason Gunthorpe
2017-09-07T15:08:29Z

On Thu, Sep 07, 2017 at 09:17:16AM -0400, Tom Talpey wrote:

> >Why is waiting for the send completion so fundamentally different from
> >waiting for the remote RPC reply?
> >
> >I would say that 99% of time the send completion and RPC reply
> >completion will occure approximately concurrently.
>
> Absolutely not. The RPC reply requires upper layer processing at
> the server, which involves work requests, context switches, file

I should have said '99% of the time the SEND will occure approximately
concurrently or sooner'

Jason