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From: Jason Gunthorpe <jgg@nvidia.com>
To: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Cc: Leon Romanovsky <leon@kernel.org>,
	"Marciniszyn, Mike" <mike.marciniszyn@cornelisnetworks.com>,
	Doug Ledford <dledford@redhat.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>
Subject: Re: [PATCH rdma-next] RDMA/rdmavt: Decouple QP and SGE lists allocations
Date: Thu, 13 May 2021 16:15:51 -0300	[thread overview]
Message-ID: <20210513191551.GT1002214@nvidia.com> (raw)
In-Reply-To: <7e7c411b-572b-6080-e991-deb324e3d0e2@cornelisnetworks.com>

On Thu, May 13, 2021 at 03:03:43PM -0400, Dennis Dalessandro wrote:
> On 5/12/21 8:50 AM, Leon Romanovsky wrote:
> > On Wed, May 12, 2021 at 12:25:15PM +0000, Marciniszyn, Mike wrote:
> > > > > Thanks Leon, we'll get this put through our testing.
> > > > 
> > > > Thanks a lot.
> > > > 
> > > > > 
> > > 
> > > The patch as is passed all our functional testing.
> > 
> > Thanks Mike,
> > 
> > Can I ask you to perform a performance comparison between this patch and
> > the following?
> 
> We have years of performance data with the code the way it is. Please
> maintain the original functionality of the code when moving things into the
> core unless there is a compelling reason to change. That is not the case
> here.

Well, making the core do node allocations for metadata on every driver
is a pretty big thing to ask for with no data.

Jason

  reply	other threads:[~2021-05-13 19:15 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-11 10:36 [PATCH rdma-next] RDMA/rdmavt: Decouple QP and SGE lists allocations Leon Romanovsky
2021-05-11 10:59 ` Haakon Bugge
2021-05-11 12:34   ` Leon Romanovsky
2021-05-11 19:15     ` Marciniszyn, Mike
2021-05-11 19:27       ` Leon Romanovsky
2021-05-11 19:39         ` Marciniszyn, Mike
2021-05-12  4:08         ` Dennis Dalessandro
2021-05-12 12:13           ` Leon Romanovsky
2021-05-12 12:45             ` Dennis Dalessandro
2021-05-11 12:26 ` Dennis Dalessandro
2021-05-11 12:34   ` Leon Romanovsky
2021-05-12 12:25     ` Marciniszyn, Mike
2021-05-12 12:50       ` Leon Romanovsky
2021-05-13 19:03         ` Dennis Dalessandro
2021-05-13 19:15           ` Jason Gunthorpe [this message]
2021-05-13 19:31             ` Dennis Dalessandro
2021-05-14 13:02               ` Jason Gunthorpe
2021-05-14 14:07                 ` Dennis Dalessandro
2021-05-14 14:35                   ` Jason Gunthorpe
2021-05-14 15:00                     ` Marciniszyn, Mike
2021-05-14 15:02                       ` Jason Gunthorpe
2021-05-19  7:50                         ` Leon Romanovsky
2021-05-19 11:56                           ` Dennis Dalessandro
2021-05-19 18:29                             ` Jason Gunthorpe
2021-05-19 19:49                               ` Dennis Dalessandro
2021-05-19 20:26                                 ` Jason Gunthorpe
2021-05-20 22:02                                   ` Dennis Dalessandro
2021-05-21  6:29                                     ` Leon Romanovsky
2021-05-25 13:13                                     ` Jason Gunthorpe
2021-05-25 14:10                                       ` Dennis Dalessandro
2021-05-25 14:20                                         ` Jason Gunthorpe
2021-05-25 14:29                                           ` Dennis Dalessandro
2021-06-28 21:59                                           ` Marciniszyn, Mike
2021-06-28 23:19                                             ` Jason Gunthorpe
2021-07-04  6:34                                               ` Leon Romanovsky
2021-06-02  4:33                                         ` Leon Romanovsky
2021-05-16 10:56           ` Leon Romanovsky
2021-05-12 12:23 ` Marciniszyn, Mike

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