Subject: Re: [PATCH  v4 01/13] Linux RDMA Core Changes
From: Steve Wise <swise@opengridcomputing.com>
To: "Michael S. Tsirkin" <mst@mellanox.co.il>
Cc: Roland Dreier <rdreier@cisco.com>, netdev@vger.kernel.org,
       linux-kernel@vger.kernel.org, openib-general@openib.org
In-Reply-To: <20070103150230.GP6019@mellanox.co.il>
References: <1167836172.4187.9.camel@stevo-desktop>
	 <20070103150230.GP6019@mellanox.co.il>
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Date: Wed, 03 Jan 2007 09:06:02 -0600
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On Wed, 2007-01-03 at 17:02 +0200, Michael S. Tsirkin wrote:
> > I've run this code with mthca and didn't notice any performance
> > degradation, but I wasn't specifically measuring cq_poll overhead in a
> > tight loop...
> 
> We were speaking about ib_req_notify_cq here, actually, not cq poll.
> So what was tested?
> 

Sorry, I meant req_notify.  I didn't specifically measure the cost of
req_notify before and after this change.

I've been running the user mode perftest programs mainly.  


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