From: "Michael S. Tsirkin" <mst@mellanox.co.il>
To: Steve Wise <swise@opengridcomputing.com>
Cc: Roland Dreier <rdreier@cisco.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
openib-general@openib.org
Subject: Re: [PATCH v4 01/13] Linux RDMA Core Changes
Date: Wed, 3 Jan 2007 17:10:16 +0200 [thread overview]
Message-ID: <20070103151015.GQ6019@mellanox.co.il> (raw)
In-Reply-To: <1167836762.4187.15.camel@stevo-desktop>
> > > 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.
So, it's not really activated a lot there.
You want something like IPoIB BW test.
--
MST
next prev parent reply other threads:[~2007-01-03 15:12 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-14 13:52 [PATCH v4 00/13] 2.6.20 Chelsio T3 RDMA Driver Steve Wise
2006-12-14 13:53 ` [PATCH v4 01/13] Linux RDMA Core Changes Steve Wise
2006-12-24 8:49 ` Michael S. Tsirkin
2007-01-03 14:25 ` Steve Wise
2007-01-03 14:41 ` Michael S. Tsirkin
2007-01-03 14:56 ` Steve Wise
2007-01-03 15:00 ` Michael S. Tsirkin
2007-01-03 15:07 ` Steve Wise
2007-01-03 15:18 ` Michael S. Tsirkin
2007-01-03 19:17 ` Steve Wise
2007-01-03 19:33 ` Michael S. Tsirkin
2007-01-03 20:20 ` Steve Wise
2007-01-03 21:22 ` [openib-general] " Steve Wise
2007-01-04 5:07 ` Michael S. Tsirkin
2007-01-04 14:07 ` Steve Wise
2007-01-04 21:34 ` [openib-general] " Roland Dreier
2007-01-04 21:49 ` Steve Wise
2007-01-05 14:22 ` Steve Wise
2007-01-03 15:02 ` Michael S. Tsirkin
2007-01-03 15:06 ` Steve Wise
2007-01-03 15:10 ` Michael S. Tsirkin [this message]
2006-12-14 13:53 ` [PATCH v4 02/13] Device Discovery and ULLD Linkage Steve Wise
2006-12-14 13:54 ` [PATCH v4 03/13] Provider Methods and Data Structures Steve Wise
2006-12-14 13:54 ` [PATCH v4 04/13] Connection Manager Steve Wise
2006-12-14 13:55 ` [PATCH v4 05/13] Queue Pairs Steve Wise
2006-12-14 13:55 ` [PATCH v4 06/13] Completion Queues Steve Wise
2006-12-14 13:56 ` [PATCH v4 07/13] Async Event Handler Steve Wise
2006-12-14 13:56 ` [PATCH v4 08/13] Memory Registration Steve Wise
2006-12-14 13:57 ` [PATCH v4 09/13] Core WQE/CQE Types Steve Wise
2006-12-14 13:57 ` [PATCH v4 10/13] Core HAL Steve Wise
2006-12-14 13:58 ` [PATCH v4 11/13] Core Resource Allocation Steve Wise
2006-12-14 13:58 ` [PATCH v4 12/13] Core Debug functions Steve Wise
2006-12-14 13:59 ` [PATCH v4 13/13] Kconfig/Makefile Steve Wise
2007-01-05 17:32 [openib-general] [PATCH v4 01/13] Linux RDMA Core Changes Felix Marti
2007-01-06 17:34 ` Michael S. Tsirkin
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