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I'm adding netdev to this thread to see if they can help.
I'm seeing an IPoIB (IP over InfiniBand) netperf performance drop off,
of up to 90 MB/s, when using kernels newer than 2.6.11. This doesn't
appear to be an OpenIB IPoIB issue since the older in-kernel IB for
2.6.11 and a recent svn3687 sna
On Fri, 2005-10-07 at 18:16 -0700, Roland Dreier wrote:
> I wonder if this BIC bug has anything to do with it:
> http://lkml.org/lkml/2005/10/7/230
>
I'm not sure this helps. I'm seeing the performance drop of happen
between 2.6.12-rc4 (470 MB/s) and 2.6.12-rc5 (405 MB/s).
I'll send out my
On Fri, Oct 07, 2005 at 09:33:27AM -0700, Shirley Ma wrote:
> Hi, Troy,
>
> There is INSTALL file in the EHCA driver package.
> In OpenPower 720 port 1 is at the top, port 2 is at the bottom.
> In P570, port1 is at the bottom, port2 is at the top.
Okay, I guess I should read more carefully ;)
Wh
I wonder if this BIC bug has anything to do with it:
http://lkml.org/lkml/2005/10/7/230
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On Fri, 2005-10-07 at 19:57, Sean Hefty wrote:
> Hal Rosenstock wrote:
> > Would an iWARP connection jump across IP subnets ? It would need to
> > determine that it could do this (ala NHRP with ATM). Also, could there
> > be other RDMA networks between them (like IB) ?
>
> if iWarp is on top of TC
Hal Rosenstock wrote:
Would an iWARP connection jump across IP subnets ? It would need to
determine that it could do this (ala NHRP with ATM). Also, could there
be other RDMA networks between them (like IB) ?
if iWarp is on top of TCP, I don't think that it would care about IP subnets.
- Sean
On Fri, 2005-10-07 at 17:30, Sean Hefty wrote:
> Hal Rosenstock wrote:
> >> If the RDMA CM ran a protocol that ensured that data sent from the source
> >> reached the actual destination, then this would make more sense to me. But
> >> the protocol is coming from the client.
> >
> > Wouldn't the g
Hal Rosenstock wrote:
If the RDMA CM ran a protocol that ensured that data sent from the source
reached the actual destination, then this would make more sense to me. But
the protocol is coming from the client.
Wouldn't the gateway/host reject or drop the connection if it couldn't do
what was
On Fri, 2005-10-07 at 17:02, Sean Hefty wrote:
> Hal Rosenstock wrote:
> >>IP is connectionless, so I'm not sure how to relate from IP to the RDMA CM.
> >
> >
> > IP is connectionless but has been implemented on top of connection
> > oriented link layers which may gateway to other connection ori
Hal Rosenstock wrote:
IP is connectionless, so I'm not sure how to relate from IP to the RDMA CM.
IP is connectionless but has been implemented on top of connection
oriented link layers which may gateway to other connection oriented link
layers or non connection oriented link layers. I think i
On Fri, 2005-10-07 at 16:10, Sean Hefty wrote:
> Yaron Haviv wrote:
> > Sean, I believe this is exactly how it is been proposed
> > The gateway is the endpoint in IB, and the IB CM request is done against
> > the gateway, the gateway may decide to create its own connection on the
>
> Yes - I agree
Hi Pradeep,
On Fri, 2005-10-07 at 15:19, Pradeep Satyanarayana wrote:
> I am hoping some one will be able to help me out with a few answers
> saving me some debug time, or having to expend effort on something
> that is already known.
> I was trying to execute mad_test and found that it errors out.
Yaron Haviv wrote:
Sean, I believe this is exactly how it is been proposed
The gateway is the endpoint in IB, and the IB CM request is done against
the gateway, the gateway may decide to create its own connection on the
Yes - I agree with that. I'm referring to the RDMA connection manager, ver
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:openib-general-
> [EMAIL PROTECTED] On Behalf Of Sean Hefty
> Sent: Friday, October 07, 2005 12:40 PM
> To: 'Michael Krause'; Caitlin Bestler
> Cc: Openib
> Subject: RE: [openib-general] [RFC] IB address translation using ARP
>
> >It w
>
> From: Michael Krause [mailto:[EMAIL PROTECTED]
> Sent: Friday, October 07, 2005 12:29 PM
> To: Yaron Haviv
> Cc: Openib
> Subject: RE: [openib-general] [RFC] IB address translation using ARP
>
> At 06:24 AM 9/30/2005, Yaron Haviv wrote:
>
> > -Orig
The following patch adds in a basic RDMA connection management abstraction.
It is functional, but needs additional work for handling device removal, plus
several missing features.
I'd like to merge this back into the trunk, and continue working on it from
there.
This depends on the ib_addr module
I am hoping some one will be able to help me out with a few answers saving me some debug time, or having to expend effort on something that is already known.
I was trying to execute mad_test and found that it errors out. For some reason it does not like the DR Path that I gave it.
1. I ran ibnetd
The following patch adds a simple IP to IB address translation module
using ARP. It is based off AT and SDP, but kept as simple as possible.
I would like to merge this back into the trunk, and apply other changes
there.
Signed-off-by: Sean Hefty <[EMAIL PROTECTED]>
Index: include/rdma/ib_addr.
On Thu, Oct 06, 2005 at 11:01:21PM -0500, Troy Benjegerdes wrote:
> Oh boy is there some reason 'gettimeofday' does not work?
In general, it doesn't work as well.
> Trying to infer timebase/clock/rtsc frequency is going to be a mess.
Using cycle counters is quite portable today and provides
>It would be best to define a CM architecture that enabled communication
>between like endpoints and avoid the gateway dilemma. Let the gateway
>provider work out such issues as there are many requirements already
>on each side of these interconnects.
I've given this some more thought since the o
Hi, Troy,
There is INSTALL file in the EHCA driver
package.
In OpenPower 720 port 1 is at the top,
port 2 is at the bottom.
In P570, port1 is at the bottom, port2
is at the top.
Thanks
Shirley Ma
IBM Linux Technology Center
15300 SW Koll Parkway
Beaverton, OR 97006-6063
Phone(Fax): (503) 578-763
At 06:24 AM 9/30/2005, Yaron Haviv wrote:
> -Original
Message-
> From: Roland Dreier
[
mailto:[EMAIL PROTECTED]]
> Sent: Thursday, September 29, 2005 9:50 PM
> To: Sean Hefty
> Cc: Yaron Haviv; Openib
> Subject: Re: [openib-general] [RFC] IB address translation using
ARP
>
> I think the
At 06:38 AM 9/30/2005, Caitlin Bestler wrote:
> -Original Message-
> From: [EMAIL PROTECTED]
>
[
mailto:[EMAIL PROTECTED]] On Behalf Of Roland
Dreier
> Sent: Thursday, September 29, 2005 6:50 PM
> To: Sean Hefty
> Cc: Openib
> Subject: Re: [openib-general] [RFC] IB address translation
I believe the lower port is port 1. I will defer to the EHCA team as regards to issues with 2.6.13 (if any). We have minimally used both
ports on p570. So, my guess is that should work on a Openpower720.
Pradeep
[EMAIL PROTECTED]
[EMAIL PROTECTED] wrote on 10/07/2005 07:12:07 AM:
> I have two I
Hmm, looks like something in the network stack must have changed.
> 2.6.12 in-kernel1 406
> 2.6.11 in-kernel1 464
This looks like the biggest dropoff. I can think of two things that
would be interesting to do if you or anyone else has time. First,
tak
Matt,
I have seen the same thing. I just didn't relate it to the Kernel. My
IPoIB performance is down to ~340MB/sec
with 2.6.12.1 and svn 3040.
With 2.6.13 and svn 3490 the peak is 402MB/sec.
At 02:06 AM 10/7/2005, Matt Leininger wrote:
I'm seeing an IPoIB netperf performance drop off
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On 07.10.2005 [09:48:56 -0400], Hal Rosenstock wrote:
> On Thu, 2005-10-06 at 15:26, Hal Rosenstock wrote:
> > On Thu, 2005-10-06 at 15:20, Nishanth Aravamudan wrote:
> > > On 06.10.2005 [13:25:35 -0400], Hal Rosenstock wrote:
> > > > On Thu, 2005-10-06 at 13:11, Nishanth Aravamudan wrote:
> > > >
I have two IBM eHCA cards installed and it appears that OpenSM
is happily talking to the firmware and bringing up the links.
So now I'm looking at the install instructions for the ehca2_EHCA2_0025.tgz
code drop, and wondering what (if any) issues there are with a 2.6.13
kernel, or later OpenIB svn
On Thu, 2005-10-06 at 15:26, Hal Rosenstock wrote:
> On Thu, 2005-10-06 at 15:20, Nishanth Aravamudan wrote:
> > On 06.10.2005 [13:25:35 -0400], Hal Rosenstock wrote:
> > > On Thu, 2005-10-06 at 13:11, Nishanth Aravamudan wrote:
> > > > On 06.10.2005 [19:40:40 +0300], Dan Bar Dov wrote:
> > > > > I
On 07.10.2005 [08:21:19 -0400], Hal Rosenstock wrote:
> On Thu, 2005-10-06 at 14:11, Nishanth Aravamudan wrote:
> > On 06.10.2005 [13:25:35 -0400], Hal Rosenstock wrote:
> > > On Thu, 2005-10-06 at 13:11, Nishanth Aravamudan wrote:
> > > > On 06.10.2005 [19:40:40 +0300], Dan Bar Dov wrote:
> > > >
Hi Matt,
On Fri, 2005-10-07 at 04:06, Matt Leininger wrote:
> I'm seeing an IPoIB netperf performance drop off, up to 90 MB/s, when
> using kernels newer than 2.6.11. This doesn't appear to be an OpenIB
> IPoIB issue since the in-kernel and a recent svn3687 snapshot both have
> the same performan
On Thu, 2005-10-06 at 14:11, Nishanth Aravamudan wrote:
> On 06.10.2005 [13:25:35 -0400], Hal Rosenstock wrote:
> > On Thu, 2005-10-06 at 13:11, Nishanth Aravamudan wrote:
> > > On 06.10.2005 [19:40:40 +0300], Dan Bar Dov wrote:
> > > > I've fixed the 2.6.14-rc3 compilation warnings with iSER on x8
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just what everyone is talking about.
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I'm seeing an IPoIB netperf performance drop off, up to 90 MB/s, when
using kernels newer than 2.6.11. This doesn't appear to be an OpenIB
IPoIB issue since the in-kernel and a recent svn3687 snapshot both have
the same performance (464 MB/s) with 2.6.11. I used the same kernel
config file as a s
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