From: Roland Dreier <rdreier@cisco.com>
To: "Sean Hefty" <sean.hefty@intel.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
general@lists.openfabrics.org
Subject: Re: [ofa-general] InfiniBand/RDMA merge plans for 2.6.24
Date: Tue, 02 Oct 2007 11:26:53 -0700 [thread overview]
Message-ID: <adaprzxgyoi.fsf@cisco.com> (raw)
In-Reply-To: <000001c7f6f7$074584e0$9c98070a@amr.corp.intel.com> (Sean Hefty's message of "Fri, 14 Sep 2007 10:45:23 -0700")
> >OK -- just to make sure I'm understanding what you're saying: have you
> >confirmed that your proposed [CM MRA] patches actually fix the issue?
>
> Not directly. I cannot easily test kernel patches on our larger, production
> clusters. We've seen the issue with specific applications on 512 and 1024
> cores, but I've only been able to test the patch on a 48-core cluster. I have
> verified that it successfully increases the timeout to where it *should* work,
> but cannot absolutely confirm that it will fix the problem. I'm unlikely to
> know that until the production clusters move to an OFED release (1.3?)
> containing this patch.
Umm... this is a difficult situation for me to merge the changes then.
We're changing the CM retry behavior blind here. How do we know that
the MRA changes don't make the scalability issue worse?
- R.
next prev parent reply other threads:[~2007-10-02 18:26 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-13 17:57 InfiniBand/RDMA merge plans for 2.6.24 Roland Dreier
2007-09-13 18:04 ` [ofa-general] " Steve Wise
2007-09-13 18:56 ` Jeff Garzik
2007-09-13 18:59 ` Steve Wise
2007-09-13 19:55 ` Jeff Garzik
2007-09-14 12:55 ` Evgeniy Polyakov
2007-09-13 21:12 ` Roland Dreier
2007-09-13 21:11 ` Roland Dreier
2007-09-13 22:59 ` Michael Chan
2007-09-14 16:18 ` Roland Dreier
2007-09-14 21:09 ` Michael Chan
2007-09-15 14:03 ` Steve Wise
2007-09-13 18:20 ` Sean Hefty
2007-09-13 21:02 ` Roland Dreier
2007-09-14 17:45 ` Sean Hefty
2007-10-02 18:26 ` Roland Dreier [this message]
2007-10-02 18:50 ` Sean Hefty
2007-10-05 23:10 ` Roland Dreier
2007-09-17 13:00 ` Hal Rosenstock
2007-09-18 9:48 ` Tziporet Koren
2007-09-13 18:22 ` Shirley Ma
2007-09-13 21:00 ` Roland Dreier
2007-09-13 22:16 ` [ofa-general] " Shirley Ma
2007-09-14 16:09 ` Roland Dreier
2007-09-14 18:36 ` Shirley Ma
2007-09-17 21:47 ` [ofa-general] " Roland Dreier
2007-09-17 22:24 ` Shirley Ma
2007-10-03 18:43 ` Shirley Ma
2007-09-16 8:50 ` [ofa-general] " Or Gerlitz
2007-09-17 22:11 ` Roland Dreier
2007-09-18 7:09 ` Jack Morgenstein
2007-09-19 6:19 ` [ofa-general] " Michael S. Tsirkin
2007-09-18 16:34 ` Michael S. Tsirkin
2007-09-18 17:18 ` Roland Dreier
2007-09-18 17:22 ` Michael S. Tsirkin
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