We are having issues with LNET performance over Infiniband. We have a
configuration with a single MDT and six (6) OSTs. The Lustre client I am using
to test is configured to use 6 stripes (lfs setstripe -c 6 /mnt/lustre). When
I perform a test using the following command:
dd
Perhaps someone else here has a thought, but it does not make sense to me that
loading SDP (which accelerates TCP traffic by by-passing the TCP stack) makes
lnet faster if you are using @o2ib, and _not_ @tcp0 for your NIDs.
Any chance you've configured both TCP and O2IB nids on the machine, and
),o2ib1(ib1)
Carl
From: Kevin Van Maren [mailto:kvanma...@fusionio.com]
Sent: Wednesday, February 15, 2012 3:25 PM
To: Barberi, Carl E
Cc: lustre-discuss@lists.Lustre.org
Subject: EXTERNAL: Re: [Lustre-discuss] LNET Performance Issue
Perhaps someone else here has a thought, but it does not make
> lctl list_nids output for MDS:
>
> 172.25.103.1@o2ib
> 172.25.103.1@o2ib1
Is this a typo, o2ib1 should be 172.25.104.1 ?
BR,
Tommi
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Hi, I assume you are using "size=1M" for brw test right? performance could
increase if you set "concurrency" while adding brw test, i.e: --concurrency=16
Liang
On Feb 16, 2012, at 3:30 AM, Barberi, Carl E wrote:
> We are having issues with LNET performance over Infiniband. We have a
> configu
