[ofa-general] MTHCA driver from OFED 1.3a package

[Alex Tabachnik]

----- Original Message ----- 
From: "David Boehme" <dboehme at cs.uni-potsdam.de>
To: <general at lists.openfabrics.org>
Sent: Tuesday, December 18, 2007 10:15 PM
Subject: Re: [ofa-general] MTHCA driver from OFED 1.3a package


> On Dienstag 27 November 2007, Tziporet Koren wrote:
>> Lukas Hejtmanek wrote:
>> > Hello,
>> >
>> > just found, that OFED 1.3a with 2.6.23 kernel runs at 2/3 speed
>> > compared to 2.6.23 kernel with built in driver. Any reason for this?
>>
>> Which benchmark?
>> Which HCA?
>> Is it the same with ofed beta release?
>
> Hi,
>
> I'd like to note that this performance problem seems still to exist in 
> OFED
> 1.3rc1.
>
> On our testing environment (2 Hosts, Xeon 3040, Mellanox MT25208 HCA) with
> OFED 1.3rc1 on Fedora 8/Kernel 2.6.23.9-rc1, ib_rdma_bw yields a bandwidth
> of 658 MB/sec with a one megabyte message size. Other benchmarks show
> similar results.
>
> David
>
Hi,
I've checked this issue on 4 x Intel(R) Xeon(R) CPU 5130 @ 2.00GHz
with
SLES10
MT25208 HCA
FW 4.8.200
OFED 1.3-20071211-0600
and I got 935.68 MBps.

Alex

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