From: Steve Lord <lord@xfs.org>
To: "Mukker, Atul" <Atulm@lsil.com>
Cc: "'Andi Kleen'" <ak@muc.de>,
"'Marcelo Tosatti'" <marcelo.tosatti@cyclades.com>,
"'Mel Gorman'" <mel@csn.ul.ie>,
"'William Lee Irwin III'" <wli@holomorphy.com>,
"'Linux Memory Management List'" <linux-mm@kvack.org>,
"'Linux Kernel'" <linux-kernel@vger.kernel.org>,
"'Grant Grundler'" <grundler@parisc-linux.org>
Subject: Re: [PATCH] Avoiding fragmentation through different allocator
Date: Tue, 25 Jan 2005 08:17:56 -0600 [thread overview]
Message-ID: <41F65514.3040707@xfs.org> (raw)
In-Reply-To: <0E3FA95632D6D047BA649F95DAB60E5705A70E61@exa-atlanta>
Mukker, Atul wrote:
>
> LSI would leave no stone unturned to make the performance better for
> megaraid controllers under Linux. If you have some hard data in relation to
> comparison of performance for adapters from other vendors, please share with
> us. We would definitely strive to better it.
>
> The megaraid driver is open source, do you see anything that driver can do
> to improve performance. We would greatly appreciate any feedback in this
> regard and definitely incorporate in the driver. The FW under Linux and
> windows is same, so I do not see how the megaraid stack should perform
> differently under Linux and windows?
It is not the driver per se, but the way the memory which is the I/O
source/target is presented to the driver. In linux there is a good
chance it will have to use more scatter gather elements to represent
the same amount of data.
Steve
WARNING: multiple messages have this Message-ID (diff)
From: Steve Lord <lord@xfs.org>
To: "Mukker, Atul" <Atulm@lsil.com>
Cc: 'Andi Kleen' <ak@muc.de>,
'Marcelo Tosatti' <marcelo.tosatti@cyclades.com>,
'Mel Gorman' <mel@csn.ul.ie>,
'William Lee Irwin III' <wli@holomorphy.com>,
'Linux Memory Management List' <linux-mm@kvack.org>,
'Linux Kernel' <linux-kernel@vger.kernel.org>,
'Grant Grundler' <grundler@parisc-linux.org>
Subject: Re: [PATCH] Avoiding fragmentation through different allocator
Date: Tue, 25 Jan 2005 08:17:56 -0600 [thread overview]
Message-ID: <41F65514.3040707@xfs.org> (raw)
In-Reply-To: <0E3FA95632D6D047BA649F95DAB60E5705A70E61@exa-atlanta>
Mukker, Atul wrote:
>
> LSI would leave no stone unturned to make the performance better for
> megaraid controllers under Linux. If you have some hard data in relation to
> comparison of performance for adapters from other vendors, please share with
> us. We would definitely strive to better it.
>
> The megaraid driver is open source, do you see anything that driver can do
> to improve performance. We would greatly appreciate any feedback in this
> regard and definitely incorporate in the driver. The FW under Linux and
> windows is same, so I do not see how the megaraid stack should perform
> differently under Linux and windows?
It is not the driver per se, but the way the memory which is the I/O
source/target is presented to the driver. In linux there is a good
chance it will have to use more scatter gather elements to represent
the same amount of data.
Steve
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next prev parent reply other threads:[~2005-01-25 14:18 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-25 14:02 [PATCH] Avoiding fragmentation through different allocator Mukker, Atul
2005-01-25 14:02 ` Mukker, Atul
2005-01-25 14:17 ` Steve Lord [this message]
2005-01-25 14:17 ` Steve Lord
2005-01-25 14:27 ` Christoph Hellwig
2005-01-25 14:27 ` Christoph Hellwig
2005-01-25 14:49 ` Andi Kleen
2005-01-25 14:49 ` Andi Kleen
2005-01-25 14:56 ` Andi Kleen
2005-01-25 14:56 ` Andi Kleen
2005-01-25 16:12 ` Mel Gorman
2005-01-25 16:12 ` Mel Gorman
2005-01-25 18:50 ` Grant Grundler
2005-01-25 18:50 ` Grant Grundler
-- strict thread matches above, loose matches on Subject: below --
2005-01-20 10:13 Mel Gorman
2005-01-20 10:13 ` Mel Gorman
2005-01-21 14:28 ` Marcelo Tosatti
2005-01-21 14:28 ` Marcelo Tosatti
2005-01-22 21:48 ` Mel Gorman
2005-01-22 21:48 ` Mel Gorman
2005-01-22 21:59 ` Marcelo Tosatti
2005-01-22 21:59 ` Marcelo Tosatti
2005-01-23 13:28 ` Marcelo Tosatti
2005-01-23 13:28 ` Marcelo Tosatti
2005-01-24 13:28 ` Mel Gorman
2005-01-24 13:28 ` Mel Gorman
2005-01-24 12:29 ` Marcelo Tosatti
2005-01-24 12:29 ` Marcelo Tosatti
2005-01-24 16:44 ` James Bottomley
2005-01-24 16:44 ` James Bottomley
2005-01-24 15:49 ` Marcelo Tosatti
2005-01-24 15:49 ` Marcelo Tosatti
2005-01-24 20:36 ` James Bottomley
2005-01-24 20:36 ` James Bottomley
2005-01-24 20:47 ` Steve Lord
2005-01-24 20:47 ` Steve Lord
2005-01-25 7:39 ` Andi Kleen
2005-01-25 7:39 ` Andi Kleen
2005-01-24 19:55 ` Grant Grundler
2005-01-24 19:55 ` Grant Grundler
2005-01-20 10:12 Mel Gorman
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