[Click] Enabling multiple transmit queues and polling

[Joonwoo Park]

Yes, using FromDevice would be performance hurt.
If you need PollDevice, you may need to stick with 2.6.24 without
multi queue for now.

Joonwoo.

On Fri, Mar 25, 2011 at 1:17 PM, David Zats <dzats at eecs.berkeley.edu> wrote:
> But wouldn't we take a large performance hit using FromDevice instead of PollDevice?
> Thanks!
> David
>
> On Mar 25, 2011, at 1:00 PM, Joonwoo Park wrote:
>
>> Hi David,
>>
>> As patchess linux doesn't support PollDevice for now, you cannot use
>> it with patchless linux.
>> So you don't need to patch e1000e driver either and have to use
>> FromDevice instead.
>>
>> Here is a similar post that I did yesterday.
>> http://www.mail-archive.com/click@amsterdam.lcs.mit.edu/msg04824.html
>>
>> Regards,
>> Joonwoo.
>>
>> On Fri, Mar 25, 2011 at 12:36 PM, David Zats <dzats at eecs.berkeley.edu> wrote:
>>> Hi,
>>> We would like to leverage the multiple transmit/receive queues that our Intel 82571EB NIC provides and to use it in polling mode. From what we can tell, the 2.6.24.7 Linux kernel does not support multiple queues. At the same time, if we use a newer kernel in pathless mode, the latest patched driver (e1000e-0.4.1.7) won't compile. Would it be possible to find out the combination of kernel and driver version to use to obtain both benefits?
>>> Thanks!
>>> David Zats
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>>> click at amsterdam.lcs.mit.edu
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>>>
>
>