Re: [Qemu-devel] [4341] qemu: generate signals on tap I/O

[Aurelien Jarno <aurelien@aurel32.net>]

Aurelien Jarno a écrit :
> Anthony Liguori a écrit :
>> Anders wrote:
>>> Aurelien Jarno wrote:
>>>
>>>> That's why I reverted that commit, it was for my local tree only, I
>>>> committed it accidentally (along with a few other patches).
>>> Ah, okay. I only read the subject of your reverts, which did not
>>> mention 4341.
>>>
>>>>> I posted a more complete implementation a few weeks ago, anything wrong
>>>>> with it?
>>>>>
>>>>> http://thread.gmane.org/gmane.comp.emulators.qemu/24567
>>>> People saying it is not the way to go, and I have still haven't decided
>>>> myself if it is a correct solution or not.
>>>>
>>> The current code is also not a correct solution.
>>>
>>> Well, I will just keep it in my local tree.
>> You're seeing improvement with normal QEMU?  Can you please post a
>> description of what you're seeing improve with SIGIO.  SIGIO should
>> really only slow things down.
> 
> I haven't tried Anders' patch, but the patch I accidentally committed
> improved the network speed (tap mode) by a huge factor (I haven't the
> exact factor in mind anymore). I can now easily reach 170 MBps with an
                                                       ^^^^^^^^^^
                                                  oops that is 170 Mbps

> e1000 card on the MIPS Malta target.
> 
> That's why I use that patch in my local tree.
> 


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