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

[Aurelien Jarno <aurelien@aurel32.net>]

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
e1000 card on the MIPS Malta target.

That's why I use that patch in my local tree.

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