From: Anthony Liguori <anthony@codemonkey.ws>
To: Aurelien Jarno <aurelien@aurel32.net>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [4341] qemu: generate signals on tap I/O
Date: Mon, 05 May 2008 17:57:24 -0500 [thread overview]
Message-ID: <481F90D4.6090507@codemonkey.ws> (raw)
In-Reply-To: <481F8F74.9010507@aurel32.net>
Aurelien Jarno wrote:
>>> 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
>
If you explicitly call host_alarm_handler in tap_send(), do you see the
same improvement? Perhaps your host timer is just very slow?
Regards,
Anthony Liguori
>> e1000 card on the MIPS Malta target.
>>
>> That's why I use that patch in my local tree.
>>
>>
>
>
>
next prev parent reply other threads:[~2008-05-05 22:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-05 21:26 [Qemu-devel] [4341] qemu: generate signals on tap I/O Aurelien Jarno
2008-05-05 22:06 ` Anders
2008-05-05 22:15 ` Aurelien Jarno
2008-05-05 22:42 ` Anders
2008-05-05 22:44 ` Anthony Liguori
2008-05-05 22:49 ` Aurelien Jarno
2008-05-05 22:51 ` Aurelien Jarno
2008-05-05 22:57 ` Anthony Liguori [this message]
2008-05-05 23:00 ` Anthony Liguori
2008-05-05 23:12 ` Anders
2008-05-06 2:48 ` Anthony Liguori
2008-05-06 8:35 ` Anders
2008-05-05 22:50 ` Anthony Liguori
2008-05-05 22:43 ` Anthony Liguori
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