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 18:00:20 -0500 [thread overview]
Message-ID: <481F9184.3050902@codemonkey.ws> (raw)
In-Reply-To: <481F90D4.6090507@codemonkey.ws>
Anthony Liguori wrote:
>
> If you explicitly call host_alarm_handler in tap_send(), do you see
> the same improvement? Perhaps your host timer is just very slow?
Oh, it's probably that the signal is causing TCG to be interrupted and
IO to be processed immediately. Moving the select() loop into a
separate thread that sets an atomic whenever it's time to break out of
the TCG loop would be a more general solution.
Regards,
Anthony Liguori
> 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 23:00 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
2008-05-05 23:00 ` Anthony Liguori [this message]
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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