From: Gerd Hoffmann <kraxel@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Alexander Graf <agraf@suse.de>, qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [HACK] hda: expose microphone instead of line-in
Date: Thu, 03 May 2012 14:39:18 +0200 [thread overview]
Message-ID: <4FA27C76.3090204@redhat.com> (raw)
In-Reply-To: <4FA27A24.7050106@siemens.com>
Hi,
>>> I found another workaround: audio hw passthrough. Works nicely. And this
>>> indicates that there should be still some room for improvement in the
>>> device model so that Windows chooses a proper ring buffer size, no?
>>
>> Why? For hw passthrough, mmio doesn't go through qemu anymore, right? :)
>
> The point is that both pt as well as emulation suffer from the same
> issue: lacking real-time support of QEMU. So I guess Windows uses a
> different buffer size for the real hardware than for our HDA model.
What IRQ rate you are seeing?
cheers,
Gerd
next prev parent reply other threads:[~2012-05-03 12:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4F97D9E4.7090608@siemens.com>
[not found] ` <4F97EF39.8080207@redhat.com>
2012-05-02 18:17 ` [Qemu-devel] [HACK] hda: expose microphone instead of line-in Jan Kiszka
2012-05-02 22:42 ` Alexander Graf
2012-05-03 12:29 ` Jan Kiszka
2012-05-03 12:39 ` Gerd Hoffmann [this message]
2012-05-03 12:42 ` Alexander Graf
2012-05-03 13:49 ` Jan Kiszka
2012-05-03 14:15 ` Gerd Hoffmann
2012-05-03 14:30 ` Jan Kiszka
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