From: Til Obes <til@obes.name>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Performance of USB2.0
Date: Thu, 05 Jan 2012 17:29:37 +0100 [thread overview]
Message-ID: <je4j5o$at3$1@dough.gmane.org> (raw)
In-Reply-To: <4EAFBDBF.3070109@redhat.com>
Hello.
Am 01.11.2011 10:37, schrieb Gerd Hoffmann:
> I think the main issue here is that we don't do buffering / pipelining
> for bulk transfers at the moment. We grab a single transfer request
> from the guest, pass it to the kernel, when it is done pass it back to
> the guest, then look look for the next one. Instead we could queue up
> all transfer requests from the guest to the kernel, which would give a
> noticable better throughput. The qemu usb subsystem can't handle that
> (yet). Fixing that is one the TODO list though.
Any news about this topic?
Regards Til
prev parent reply other threads:[~2012-01-05 16:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-31 9:27 [Qemu-devel] Performance of USB2.0 Til Obes
2011-10-31 12:46 ` Hans de Goede
2011-10-31 13:37 ` Til Obes
2011-10-31 15:22 ` Hans de Goede
2011-11-01 9:37 ` Gerd Hoffmann
2011-11-01 13:42 ` Til Obes
2012-01-05 16:29 ` Til Obes [this message]
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