From: Avi Kivity <avi@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Ben Clay <rbclay@ncsu.edu>, kvm@vger.kernel.org
Subject: Re: FW: cgroup blkio.weight working, but not for KVM guests
Date: Thu, 25 Oct 2012 19:13:27 +0200 [thread overview]
Message-ID: <50897337.30902@redhat.com> (raw)
In-Reply-To: <20121024061056.GA2904@stefanha-thinkpad.redhat.com>
On 10/24/2012 08:10 AM, Stefan Hajnoczi wrote:
> 1. For aio=native QEMU uses the Linux AIO API. I think this results in
> kernel threads that process I/O on behalf of the userspace process.
No, the request is submitted directly from io_submit(), and completion
sets the eventfd from irq context. Usually no threads are involved.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2012-10-25 17:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <022401cdac8d$32565fa0$97031ee0$@ncsu.edu>
2012-10-22 13:36 ` FW: cgroup blkio.weight working, but not for KVM guests Ben Clay
2012-10-23 12:35 ` Stefan Hajnoczi
2012-10-23 22:48 ` Ben Clay
2012-10-24 6:10 ` Stefan Hajnoczi
2012-10-25 17:13 ` Avi Kivity [this message]
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