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Re: [Qemu-devel] [RFC 0/9] QContext: QOM class to support multiple event

From: Anthony Liguori
Subject: Re: [Qemu-devel] [RFC 0/9] QContext: QOM class to support multiple event loops
Date: Mon, 06 May 2013 07:25:24 -0500
User-agent: Notmuch/0.15.2+77~g661dcf8 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu)

Paolo Bonzini <address@hidden> writes:

> Il 03/05/2013 18:03, Michael Roth ha scritto:
>> These patches apply on top of qemu.git master, and can also be obtained from:
>> git://github.com/mdroth/qemu.git qcontext
>> This series introduces a set of QOM classes/interfaces for event
>> registration/handling: QContext and QSource, which are based closely on
>> their GMainContext/GSource GLib counterparts.
>> QContexts can be created via the command-line via -object, and can also be
>> intructed (via -object params/properties) to automatically start a
>> thread/event-loop to handle QSources we attach to them.
> This is an awesome idea.


> However, it seems a bit overengineered.


>  Why do we need QSource at all?
>  In my opinion, we should first change dataplane to use AioContext as a
> GSource, and benchmark it thoroughly.  If it is fast enough, we can
> "just" introduce a glib-based QContext and be done with it.  Hopefully
> that is the case...

Why even bother with QContext then?


Anthony Liguori

> Paolo

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