From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>,
qemu-devel@nongnu.org, Kevin Wolf <kwolf@redhat.com>,
Max Reitz <mreitz@redhat.com>
Subject: Re: [Qemu-devel] [RFC for-2.7] block: keep AioContext pointer in BlockBackend
Date: Tue, 10 May 2016 12:38:17 +0200 [thread overview]
Message-ID: <5731BA19.40503@redhat.com> (raw)
In-Reply-To: <20160510093333.GC11408@stefanha-x1.localdomain>
On 10/05/2016 11:33, Stefan Hajnoczi wrote:
>> >
>> > I'm not sure I agree with #2, as we should move away for the
>> > super-coarse AioContext lock (it is heavyweight and it doesn't play well
>> > with multiqueue). Atomics can be used for statistics, while the
>> > time-based accounting probably should be made optional because it's
>> > heavy-weight and hard to scale.
>> >
>> > But I do agree with #1, so the idea seems good.
> I agree that lightweight options are nicer. Should I resend without #2
> in the commit description?
Well, it _is_ a valid concern until someone does the work. :)
Paolo
next prev parent reply other threads:[~2016-05-10 10:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-11 14:14 [Qemu-devel] [RFC for-2.7] block: keep AioContext pointer in BlockBackend Stefan Hajnoczi
2016-05-09 16:48 ` Paolo Bonzini
2016-05-10 9:33 ` Stefan Hajnoczi
2016-05-10 10:38 ` Paolo Bonzini [this message]
2016-05-11 13:24 ` Stefan Hajnoczi
2016-05-17 10:52 ` Max Reitz
2016-05-17 11:07 ` Paolo Bonzini
2016-05-17 11:14 ` Max Reitz
2016-05-17 11:37 ` Paolo Bonzini
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