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From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <17a6b61c-e151-a5e1-978a-b54da71dbe55@redhat.com>
Date: Thu, 11 Jan 2018 14:22:25 +0100
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Subject: Re: [Qemu-devel] [RFC PATCH v3 29/30] replay: improve replay
 performance
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To: Pavel Dovgalyuk <dovgaluk@ispras.ru>, 'Pavel Dovgalyuk' <Pavel.Dovgaluk@ispras.ru>, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, peter.maydell@linaro.org, boost.lists@gmail.com, quintela@redhat.com, jasowang@redhat.com, mst@redhat.com, zuban32s@gmail.com, maria.klimushenkova@ispras.ru, kraxel@redhat.com, alex.bennee@linaro.org

On 11/01/2018 14:12, Pavel Dovgalyuk wrote:
>> From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of Paolo Bonzini
>> On 11/01/2018 09:27, Pavel Dovgalyuk wrote:
>>> +        } else {
>>> +            qemu_notify_event();
>>> +        }
>>
>> Before this patch, what would do the qemu_notify_event?
> 
> We tried using qemu_notify_event to wake up the iothread and speedup the replay,
> when there is no work for vcpu thread to do.

But why doesn't the iothread wake up on its own?

Paolo