[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] Re: [PATCH 0/7] KVM SMP support, early version

From: Glauber Costa
Subject: Re: [Qemu-devel] Re: [PATCH 0/7] KVM SMP support, early version
Date: Mon, 30 Nov 2009 09:42:42 -0200

On Sun, Nov 29, 2009 at 3:32 PM, Jan Kiszka <address@hidden> wrote:
> Glauber Costa wrote:
>> Hi guys,
>> This is an early version of smp support in kvm that kinda works.
>> It has some known problems that I am still tracking. For example,
>> it does not reset very well. Also, initialization is a bit slow,
>> probably because of the number of remote ioctl calls involved.
>> But I believe Jan's patch to do a single ioctl can make it better.
> That approach has been buried, we decided to continue extending via new
> ioctls.
> But why do you need that many remote calls during init? Aren't the
> initial ioctls issued by the vcpu threads themselves?

Yes, but system_reset is called from the io-thread, and it fires a lot
of ioctls.

However, I have an already working version that does a much better job
than that.
Will post today with details

Glauber  Costa.
"Free as in Freedom"

"The less confident you are, the more serious you have to act."

reply via email to

[Prev in Thread] Current Thread [Next in Thread]