Hi, all.
I'm using Qemu with SPDK. When specify option "reconnect=1" for
vhost-user-blk socket, the Qemu will exited with error:
2018-08-17T03:39:21.768809Z qemu-system-x86_64: -device
vhost-user-blk-pci,id=blk0,chardev=char0,num-queues=4: Failed to set msg fds.
On 17/08/2018 04:28, yang.bi...@zte.com.cn wrote:
If there is no backing file or snapshot you still need to fill the>>>cluster with zeroes, and that's going to be slower with
larger>>>clusters. If not fill zeroes and only write guest data ,what`s wrong could>> happen
?>The
>>>If there is no backing file or snapshot you still need to fill the>>>cluster
>>>with zeroes, and that's going to be slower with larger>>>clusters.
>>>If not fill zeroes and only write guest data ,what`s wrong could>>
>>>happen ?>The following could happen:> 1) Guest reads at
I am registering a signal handler per Qemu thread (per VCPU) and
expecting to handle it in that thread context. But I never receive the
signal on the Qemu thread that is causing the event, rather the signal
is sent to parent thread context. Can you please explain the reason
behind this? I also see
Daniel P. Berrangé:
> On Fri, Aug 10, 2018 at 08:33:00PM +, procmem wrote:
>> Hello. I'm a distro maintainer and was wondering about the efficacy of
>> entropy daemons like haveged and jitterentropyd in qemu-kvm. One of the
>> authors of haveged [0] pointed out if the hardware cycles
Martin Kletzander:
> On Fri, Aug 10, 2018 at 08:33:00PM +, procmem wrote:
>> Hello. I'm a distro maintainer and was wondering about the efficacy of
>> entropy daemons like haveged and jitterentropyd in qemu-kvm. One of the
>> authors of haveged [0] pointed out if the hardware cycles counter
Thanks, Thomas!
I understand your point of view and your opinion!
I am sorry!
By the way, when I can to develop JavaQemu again, and to focus on the latest
version of Qemu software, then I will request the information inclusion on the
wiki page of Qemu software again.
Best Regards,Daniel
On Thu 16 Aug 2018 10:20:12 AM CEST, yang.bi...@zte.com.cn wrote:
>>If there is no backing file or snapshot you still need to fill the
>>cluster with zeroes, and that's going to be slower with larger
>>clusters.
>
> If not fill zeroes and only write guest data ,what`s wrong could
> happen
> > > > When use cluster_size=1M qcow2 newly created to test "32k rand
> > > > write" in the VM,We get low performance within VM。But there
> > > > are huge “write” requests in HOST which falls into qemu
> > > > stack of"perform_cow".
> > > The reason why this happens is because clusters are the
Hi,
here I find some QEMU-build in commands:
https://pdos.csail.mit.edu/6.828/2017/labguide.html
I had install default qemu at ubuntu16.04 ,(qemu 2.5.0 monitor),I enter debug
mode like this:
qemu-system-i386 -hda obj/kern/kernel.img -monitor stdio -gdb tcp::26000 -D
qemu.log
after enter
On 08/15/2018 04:22 PM, daniel silva ferreira bruno wrote:
> Hi, staff of QEMU project!
> I am Daniel Silva Ferreira Bruno, creator of the JavaQEMU Open Source
> Software, available at:https://sourceforge.net/projects/javaqemu/.
> JavaQemu is a Graphical User Interface Front End for QEMU, written
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