Hi all,
I tried to attach a ssh json backing image but failed:
# qemu-img create -f qcow2 -b 'json:{"file.driver":"ssh",
"file.host":"10.66.4.129", "file.path":"/tmp/ssh", "file.user":"root",
"file.port":22, "file.host_key_check":"no"}' /var/lib/libvirt/images/ssh.img
Formatting '/var/lib/libvirt
Sure.
El 17/08/16 a les 23:09, Andrew Martin ha escrit:
> - Original Message -
>> From: "Narcis Garcia"
>> To: qemu-discuss@nongnu.org
>> Sent: Wednesday, August 17, 2016 1:16:19 PM
>> Subject: Re: [Qemu-discuss] Understanding QEMU Cache Modes and Emulated Disk
>> Write Cache
>>
>> In t
- Original Message -
> From: "Narcis Garcia"
> To: qemu-discuss@nongnu.org
> Sent: Wednesday, August 17, 2016 1:16:19 PM
> Subject: Re: [Qemu-discuss] Understanding QEMU Cache Modes and Emulated Disk
> Write Cache
>
> In the host:
> $ sysctl -n vm.dirty_expire_centisecs
> $ sysctl -n vm.
In the host:
$ sysctl -n vm.dirty_expire_centisecs
$ sysctl -n vm.dirty_writeback_centisecs
https://www.kernel.org/doc/Documentation/sysctl/vm.txt
El 17/08/16 a les 20:03, Andrew Martin ha escrit:
> - Original Message -
>> From: "Jakob Bohm"
>> To: "Andrew Martin"
>> Cc: qemu-discuss@
- Original Message -
> From: "Jakob Bohm"
> To: "Andrew Martin"
> Cc: qemu-discuss@nongnu.org
> Sent: Wednesday, August 17, 2016 10:32:39 AM
> Subject: Re: [Qemu-discuss] Understanding QEMU Cache Modes and Emulated Disk
> Write Cache
>
> On 17/08/2016 16:56, Andrew Martin wrote:
> >
> >
2016-08-17 19:46, Laurentiu Soica rašė:
The baremetal and compute are both running CentOS 7 and on the
baremetal I've enabled nested KVM feature.
Kernel is 3.10.0-327.22.2.el7.x86_64
qemu-kvm is 1.5.3-105.el7_2.7
It is quite old. I would use a newer one, for example, qemu-kvm-ev
from
https://l
Hello,
I have an openstack setup with KVM as hipervisor in virtual environment.
So:
- a baremetal with 2 physical CPUs: 128 GB RAM
- the compute node, that is a VM under KVM on the baremetal, with 100
GB RAM and 36 vCPUs
- 15 VMs running inside the compute node, under KVM aswell.
The baremetal a
On 17/08/2016 16:56, Andrew Martin wrote:
- Original Message -
From: "Jakob Bohm"
To: qemu-discuss@nongnu.org
Sent: Wednesday, August 17, 2016 9:34:32 AM
Subject: Re: [Qemu-discuss] Understanding QEMU Cache Modes and Emulated Disk
Write Cache
On 17/08/2016 15:21, Andrew Martin wrote
- Original Message -
> From: "Jakob Bohm"
> To: qemu-discuss@nongnu.org
> Sent: Wednesday, August 17, 2016 9:34:32 AM
> Subject: Re: [Qemu-discuss] Understanding QEMU Cache Modes and Emulated Disk
> Write Cache
>
> On 17/08/2016 15:21, Andrew Martin wrote:
> >> From: "Fam Zheng"
> >>
On 17/08/2016 15:21, Andrew Martin wrote:
From: "Fam Zheng"
To: "Andrew Martin"
Cc: qemu-discuss@nongnu.org
Sent: Wednesday, August 17, 2016 2:50:36 AM
Subject: Re: [Qemu-discuss] Understanding QEMU Cache Modes and Emulated Disk
Write Cache
On Tue, 08/16 12:39, Andrew Martin wrote:
Hello,
I
Dominique, thank you for your assistance. Sadly, this is still not working.
Maybe there's a better version of the QEMU-GA available for QEMU Windows guests
on Ubuntu 14.04LTS?
I've verified that the service is set to start and is not disabled in msconfig.
It won't start on startup or even if I
Hi there,
This is a very interesting discussion in which I was reminded on the different
cache modes.
I have a supplementary question dough.
Sometimes if I change the cache mode of a guest system disk, the guest won't
work
properly (it hangs, crashes,...). Never yet with a nix system but It h
- Original Message -
> From: "Fam Zheng"
> To: "Andrew Martin"
> Cc: qemu-discuss@nongnu.org
> Sent: Wednesday, August 17, 2016 2:50:36 AM
> Subject: Re: [Qemu-discuss] Understanding QEMU Cache Modes and Emulated Disk
> Write Cache
>
> On Tue, 08/16 12:39, Andrew Martin wrote:
> > Hel
On Wed, 08/17 17:26, wyang wrote:
> On 2016年08月17日 15:50, Fam Zheng wrote:
> >
> >I am confused about the difference between the guest disk write cache and the
> >host page cache. Aren't these effectively the same (in both cases storing the
> >dirty data in the host's RAM)? Is there a difference be
On 2016年08月17日 15:50, Fam Zheng wrote:
I am confused about the difference between the guest disk write cache and the
host page cache. Aren't these effectively the same (in both cases storing the
dirty data in the host's RAM)? Is there a difference between how one gets
Yes they are the same thing
On Wed, Aug 17, 2016 at 09:43:10AM +0530, Gadre Nayan wrote:
> Ok. so I will then shift to using system tap, Are the timestamps
> generated for events compatible with the ftrace timestamps? so that I
> can still merge the traces using TSC_OFFSET.
I'm not sure what timestamps exactl you're using wi
On Tue, 08/16 12:39, Andrew Martin wrote:
> Hello,
>
> I am running QEMU 2.5 on Ubuntu 16.04. My guests are a mixture of Linux
> (Ubuntu
> 12.04 and newer with ext4) and Windows. The guest qcow2 images are stored in
> a
> ZFS filesystem with sync=standard (on top of a mirrored vdev of SSDs) on
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