For larger reach.......
Hi Daniel,
Did you get a chance to check this out ? Please let me know....
On Wednesday, December 21, 2022, Gk Gk <ygk.kmr@xxxxxxxxx> wrote:
> I have just created a new vm and rechecked the disk stats. This time around too, they seem to be different as shown below:
> From libvirt python library:
> ---
> disk_name=sda read_req=10501,read_bytes=263819776,write_req=1933,write_bytes=82269184
> ---
>
> So the write_bytes from above amounted to 78 MB approx.
> But from within the vm :
> ---
> root@sample2:~# iostat -p sda -h
> Linux 4.15.0-101-generic (sample2) 12/21/2022 _x86_64_ (1 CPU)
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 1.9% 0.0% 1.3% 0.4% 0.0% 96.4%
>
> Device tps kB_read/s kB_wrtn/s kB_read kB_wrtn
> sda
> 40.45 643.6k 21.2M 217.5M 7.2G
> sda1
> 40.04 637.6k 21.2M 215.5M 7.2G
> ----
> 7.2 G is far from 78 MB. Am I doing wrong anywhere ? Btw, I did not reboot the new vm this time
>
>
>
> On Wed, Dec 21, 2022 at 9:30 PM Daniel P. Berrangé <berrange@xxxxxxxxxx> wrote:
>>
>> On Wed, Dec 21, 2022 at 09:26:14PM +0530, Gk Gk wrote:
>> > Thanks Daniel for the response.
>> >
>> > I am wondering what exactly is the difference in the process for a soft and
>> > hard reboot in the context of a kvm guest ? Can you throw some light here
>> > please ?
>>
>> KVM will always do a soft reboot, where QEMU keeps running.
>>
>>
>> With regards,
>> Daniel
>> --
>> |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :|
>> |: https://libvirt.org -o- https://fstop138.berrange.com :|
>> |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
>>
>
---------- Forwarded message ---------
From: Gk Gk <ygk.kmr@xxxxxxxxx>
Date: Thu, Dec 22, 2022 at 8:35 AM
Subject: Re: Need help
To: Daniel P. Berrangé <berrange@xxxxxxxxxx>
From: Gk Gk <ygk.kmr@xxxxxxxxx>
Date: Thu, Dec 22, 2022 at 8:35 AM
Subject: Re: Need help
To: Daniel P. Berrangé <berrange@xxxxxxxxxx>
Hi Daniel,
Did you get a chance to check this out ? Please let me know....
On Wednesday, December 21, 2022, Gk Gk <ygk.kmr@xxxxxxxxx> wrote:
> I have just created a new vm and rechecked the disk stats. This time around too, they seem to be different as shown below:
> From libvirt python library:
> ---
> disk_name=sda read_req=10501,read_bytes=263819776,write_req=1933,write_bytes=82269184
> ---
>
> So the write_bytes from above amounted to 78 MB approx.
> But from within the vm :
> ---
> root@sample2:~# iostat -p sda -h
> Linux 4.15.0-101-generic (sample2) 12/21/2022 _x86_64_ (1 CPU)
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 1.9% 0.0% 1.3% 0.4% 0.0% 96.4%
>
> Device tps kB_read/s kB_wrtn/s kB_read kB_wrtn
> sda
> 40.45 643.6k 21.2M 217.5M 7.2G
> sda1
> 40.04 637.6k 21.2M 215.5M 7.2G
> ----
> 7.2 G is far from 78 MB. Am I doing wrong anywhere ? Btw, I did not reboot the new vm this time
>
>
>
> On Wed, Dec 21, 2022 at 9:30 PM Daniel P. Berrangé <berrange@xxxxxxxxxx> wrote:
>>
>> On Wed, Dec 21, 2022 at 09:26:14PM +0530, Gk Gk wrote:
>> > Thanks Daniel for the response.
>> >
>> > I am wondering what exactly is the difference in the process for a soft and
>> > hard reboot in the context of a kvm guest ? Can you throw some light here
>> > please ?
>>
>> KVM will always do a soft reboot, where QEMU keeps running.
>>
>>
>> With regards,
>> Daniel
>> --
>> |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :|
>> |: https://libvirt.org -o- https://fstop138.berrange.com :|
>> |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
>>
>
