Fwd: Need help
For larger reach.......
---------- Forwarded message ---------
From: Gk Gk <ygk.kmr(a)gmail.com>
Date: Thu, Dec 22, 2022 at 8:35 AM
Subject: Re: Need help
To: Daniel P. Berrangé <berrange(a)redhat.com>
Hi Daniel,
Did you get a chance to check this out ? Please let me know....
On Wednesday, December 21, 2022, Gk Gk <ygk.kmr(a)gmail.com> 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(a)redhat.com>
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 :|
>
Attachments:
- attachment.html (text/html — 3.1 KB)