[Xen-devel] [PATCH] Fix scheduler parameters of rebooted domain

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

Hi,

When I changed the scheduler parameters of a domain with 
xm sched-credit, the information of xm sched-credit was changed. 
But as for the information of xm list, the values of the domain 
configuration definition were kept. 
And, then I rebooted the domain. The information of xm list was 
not changed. But as for the information of xm sched-credit, the 
values of the domain configuration definition were returned. 

# xm create /xen/PVdomain.1 cpu_cap=150 cpu_weight=512
Using config file "/xen/PVdomain.1".
Started domain PVdomain.1
# xm sched-credit -d PVdomain.1
Name                              ID Weight Cap 
PVdomain.1                         1    512  150
# xm sched-credit -d PVdomain.1 -c 75 -w 384
# xm sched-credit -d PVdomain.1
Name                              ID Weight Cap 
PVdomain.1                         1    384   75
# xm list --long PVdomain.1 | grep cpu_
    (cpu_weight 512)
    (cpu_cap 150)
    (cpu_time 29.353831745)
# xm reboot PVdomain.1
# xm sched-credit -d PVdomain.1
Name                              ID Weight Cap 
PVdomain.1                         2    512  150
# xm list --long PVdomain.1 | grep cpu_
    (cpu_weight 512)
    (cpu_cap 150)
    (cpu_time 5.950247186)


If the scheduler parameters of the domain were changed with 
xm sched-credit, I think that xm list should show the current 
values about the scheduler parameters. 
And, then if the domain is rebooted, I think that the rebooted 
domain should keep the preceding values about the scheduler 
parameters. 

This patch fixes what I thought to be problems.


Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>

Best regards,
 Kan

Attachment: cap_and_weight.patch
Description: Binary data

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