[Xen-users] SEDF default parameters.

["Devdutt Patnaik" <xendevid@xxxxxxxxx>]

Hi All,

I changed the scheduler in my xen installation to sedf, from the default credit based scheduler.

When I do an xm sched-sedf I see :

Name                              ID Period(ms) Slice(ms) Lat(ms) Extra Weight
Domain-0                          -1      -0.0      -0.0    -0.0     -1     -1
vm01                              -1      -0.0      -0.0    -0.0     -1     -1
vm02                              -1      -0.0      -0.0    -0.0     -1     -1
vm03                              -1      -0.0      -0.0    -0.0     -1     -1
vm04                              -1      -0.0      -0.0    -0.0     -1     -1
vm05                              -1      -0.0      -0.0    -0.0     -1     
 -1
vm06                              -1      -0.0      -0.0    -0.0     -1     -1

Also a separate query for Dom0 returns :

#xm sched-sedf Domain-0
Name                              ID Period(ms) Slice(ms) Lat(ms) Extra Weight
Domain-0                          -1      -0.0      -0.0    -0.0     -1     -1

Arent there some default parameters that the sedf scheduler uses when it is first used ?
The credit based one had a default weight of 256 for all VMs. Whats the case with SEDF ?
What would happen if I were to use these settings as is ?

Thanks,
Devdutt.
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