Comments (12)
Does this feature look like equivelance class cache
which is removed in v1.23?
from kubernetes.
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/sig node
from kubernetes.
Which component do you want to implement this functionality in, is it the schdeuler? And If podAffinity is present, the distribution of pods in the deployment will be affected.
from kubernetes.
even through same type of pods in same workload, if set volume
or TopologySpreadConstraint
, then pass through the filter of plugins such as resource
, affinity
, feasible nodes should be a big difference
from kubernetes.
/sig scheduling
Sorry, I didn't look into the details. As your purpose is to accelerating predicate, this belongs to sig-scheduling.
I think I can understand some of what you're trying to do.
For example, if we have a deployment with required nodeAffinity.
Then maybe we can store a affinity->node mapping, and then we can skip preFilter
of nodeAffinity
plugin for other pods in the same deployment.
However, the maintaining of this cache will also increase the burden on the scheduler, and brings additional complexity to the framework.
If you have implemented this somewhere, then maybe the results of a benchmark will be very convincing.
from kubernetes.
And If podAffinity is present, the distribution of pods in the deployment will be affected.
all pods in a deployment have same predicate condition, include podAffinity, right?
from kubernetes.
plugins such as
resource
,affinity
, feasible nodes should be a big difference
Resource
should be re-considered, of couse.
from kubernetes.
However, the maintaining of this cache will also increase the burden on the scheduler, and brings additional complexity to the framework.
Yes, it is a heavy work. I just throw out this question and we can discuss it.
If you have implemented this somewhere, then maybe the results of a benchmark will be very convincing.
Some other schedulers based on kubernetes have this feature.
I will try to run a benchmarck if I can.
from kubernetes.
Some other schedulers based on kubernetes have this feature.
Can you paste a reference here? :)
from kubernetes.
Some other schedulers based on kubernetes have this feature.
Can you paste a reference here? :)
such as the godel-scheduler in bytedance's recent paper described.
and volcano has add it in volcano-sh/volcano#1165.
from kubernetes.
equivelance class cache
Yes, seem it has been discussed in
#17390,
#71013
#65714
removed in #71399
from kubernetes.
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from kubernetes.