Add 'weighted' DRS algorithm, and speed up DRS plan generation - #14111

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bhouse-nexthop wants to merge 18 commits into

apache:mainfrom

bhouse-nexthop:drs-weighted

Commits on Sep 9, 2026

Add a DAO method to count VMs per host
bhouse-nexthop
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d106459
Track a moving average of real host utilisation
bhouse-nexthop
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83cdaf5

Commits on Sep 10, 2026

Add 'balancedweighted' VM allocation algorithm
bhouse-nexthop
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17fd56d
Fix three defects found in review of the weighted scoring
bhouse-nexthop
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f150476
Address the rest of the weighted scoring review
bhouse-nexthop
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726e632
Fix unreachable and NPE-prone branch in host anti-affinity
bhouse-nexthop
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2f73b4a
Honor planned placements in host anti-affinity
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5bc4c7d
Honor planned placements in non-strict host affinity
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3d97d3a
Re-check affinity before executing each DRS migration
bhouse-nexthop
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ec25203
Make the DRS affinity check correct
bhouse-nexthop
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97527a1
Address the rest of the DRS anti-affinity review
bhouse-nexthop
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32f267b
Stop DRS planning from redoing the same work
bhouse-nexthop
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7040b48
Add 'weighted' DRS algorithm
bhouse-nexthop
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ea6bf35
Fix defects found in review of the weighted DRS algorithm
bhouse-nexthop
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a154255
Verify equivalent VMs share one candidate host lookup
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ebc8e74
Declare the host load tracker where both its consumers can see it
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5d7809e
Re-check every migration, not only VMs in an affinity group
bhouse-nexthop
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31539cd
Address review feedback on the weighted allocation algorithm
bhouse-nexthop
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85cc27a