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| author | Zuul <zuul@review.opendev.org> | 2022-08-10 21:21:23 +0000 |
|---|---|---|
| committer | Gerrit Code Review <review@openstack.org> | 2022-08-10 21:21:23 +0000 |
| commit | e90fcc1535671e622110367411936bc2f270fa68 (patch) | |
| tree | 22817d76ddd0f7290ca5e5017dc18b39bb043d9b /releasenotes | |
| parent | 99dd3f75cd23a4ff419c20826f5abfcfed417889 (diff) | |
| parent | e76ec7af4d30604e3df9423226ebda90035f30b2 (diff) | |
| download | nova-e90fcc1535671e622110367411936bc2f270fa68.tar.gz | |
Merge "update default numa allocation strategy"
Diffstat (limited to 'releasenotes')
| -rw-r--r-- | releasenotes/notes/default-host-numa-strategy-to-spread-18668c6d80154042.yaml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/releasenotes/notes/default-host-numa-strategy-to-spread-18668c6d80154042.yaml b/releasenotes/notes/default-host-numa-strategy-to-spread-18668c6d80154042.yaml new file mode 100644 index 0000000000..aec87dc887 --- /dev/null +++ b/releasenotes/notes/default-host-numa-strategy-to-spread-18668c6d80154042.yaml @@ -0,0 +1,12 @@ +--- +upgrade: + - | + During the triage of https://bugs.launchpad.net/nova/+bug/1978372 + we compared the performance of nova's numa allocations strategies + as it applied to the large numbers of host and guest numa nodes. + Prior to ``Xena`` nova only supported a linear packing strategy. + In ``Xena`` ``[compute]/packing_host_numa_cells_allocation_strategy`` + was introduced maintaining the previous packing behavior by default. + The numa allocation strategy has now been defaulted to spread. + The old behavior can be restored by defining: + ``[compute]/packing_host_numa_cells_allocation_strategy=true`` |