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update default overcommit

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This change updates the cpu and ram initial
allocation ratios to 4.0 and 1.0 to reflect
the typical values that are suitable for non web
hosting workloads.

Change-Id: I283eb270a4e47da15cf01d098b4f3952f7b5b570
implements: bp/nova-change-default-overcommit-values
This commit is contained in:
Sean Mooney
2022-02-24 14:37:44 +00:00
parent ce15e7fa68
commit 1260cdd492
8 changed files with 49 additions and 15 deletions
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doc/source/admin/scheduling.rst
+10
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@@ -1100,6 +1100,16 @@ control the initial allocation ratio values for a compute node:
* :oslo.config:option:`initial_disk_allocation_ratio` the initial DISK_GB
inventory allocation ratio for a new compute node record, defaults to 1.0
Starting with the 27.0.0 Antelope release, the following default values are used
for the initial allocation ratio values for a compute node:
* :oslo.config:option:`initial_cpu_allocation_ratio` the initial VCPU
inventory allocation ratio for a new compute node record, defaults to 4.0
* :oslo.config:option:`initial_ram_allocation_ratio` the initial MEMORY_MB
inventory allocation ratio for a new compute node record, defaults to 1.0
* :oslo.config:option:`initial_disk_allocation_ratio` the initial DISK_GB
inventory allocation ratio for a new compute node record, defaults to 1.0
Scheduling considerations
~~~~~~~~~~~~~~~~~~~~~~~~~