github/kata-containers
1
0
Fork 1
mirror of https://github.com/kata-containers/kata-containers.git synced 2025-08-27 20:18:57 +00:00
Code Issues Projects Releases Wiki Activity

docs: cpu: resources: fix vcpu calculation formula

Browse Source 
The formula is not updated according on
how is done in kata-runtime.

Fixes: #489

Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
This commit is contained in:
Jose Carlos Venegas Munoz 2019-06-11 13:12:23 -05:00
parent 16efde2004
commit 3fe8660a9a
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
design/cpu-constraints.md
View File

@ -130,7 +130,7 @@ more vCPUs, you can add more using [docker update][4].
## Container with CPU constraint ## Container with CPU constraint
The runtime calculates the number of vCPUs required by a container with CPU The runtime calculates the number of vCPUs required by a container with CPU
constraints using the following formula: `(quota + (period -1)) / period`, where constraints using the following formula: `vCPUs = ceiling( quota / period )`, where
`quota` specifies the number of microseconds per CPU Period that the container is `quota` specifies the number of microseconds per CPU Period that the container is
guaranteed CPU access and `period` specifies the CPU CFS scheduler period of time guaranteed CPU access and `period` specifies the CPU CFS scheduler period of time
in microseconds. The result determines the number of vCPU to hot plug into the in microseconds. The result determines the number of vCPU to hot plug into the