config: add annotation for exec isolated CPU affinity #1252
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The runc container runtime recently introduced functionality to direct exec operations to the first isolated CPU in a container cgroup cpuset. This is enabled through a new runc specific container annotation: org.opencontainers.runc.exec.isolated-cpu-affinity-transition See opencontainers/runc@afc23e3397 for the details. This new functionality is also required in the crun container runtime and will be added soon. This purpose of this commit is to add a new annotation to the OCI runtime specification that would be used by any runtime that implements this new functionality: org.opencontainers.runtime.exec.isolated-cpu-affinity-transition The runc implementation should switch to using the new annotation once it is accepted. Signed-off-by: Bart Wensley <[email protected]>
bartwensley
requested review from
AkihiroSuda,
crosbymichael,
cyphar,
dqminh,
giuseppe,
hqhq,
kolyshkin,
mrunalp,
thaJeztah,
tianon and
utam0k
as code owners
AkihiroSuda
requested changes
May 17, 2024
|
Agree -- a runtime-specific annotation seems like a really great way for one runtime to experiment with adding functionality like this before it's fully standardized or proven out, but as soon as it's something desirable for interoperability, it seems worth making a proper "feature" instead. |
This was referenced May 18, 2024
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I am abandoning this in favor of #1253 |
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The runc container runtime recently introduced functionality to direct exec operations to the first isolated CPU in a container cgroup cpuset. This is enabled through a new runc specific container annotation: org.opencontainers.runc.exec.isolated-cpu-affinity-transition
See opencontainers/runc@afc23e3397 for the details.
This new functionality is also required in the crun container runtime and will be added soon. This purpose of this commit is to add a new annotation to the OCI runtime specification that would be used by any runtime that implements this new functionality:
org.opencontainers.runtime.exec.isolated-cpu-affinity-transition
The runc implementation should switch to using the new annotation once it is accepted.