can resources.cores support floating-point numbers? such as 0.2?

[lzytaro]

Proposal

Hello, may I ask if resources.cores can support floating-point numbers? For example, 0.2

Use-cases

My server has 64 cores. My service needs to ensure high real-time performance, so cores need to be bound for operation. I need to run 320 containers on one server, that is, each CPU core can be bound to 5 containers. Therefore, the cores parameter needs to be configured to 0.2

Attempted Solutions

resources.cores can support floating-point numbers? For example, 0.2

[tgross]

Hi @lzytaro! The current cores implementation provides reserving access to the core via cpuset. Whereas what you're looking for is pinning to a core non-exclusively but in with some numeric controls for how many workloads can be pinned to that core? This is possible but surprisingly non-trivial because all the existing cpuset logic would need to be reworked. I'll mark this for further discussion and roadmapping.