[RFC]: Support hugepage memory allocation via mmap to bypass RDMA memory registration limits

[xiaguan]

Changes proposed

Many RDMA environments have memory registration limits, causing registration failures when users try to start instances with large memory configurations.

Add support for users to specify hugepage-based memory allocation using mmap, which can bypass RDMA memory registration limits.

Before submitting a new issue...

• [ ] Make sure you already searched for relevant issues and read the documentation

[xiaguan]

Welcome to contribute! 🎉

[stmatengss]

Could you add this feature to #414 ? @xiaguan

[xiaguan]

Could you add this feature to #414 ? @xiaguan

Good, let me add this