Tate, Hongliang Tian

> 1. We haven't got scripts to dump data from the guest to host using network/vsock/9pfs, although we can access the instrumentation result in the Asterinas guest user space; The...

@zamazan4ik Thanks for bringing PGO (and LTO as well) to our attention. This is a good suggestion. Currently, our focus is to identify performance bottlenecks at the design and implementation...

@jellllly420 Good job on spotting the bug. Could you try to fix it?

In addition, this PR needs more documentation and unit tests.

@StevenJiang1110 Need your input for the new version.

Is there any user of `Condvar` in `aster-nix`?

> > Is there any user of `Condvar` in `aster-nix`? > > I think the `tdx_guest` can be a user where the `handle_get_quote` should wait until the quote is ready....

@LclclcdIsACat Could you double check the correctness of `Condvar` under concurrency? Also, whether the implementation can be further simplified. Thanks a lot!

> Since we now support kernel thread testing with ktest and haven't yet identified a suitable use case for `condvar`, I've followed the use cases found in Rust's standard library...

> I have no objections regarding the current correctness as all counter modifications are protected under a `SpinLock`. Additionally, I think the current implementation indeed meets the description provided in...