Hi, OVS developers,
I am studying the hashing functions in OVS and find these two
implementations: hmap and cmap. I understand that cmap is the improved
cuckoo hashing and cmap supports multiple-reader and single writer. My
questions are:

1. What does hmap stand for? hash map?
2. hmap looks much simpler than cmap; does it support multi-reader and
single writers?
3. If cmap performs better than hmap, why not using cmap all over the OVS

Thanks in advance.

- Hui
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