[Python-Dev] The memo of pickle

[Tim Peters]

[Martin v. Loewis]
> It's not a matter of beliefs: each dictionary entry contributes 12
> bytes. Each integer key contributes 12 bytes, each integer position
> contributes 12 bytes. Each tuple contributes 36 bytes.

I'm not in love with giant pickle memos myself, but to reduce expectations
closer to reality, note that each dict entry consumes at least 18 bytes (we
keep the load factor under 2/3, so there's at least one unused entry for
every two real entries; it's an indirect overhead, but a real one).