[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: obarray confusion
|
From: |
Stefan Monnier |
|
Subject: |
Re: obarray confusion |
|
Date: |
Wed, 08 Dec 2010 15:33:55 -0000 |
|
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
> (mapatoms (lambda (s) (incf n))) tells me I have 43061 symbols defined.
> (length obarray) tells me the standard obarray has a size of 1511.
> My understanding is that an obarray is essentially a hash table with
> collision chaining. But this would mean that the linked list of symbols
> in each bucket has an average length of 43061 / 1511 ≈ 28.
That's right.
> Emacs's symbol lookup couldn't possibly be that inefficient, could it?
I think it not only could.
Stefan