From: Oleksandr Gavenko <gavenkoa@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: Size and length limits for Emacs primitive types and etc data?
Date: Tue, 05 Feb 2013 22:17:47 +0200 [thread overview]
Message-ID: <87ip66o6qc.fsf@gavenkoa.example.com> (raw)
In-Reply-To: 83bobyaarz.fsf@gnu.org
On 2013-02-05, Eli Zaretskii wrote:
>> From: Oleksandr Gavenko <gavenkoa@gmail.com>
>> Date: Tue, 05 Feb 2013 11:41:55 +0200
>>
>> In my original post I can't analyse how many memory take hash tables...
>
> Depends on the size of the table, obviously.
>
I didn't visit CS courses. Does hash table take more then Coef*N memory space
from N keys? Like N*log_2(N) or similar?
Just looking to
http://en.wikipedia.org/wiki/Hash_table
shown that there are exist implementations with N^2 memory requirement...
>> And also it is interesting to know how much key-value pairs can hold hash
>> table.
>
> most-positive-fixnum, I guess. (Why is that interesting?)
>
I am start implementing ASN1 parser in Elisp. ASN1 data format designed to
store any theoretically possible data length (2^128 bytes...). But any
implementation have memory limits. I want to push this limits up to Elisp
abilities and document this in docs... So need concrete numbers...
--
Best regards!
next prev parent reply other threads:[~2013-02-05 20:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-22 22:06 Size and length limits for Emacs primitive types and etc data? Oleksandr Gavenko
2013-02-03 13:56 ` Aurélien Aptel
2013-02-03 19:16 ` Eli Zaretskii
2013-02-04 12:38 ` Aurélien Aptel
2013-02-04 15:57 ` Eli Zaretskii
2013-02-05 9:41 ` Oleksandr Gavenko
2013-02-05 18:14 ` Eli Zaretskii
2013-02-05 20:17 ` Oleksandr Gavenko [this message]
2013-02-05 21:35 ` Eli Zaretskii
2013-02-06 18:46 ` Stefan Monnier
[not found] ` <mailman.19079.1360088047.855.help-gnu-emacs@gnu.org>
2013-02-05 19:06 ` Burton Samograd
2013-02-05 20:04 ` Oleksandr Gavenko
2013-02-05 21:28 ` Eli Zaretskii
2013-02-05 22:25 ` Peter Dyballa
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