No values are required for lookup purposes. And the length of the keys makes surprisingly little difference to the size of the hash.
For example: For a hash with 11,881,376 keys:
- From 5-bytes keys (the minimum required) to 14-bytes keys, the memory required remains almost static at 1.7GB.
- From 15-bytes through 29-bytes, it goes to 1.9 GB.
- From 30-bytes through 46-bytes, it goes to 2.1 GB.
- from 47-bytes .... , it goes to 2.3 GB.
So if I have 11,881,376 keys with an average key size of say 250 bytes it would only be 2.3 GB? Same with 400 bytes? Or 500 bytes?
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|