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php-developer-list | 2002112

Re: [PHP-DEV] Zend fast cache From: George Schlossnagle (george <email protected>)
Date: 11/30/02

A little off-list discussion has sold me on the linked list
implementation. Seems very fast and very simple.

George

On Saturday, November 30, 2002, at 07:53 PM, Daniel Cowgill wrote:

>
> On Saturday, November 30, 2002, at 07:17 PM, Sterling Hughes wrote:
>
>> The problem I see with an array approach from an api perspective is
>> simply when a bucket
>> is free'd, in order to have efficient memory usage, we'd need a
>> second level array scan
>> for every ALLOC_ZVAL().
>>
>> Perhaps a linked list would be a better choice for this, as we can
>> just be smart about bucket
>> access, and eliminate the need for a scan (could be possible I'm
>> missing something?)
>
> I agree, a singly linked list seems like a no-brainer; it's an ideal
> memory-pool data structure because inserts and deletes occur only at
> the front of the list (so they're constant-time), the links are free,
> and the implementation is straightforward.
>
>
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