[development] Refresh rather than re-create D6 cache

[Earl Miles]

On 10/18/2010 8:14 AM, Pierre Rineau wrote:
> Drupal caching model is not wrong, but a lot of modules developers did
> not understood how to use the hook_flush_caches() and implement massive
> cache clear or data rebuild within this function, which is absolutely
> wrong because core will run this hook at each cron run, thus making
> those modules caches virtually useless.
> 
> It's not free critiscism, there was a time where I myself did the error
> (I'm currently fixing a lot of code right now for site performances).
> I'm currently reporting those issues with some D6 contrib modules .

I disagree. Drupal's behavior is actually bad here, because
hook_flush_caches() is what we use when the 'clear cache' button is
pressed. The cache clear that happens during cron runs is actually a
misuse of the feature from its original intention, I think.

In any case, that wasn't really relevant to my point, which is that what
you're asking about is the Pressflow model of caching, and you should
look into it.