comp.lang.ruby

Bira

12/2/2007 3:19:00 PM

On Nov 23, 2007 8:00 AM, ochronus@gmail.com <ochronus@gmail.com> wrote:
> Hi All,
>
> I have a script which serves as a cache, storing "large" (around
> 60MB) objects. Once in a day I have to drop
> the old data and load fresh data in the cache. The cache itself is
> simply a hash of hashes, nothing special. I thought of a simple
> process: I wrote a loader method,
>
> def loader
> tmp_holder = get_new_data(somehow)
> $actual_cache = tmp_holder
> end
>
> I expected tmp_holder to be freed after the method finishes, since
> it's not referred to anywhere else. What's actually
> happening is that my script is using more and more memory as days
> pass, as if tmp_holder was still present.
> How could I solve this situation?

tmp_holder is still being referenced, since you're assigning it to
that global variable.

The example below seems to be more GC-friendly to me, but since I'm
not exactly an expert at this, I may be wrong. But it might be worth
trying:

$actual_cache.clear
$actual_cache.merge(get_new_data(somehow))



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