[Opensim-dev] HUGE ASSET CACHE

[Imaze Rhiano]

Hi!

At least CoreAssetCache seems to have just hard item limit of 1024 and 
GlynnTuckerAssetCache doesn't any limit at all (so it is just growing 
until there is BIGBADABOOOOOOOm! :P).

My new Cenome memory cache seems to work fine in my testing - all code 
is done, but documenting it is taking bit time :) (One day intensive 
coding and designing - 3 days not so intensive documenting). It's 
performance seems to be pretty good - bit lower than pure hash 
dictionary, but it have working cache time expiration and byte size 
limits. I still would like to write some unit test cases for it, before 
releasing it to Mantis as patch. (I hope that I will  find some guide 
how to do patch and release it frome somewhere - never done that before).

File caching would be interesting test case for my database engine. 
Thought unfortunately, database engine would be then closed source file :(

- Imaze Rhiano

Mike Dickson kirjoitti:
> Given the recent changes for modularity has there been any thought to
> being able to configure a seperate shared cache across multiple regions.
> Something like the Jakarta JCS stuff (http://jakarta.apache.org/jcs/)
> comes to mind.  I'm not suggesting that specific implementation but
> simply that if you provide a way to specify assets such that you can
> interpose a shared cache in the middle (not directly tied to a single
> region) you might see better cache utilization with overall memory use
> lower.  I don't know how often the current caching code does cache
> invalidation (or even if it does) but having a shared cache across
> multiple regions might lower that overhead as well.
>
> Mike
>
>
> On Sun, 2009-05-31 at 15:12 +0000, Michael Cortez wrote:
>   
>> Dan wrote:
>>     
>>> Is it possible to configure a huge disk asset-cache for region servers?
>>>       
>> A disk cache is currently being tested.
>>
>> No guarantees, warranties, express or implied but the test patch is 
>> available at
>>
>> http://code.google.com/p/flotsam/downloads/list
>>
>> This is just something I threw together in a couple minutes of coding as 
>> a proof of concept for a file cache.  There is no limiting or expiration 
>> mechanism, and as such is not appropriate for production use.  If 
>> testing proves that it's useful, then I'll submit to mantis for 
>> inclusion in OpenSim SVN.
>>
>> --
>> Michael Cortez
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>>     
>
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