[Opensim-dev] Updating attachment assets

[Bo]

Hello,
i love to hear this speech about asset reduction. But i just wonder if it 
would be not easier to have 2 table for assets. One fast for the actually used 
assets (live table) and one slow for the less used (backup table)...

There is the access_time time value. So it could be easy to move the unused 
assets to the backup table and if these requested again move it back to the 
live table.

I don't think someone really needs to purge other than map tile assets so the 
only thing why we really need this is have small "live asset" table for 
performance reasons.

Thank you for reading, Bo

PS: LL has similar system, but unsure i i remember it right. It is long time 
since i hears about it...

On Monday 03 of October 2011 08:54:04 Oren Hurvitz wrote:
> Thanks for that info! Indeed it's unsafe to delete assets in the scenario
> that I've described. It looks like it's not safe to delete assets at all
> (except for trivial assets such as map tiles) unless we add some form of
> reference-counting or garbage collection, since any asset might be in use
> in other peoples' inventories, or in a prim in some other region.
> 
> Suppose I want to implement garbage collection of unused assets. I would
> need to find which assets are in use anywhere. Would the following
> procedure be sufficient? :
> 
> 1. Find all the assets in the inventories of all the users
> 2. Find all the assets in the inventories of all the prims
> 3. Parse each asset to find if the asset itself points to other assets (use
> UuidGatherer)
> 
> Is there any other place that uses assets?
> 
> Oren
> 
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