Re: [Exist-development] [Exist-open] Performance of concurrent read queries.

[Dmitriy S. <sha...@gm...>]

On Sun, 2010-08-29 at 11:33 +0200, Wolfgang Meier wrote:
> > Would 'normal' lock mechanism be suitable here? Or any restrictions that
> > do not allow to use it?
> 
> I'm not yet sure of the consequences. I do believe without further
> exploration that we could switch to a multi-read/exclusive write lock
> mechanism in some places, though this would require some changes to
> the cache management (which could - in return - result in new locks
> being introduced ;-). The goal, let me repeat, would be to speed up
> non index-assisted, non-optimized access to the DOM. Index-assisted
> access itself is pretty fast and does allow for good concurrency.
> 
> But we have to be very careful here since the architecture is complex:
> you have to consider transactional integrity, journalling, caching and
> other aspects. If we change anything, we have to proceed carefully and
> in very small steps. Stability is always my top priority.

I was wonder: "is there are restrictions?" So, answer "no" is good
here ;-)

-- 
Cheers,

Dmitriy Shabanov