Re: Smart strings & memory allocation

SS>> > This might actually be a very good idea, since it can likely improve SS>> > performance a lot by having a pool of zval-sized blocks (I have no idea SS>> > of how big they are). Have you thought about how to implement it in a SS>> > good way? SS>> SS>> Free lists already exist. Yes, of course.. The problem I percieve might be with freelisting approach (I am not sure it is the real problem, but I think it might be) that we can lead to severe fragmentation in common malloc arena, especially when a large number of threads have a lot of long-lived malloced blocks. On top of this, freelisted elements still need to be individually allocated - which can be less efficient than using some kind of fixed-block slab allocator. Again, I do not yet claim it is indeed so - I just think it may be a possibility that it is so. -- Stanislav Malyshev, Zend Products Engineer stas@zend.com http://www.zend.com/ +972-3-6139665 ext.109