Excerpts from Andres Freund's message of jue abr 14 17:08:34 -0300 2011: > Hi, > > On Thursday 14 April 2011 16:43:16 Tom Lane wrote: > > I doubt that it's possible to make AllocSetAlloc radically cheaper. > I actually doubt your doubt. I think you could add some SLAB like interface > for common allocation sizes making it significantly faster for some uses > (because allocation/deallocation is a single linked list operation). > Maybe even treat everything < some_size as a slab object in the next bigger > slab.
I think the problem with a slab allocator is that it would make hierarchical context management slower and/or more complicated (e.g. reset context on transaction abort). -- Álvaro Herrera <alvhe...@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
