Andrew MacIntyre <[EMAIL PROTECTED]> wrote: > You should also appreciate something about PyMalloc: it only handles > allocation requests of 256 bytes or smaller, and this limitation is part > of PyMalloc's design. > > If most of your allocations are >256 bytes, you're at the mercy of the > platform malloc
You can tweak this if you are using libc (eg under linux) at least :- http://www.gnu.org/software/libc/manual/html_node/Malloc-Tunable-Parameters.html Setting M_MMAP_THRESHOLD should result in blocks that are perfectly free()able back to the OS if allocated with malloc(). By default this is 128k I think so you can set it to 4k and it should help a lot. Note that a mmap block is a minimum of 4k (under x86 - one OS page anyway) so set this too small and you program will use a *lot* of memory, but only temporarily ;-) If PyMalloc stretched up to 4k and M_MMAP_THRESHOLD was set to 4k then you'd have the perfect memory allocator... -- Nick Craig-Wood <[EMAIL PROTECTED]> -- http://www.craig-wood.com/nick -- http://mail.python.org/mailman/listinfo/python-list
