I thought pymalloc is SLAB allocator. What is the difference between SLAB and pymalloc allocator?
On Thu, Jun 1, 2017 at 6:20 PM, Victor Stinner <victor.stin...@gmail.com> wrote: > 2017-06-01 10:40 GMT+02:00 Antoine Pitrou <solip...@pitrou.net>: >> This is already exactly how PyObject_Malloc() works. (...) > > Oh ok, good to know... > >> IMHO the main thing the >> private freelists have is that they're *private* precisely, so they can >> avoid a couple of conditional branches. > > I would like to understand how private free lists are "so much" > faster. In fact, I don't recall if someone *measured* the performance > speedup of these free lists :-) > > By the way, the Linux kernel uses a "SLAB" allocator for the most > common object types like inode. I'm curious to know if CPython would > benefit of a similar allocator for our most common object types? For > example types which already use a free list. > > https://en.wikipedia.org/wiki/Slab_allocation > > Victor > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/songofacandy%40gmail.com _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
