Date: Mon, 10 May 2010 11:42:26 -0700 From: Evan Geller <thespin@gmail.com> To: freebsd-hackers@freebsd.org Subject: Recursion in the UVA Message-ID: <AANLkTikykRbXSy8yp7K9kO6NgEm1zAz0KrXnwtZM6EZj@mail.gmail.com>
next in thread | raw e-mail | index | archive | help
I'm a bit confused how recursion in the UVA works. vm_map_entries are allocated from a vm_map_entry zone, but if the vm_map_entry slabs are full and it needs to allocate a vm_map_entry to satisfy the mapping, there would seem to be a starvation. I also see a uk_recurse field per keg that gets increased when calling back in... but I don't exactly understand what goes on after the NULL is returned. I'm also a bit confused about the difference between a keg, a zone, and a slab... the classic definition of the slab is the per-object cache with slabs... I'm having trouble understanding what the 3 level structure gets you. -- --- Evan Geller thespin@gmail.com
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?AANLkTikykRbXSy8yp7K9kO6NgEm1zAz0KrXnwtZM6EZj>