On Thu, Jul 06, 2006 at 09:53:32PM +0530, Pramod Batni wrote: > > offtopic query : > How can ZFS require more VM address space but not more VM ? >
The real problem is VA fragmentation, not consumption. Over time, ZFS's heavy use of the VM system causes the address space to become fragmented. Eventually, we will need to grab a 128k block of contiguous VA, but can't find a contiguous region, despite having plenty of memory (physical or virtual). This is only a problem on 32-bit kernels, because on a 64-bit kernel VA is effectively limitless. - Eric -- Eric Schrock, Solaris Kernel Development http://blogs.sun.com/eschrock _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
