> From: Garrett D'Amore [mailto:garr...@nexenta.com] > > It is tunable, I don't remember the exact tunable name... Arc_metadata_limit > or some such.
There it is: echo "::arc" | sudo mdb -k | grep meta_limit arc_meta_limit = 286 MB Looking at my chart earlier in this discussion, it seems like this might not be the cause of the problem. In my absolute largest test that I ran, my supposed (calculated) DDT size was 287MB, so this performance abyss was definitely happening at sizes smaller than the arc_meta_limit. But I'll go tune and test with this knowledge, just to be sure. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss