When running real data, as opposed to benchmarks, I notice that my l2arc stops filling, even though the majority of my reads are still going to primary storage. I'm using 5 SSDs for L2ARC, so I'd expect to get good throughput, even with sequential reads.
I'd like to experiment with disabling the l2arc_noprefetch feature, to see how the performance compares by caching more data. How exactly do I do that? Right now, I added the following line to /etc/system, but it doesn't seem to have made a difference. I'm still seeing most of my reads go to primary storage, even though my cache should be warm by now, and my SSDs are far from full. set zfs:l2arc_noprefetch = 0 Am I setting this wrong? Am misunderstanding this option? Thanks, Rob -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
