> > Poor sequential read performance has not been quantified. > > > - COW probably makes that conflict worse > > > > > > This needs to be proven with a reproducible, real-world workload before it > makes sense to try to solve it. After all, if we cannot measure where > we are, > how can we prove that we've improved?
I agree, let's first find a reproducible example where "updates" negatively impacts large table scans ... one that is rather simple (if there is one) to reproduce and then work from there. I might be able to help with such an example during the month of December/January :) I do have a question though? (Should probably ask in database-discuss). Q: Does a full online backup of a DB (let's say Legato Networker with oracle plugin) constitute "large sequential table scans" in the way that it reads database data? It probably is not as simple as that... _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
