On Thu, Jan 12, 2012 at 4:31 AM, Simon Riggs <si...@2ndquadrant.com> wrote:
> The following patch adds a pgbench option -I to load data using > INSERTs, so that we can begin benchmark testing with rows that have > large numbers of distinct un-hinted transaction ids. With a database > pre-created using this we will be better able to simulate and thus > more easily measure clog contention. Note that current clog has space > for 1 million xids, so a scale factor of greater than 10 is required > to really stress the clog. Running with this patch with a non-default scale factor generates the spurious notice: "Scale option ignored, using pgbench_branches table count = 10" In fact the scale option is not being ignored, because it was used to initialize the pgbench_branches table count earlier in this same invocation. I think that even in normal (non-initialization) usage, this message should be suppressed when the provided scale factor is equal to the pgbench_branches table count. Cheers, Jeff -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
