On 30 August 2012 20:28, Robert Haas <robertmh...@gmail.com> wrote: > On Sat, Jul 28, 2012 at 4:09 PM, Jeff Janes <jeff.ja...@gmail.com> wrote: >> But it might be better yet to make ordinary index scans benefit from >> effective_io_concurrency, but even if/when that gets done it would >> probably still be worthwhile to make the planner understand the >> benefit. > > That sounds good too, but separate.
Indeed. The original effective_io_concurrency commit message said: """ ***SNIP*** (The best way to handle this for plain index scans is still under debate, so that part is not applied yet --- tgl) """ ...seems like a pity that this debate never reached a useful conclusion. Just how helpful is effective_io_concurrency? Did someone produce a benchmark at some point? -- Peter Geoghegan http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training and Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
