* Tom Lane ([EMAIL PROTECTED]) wrote: > Russ Brown <[EMAIL PROTECTED]> writes on pgsql-general: > > Thank you: the problem was the effective_cache_size (which I hadn't > > changed from the default of 1000). This machine doesn't have loads of > > RAM, but I knocked it up to 65536 and now the query uses the index, > > without having to change the statistics. > > Considering recent discussion about how 8.2 is probably noticeably more > sensitive to effective_cache_size than prior releases, I wonder whether > it's not time to adopt a larger default value for that setting. The > current default of 1000 pages (8Mb) seems really pretty silly for modern > machines; we could certainly set it to 10 times that without problems, > and maybe much more. Thoughts?
I'd have to agree 100% with this. Though don't we now have something automated for shared_buffers? I'd think effective_cache_size would definitely be a candidate for automation (say, half or 1/4th the ram in the box...). Barring the ability to do something along those lines- yes, I'd recommend up'ing it to at least 128M or 256M. Thanks, Stephen
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