Re: [PATCHES] Load Distributed Checkpoints, revised patch

2007-06-16 Thread Simon Riggs
On Fri, 2007-06-15 at 13:11 +0200, Michael Paesold wrote: Heikki Linnakangas wrote: Here's an updated WIP version of the LDC patch. I just spreads the writes, that achieves the goal of smoothing the checkpoint I/O spikes. I think sorting the writes etc. is interesting but falls in the

Re: [PATCHES] Maintaining cluster order on insert

2007-06-16 Thread Tom Lane
Jaime Casanova [EMAIL PROTECTED] writes: another question: if the fillfactor is 100% then is a complete waste of time to look for a suggested block. maybe we could check for that? No, it isn't, since the page might have been vacuumed since it was last filled up.

Re: [PATCHES] Load Distributed Checkpoints, revised patch

2007-06-16 Thread Tom Lane
Simon Riggs [EMAIL PROTECTED] writes: checkpoint_maxpages would seem like a better name; we've already had those _maxpages settings for 3 releases, so changing that is not really an option (at so late a stage). Sure it is. We've never promised stability of obscure tuning settings. For

Re: [PATCHES] Load Distributed Checkpoints, revised patch

2007-06-16 Thread Simon Riggs
On Sat, 2007-06-16 at 11:02 -0400, Tom Lane wrote: Simon Riggs [EMAIL PROTECTED] writes: checkpoint_maxpages would seem like a better name; we've already had those _maxpages settings for 3 releases, so changing that is not really an option (at so late a stage). Sure it is. Maybe, but

Re: [PATCHES] Maintaining cluster order on insert

2007-06-16 Thread Jaime Casanova
On 6/16/07, Tom Lane [EMAIL PROTECTED] wrote: Jaime Casanova [EMAIL PROTECTED] writes: another question: if the fillfactor is 100% then is a complete waste of time to look for a suggested block. maybe we could check for that? No, it isn't, since the page might have been vacuumed since it was

Re: [PATCHES] [pgsql-www] out of date url in developer faq

2007-06-16 Thread Robert Treat
Forwarding to -patches. FWIW I looked around a little and couldn't find a suitable replacement, but if someone knows of one (or can find one) we could replace the link rather than remove it. On Friday 15 June 2007 20:23, David Gardner wrote: I was just reading the pgsql developer faq :

[PATCHES] Transaction Guarantee, updated version

2007-06-16 Thread Simon Riggs
Completed all of the agreed changes for TG: - WAL writer now runs always, wal_writer_delay = 50ms (default) - when transaction_guarantee = off we record the latest LSN - when we set xact hint bits we look at the latest LSN - added database-level stats to show guaranteed commits - fsync parameter