On Tue, 2004-12-14 at 19:40, Tom Lane wrote: > "Zeugswetter Andreas DAZ SD" <[EMAIL PROTECTED]> writes: > > Is it possible to do a patch that produces a dirty buffer list in LRU order > > and stops early when eighter maxpages is reached or bgwriter_percent > > pages are scanned ? > > Only if you redefine the meaning of bgwriter_percent. At present it's > defined by reference to the total number of dirty pages, and that can't > be known without collecting them all. > > If it were, say, a percentage of the total length of the T1/T2 lists, > then we'd have some chance of stopping the scan early.
...which was exactly what was proposed for option (3). -- Best Regards, Simon Riggs ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend