Joshua D. Drake wrote: > Heikki Linnakangas wrote: >> Bruce Momjian wrote: >>> o Automatic adjustment of bgwriter_lru_maxpages >>> >>> We show this as waiting for performance results. I am thinking we >>> should hold this for 8.4. >> Agreed. I spent close to a week trying different benchmarks and >> configurations and simple test cases on a test server and my laptop, and >> couldn't demonstrate bgwriter making a positive impact in any >> configuration I tried. The theory behind the patch is sound, but it >> looks like a lot more testing and analysis is needed. > > Wouldn't real world testing be needed to actually gain insight to this > patch?
I would expect a fairly static benchmark workload to benefit from having a bgwriter, more so than more unpredictable real world applications. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org
