On Thu, 23 Jul 2009, tomrevam wrote:

bgwriter_delay = 20ms                   # 10-10000ms between rounds
bgwriter_lru_maxpages = 1000            # 0-1000 max buffers written/round
bgwriter_lru_multiplier = 5.0           # 0-10.0 multipler on buffers 
scanned/round

These settings may be contributing to the problem. You should never run the background writer that frequently--it just wastes resources and writes more than it should. I'd suggest turning it off altogether (bgwriter_lru_maxpages = 0) and seeing if things improve any, just to rule that out as a potential source of issues.

--
* Greg Smith gsm...@gregsmith.com http://www.gregsmith.com Baltimore, MD

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