Dave Dutcher wrote:
That's an interesting situation. Your CPU's are pegged, and you're
hardly doing any IO. I wonder if there is some ineficient query, or
if its just very high query volume. Maybe you could try setting
log_min_duration_statement to try to track down the slowest of the
queries. Then post the slow queries with an explain analyze to the list.
Here is some info on setting up logging:
http://www.postgresql.org/docs/8.1/interactive/runtime-config-logging.html
Are your queries standard SQL or do you call functions you wrote in
PL/pgSQl or PL/Python or anything?
It might be a combo of queries and load. My queries use almost
exclusively functions, but on an unloaded dev machine performs its
queries in aprox 10ms. When is it appropriate to start clustering
database servers?
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