Theo Galanakis wrote: > Under postgres 7.3 logging is incredibly slow! > > I have applied the following settings: > > syslog = 2 > syslog_facility = 'LOCAL0' > syslog_ident = 'postgres' > > log_connections = true > log_duration = true > log_pid = true > log_statement = true > log_timestamp = true > > This severely impacted the performance of our production system, a search > page which took 1-3 seconds now takes over 30, is this normal? > > I need to get some performance indicators from our production db, however I > cant turn on logging with such performance degradation.
Linux syslog has this bad behavior of fsync'ing all log writes. See the syslog manual page for a way to turn off the fsync. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
