2010/6/15 Allan Kamau <kamaual...@gmail.com> > I do have a PL/SQL function that gets executed called many times but > with different parameter values each of these times. For most > invocations of this function run in a couple of seconds however some > invocations of the same function run (on the same dataset) for hours > with very little disk activity but high CPU. >
> > How can I monitor the actual DB activities during such times so I may > better understand what the situation truly is. You can monitor system parameters (CPU, disk IO, memory) with standard OS-specific tools (on Unix: top, ps iostat,vmstat) I have seen some users > on this list posting some complex log/outputs, this are the kind of > outputs I would like to capture and view. Where are they? > > they are mostly in log files or output from EXPLAIN ANALYZE command for general info see http://www.postgresql.org/docs/current/static/runtime-config-logging.html http://www.postgresql.org/docs/8.4/static/using-explain.html http://wiki.postgresql.org/wiki/Performance_Optimization and this list archives. Filip
