Profiling

To analyze pycsw performance, the following approach can be used:

1. Alter csw.py to run as a single function through cProfile:

from server import server
import cProfile
def foo():
    # get runtime configuration
    CSW = server.Csw('./default.cfg')
    # go!
    CSW.dispatch()

cProfile.run('foo()', '/tmp/pycsw.prof')

This will output the profiling report to /tmp/pycsw.prof.

2. Convert the profiling output to a dot graph with gprof2dot: gprof2dot -f pstats /tmp/pycsw.prof |dot -Tpng -o /tmp/pycsw-prof.png

This will output a PNG graph of the entire process, which can help identify bottlenecks in a given process.