Example for testing multiple repository syncs in a standalone Pulp (outside of mod_wsgi)
 sudo ./sync_memory_test.py --feed_urls ./feed_urls_small --num_syncs 1

The input parameter '--feed_urls' is the path to a file of repo information.
It must be in the format.  
 Each line:  repo_id, feed_url, feed_ca, feed_cert

 This file can be generated from existing repos in a Pulp server by using:
  pulp/playpen/grinder/mirror_pulp/repo_list.sh
    then converting the output to JSON to this format by running:
  pulp/playpen/grinder/mirror_pulp/convert_repo_list.py