5 from flow_config_blaster import FlowConfigBlaster, get_json_from_file
6 from inventory_crawler import InventoryCrawler
7 from config_cleanup import cleanup_config_odl
10 __author__ = "Jan Medved"
11 __copyright__ = "Copyright(c) 2014, Cisco Systems, Inc."
12 __license__ = "New-style BSD"
13 __email__ = "jmedved@cisco.com"
17 def __init__(self, verbose=False):
18 self.verbose = verbose
21 self.start = time.time()
24 def __exit__(self, *args):
25 self.end = time.time()
26 self.secs = self.end - self.start
27 self.msecs = self.secs * 1000 # millisecs
29 print ("elapsed time: %f ms" % self.msecs)
32 def wait_for_stats(crawler, exp_found, timeout, delay):
34 Waits for the ODL stats manager to catch up. Polls ODL inventory every
35 <delay> seconds and compares the retrieved stats to the expected values. If
36 stats collection has not finished within <timeout> seconds, the test is
38 :param crawler: Inventory crawler object
39 :param exp_found: Expected value for flows found in the network
40 :param timeout: Max number of seconds to wait for stats collector to
42 :param delay: poll interval for inventory
46 print 'Waiting for stats to catch up:'
50 crawler.crawl_inventory()
51 print ' %d, %d' % (crawler.reported_flows, crawler.found_flows)
52 if crawler.found_flows == exp_found or total_delay > timeout:
57 if total_delay < timeout:
58 print 'Stats collected in %d seconds.' % t.secs
60 print 'Stats collection did not finish in %d seconds. Aborting...' % total_delay
63 if __name__ == "__main__":
64 ############################################################################
65 # This program executes an ODL performance test. The test is executed in
68 # 1. The specified number of flows is added in the 'add cycle' (uses
69 # flow_config_blaster to blast flows)
70 # 2. The network is polled for flow statistics from the network (using the
71 # inventory_crawler.py script) to make sure that all flows have been
72 # properly programmed into the network and the ODL statistics collector
73 # can properly read them
74 # 3. The flows are deleted in the flow cycle. Deletion happens either in
75 # 'bulk' (using the config_cleanup) script or one by one (using the
76 # flow_config_blaster 'delete' method)
77 ############################################################################
79 parser = argparse.ArgumentParser(description='Flow programming performance test: First adds and then deletes flows '
80 'into the config tree, as specified by optional parameters.')
82 parser.add_argument('--host', default='127.0.0.1',
83 help='Host where odl controller is running (default is 127.0.0.1)')
84 parser.add_argument('--port', default='8181',
85 help='Port on which odl\'s RESTCONF is listening (default is 8181)')
86 parser.add_argument('--cycles', type=int, default=1,
87 help='Number of flow add/delete cycles; default 1. Both Flow Adds and Flow Deletes are '
88 'performed in cycles. <THREADS> worker threads are started in each cycle and the cycle '
89 'ends when all threads finish. Another cycle is started when the previous cycle finished.')
90 parser.add_argument('--threads', type=int, default=1,
91 help='Number of request worker threads to start in each cycle; default=1. '
92 'Each thread will add/delete <FLOWS> flows.')
93 parser.add_argument('--flows', type=int, default=10,
94 help='Number of flows that will be added/deleted by each worker thread in each cycle; '
96 parser.add_argument('--fpr', type=int, default=1,
97 help='Flows-per-Request - number of flows (batch size) sent in each HTTP request; '
99 parser.add_argument('--delay', type=int, default=2,
100 help='Time (seconds) to between inventory polls when waiting for stats to catch up; default=1')
101 parser.add_argument('--timeout', type=int, default=100,
102 help='The maximum time (seconds) to wait between the add and delete cycles; default=100')
103 parser.add_argument('--delete', dest='delete', action='store_true', default=True,
104 help='Delete all added flows one by one, benchmark delete '
106 parser.add_argument('--bulk-delete', dest='bulk_delete', action='store_true', default=False,
107 help='Delete all flows in bulk; default=False')
108 parser.add_argument('--auth', dest='auth', action='store_true',
109 help="Use authenticated access to REST (username: 'admin', password: 'admin'); default=False")
110 parser.add_argument('--startflow', type=int, default=0,
111 help='The starting Flow ID; default=0')
112 parser.add_argument('--file', default='',
113 help='File from which to read the JSON flow template; default: no file, use a built in '
116 in_args = parser.parse_args()
119 if in_args.file != '':
120 flow_template = get_json_from_file(in_args.file)
124 ic = InventoryCrawler(in_args.host, in_args.port, 0, 'operational', in_args.auth, False)
126 fct = FlowConfigBlaster(in_args.host, in_args.port, in_args.cycles, in_args.threads, in_args.fpr,
127 16, in_args.flows, in_args.startflow, in_args.auth)
128 # Get the baseline stats. Required in Step 3 to validate if the delete
129 # function gets the controller back to the baseline
131 reported = ic.reported_flows
132 found = ic.found_flows
135 print ' Reported flows: %d' % reported
136 print ' Found flows: %d' % found
138 # Run through <CYCLES> add cycles, where <THREADS> threads are started in
139 # each cycle and <FLOWS> flows are added from each thread
142 print '\n*** Total flows added: %d' % fct.get_ok_flows()
143 print ' HTTP[OK] results: %d\n' % fct.get_ok_rqsts()
145 # Wait for stats to catch up
146 wait_for_stats(ic, found + fct.get_ok_flows(), in_args.timeout, in_args.delay)
148 # Run through <CYCLES> delete cycles, where <THREADS> threads are started
149 # in each cycle and <FLOWS> flows previously added in an add cycle are
150 # deleted in each thread
151 if in_args.bulk_delete:
152 print '\nDeleting all flows in bulk:'
153 sts = cleanup_config_odl(in_args.host, in_args.port, in_args.auth)
155 print ' Failed to delete flows, code %d' % sts
157 print ' All flows deleted.'
159 print '\nDeleting flows one by one\n ',
161 print '\n*** Total flows deleted: %d' % fct.get_ok_flows()
162 print ' HTTP[OK] results: %d\n' % fct.get_ok_rqsts()
164 # Wait for stats to catch up back to baseline
165 wait_for_stats(ic, found, in_args.timeout, in_args.delay)