Improve "OVSFirewallDriver.process_trusted_ports"
FirewallDriver.process_trusted_ports" is called with many ports,
"_initialize_egress_no_port_security" retrieves the VIF ports
("Interface" registers in OVS DB), one per iteration, based in the
port_id. Instead of this procedure, if the DB is called only once to
retrieve all the VIF ports, the performance increase is noticeable.
E.g.: bridge with 1000 ports and interfaces.
Retrieving 100 ports:
- Bulk operation: 0.08 secs
- Loop operation: 5.6 secs
Retrieving 1000 ports:
- Bulk operation: 0.08 secs
- Loop operation: 59 secs
Closes-Bug: #1836095
Related-Bug: #1836023
Change-Id: I5b259717c0fdb8991f1df86b1ef4fb8ad0f18e70
(cherry picked from commit ae1d36fa9d
)
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f83e178e7f
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@ -512,6 +512,9 @@ class OVSFirewallDriver(firewall.FirewallDriver):
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raise exceptions.OVSFWPortNotFound(port_id=port_id)
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return ovs_port
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def get_ovs_ports(self, port_ids):
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return self.int_br.br.get_vifs_by_ids(port_ids)
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def _get_port_vlan_tag(self, port_name):
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return get_tag_from_other_config(self.int_br.br, port_name)
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@ -677,8 +680,10 @@ class OVSFirewallDriver(firewall.FirewallDriver):
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def process_trusted_ports(self, port_ids):
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"""Pass packets from these ports directly to ingress pipeline."""
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ovs_ports = self.get_ovs_ports(port_ids)
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for port_id in port_ids:
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self._initialize_egress_no_port_security(port_id)
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self._initialize_egress_no_port_security(port_id,
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ovs_ports=ovs_ports)
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# yield to let other greenthreads proceed
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eventlet.sleep(0)
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@ -758,9 +763,14 @@ class OVSFirewallDriver(firewall.FirewallDriver):
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ovs_consts.ACCEPTED_EGRESS_TRAFFIC_NORMAL_TABLE)
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)
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def _initialize_egress_no_port_security(self, port_id):
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def _initialize_egress_no_port_security(self, port_id, ovs_ports=None):
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try:
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ovs_port = self.get_ovs_port(port_id)
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if ovs_ports is not None:
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ovs_port = ovs_ports.get(port_id)
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if not ovs_port:
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raise exceptions.OVSFWPortNotFound(port_id=port_id)
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else:
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ovs_port = self.get_ovs_port(port_id)
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vlan_tag = self._get_port_vlan_tag(ovs_port.port_name)
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except exceptions.OVSFWTagNotFound:
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# It's a patch port, don't set anything
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@ -744,15 +744,21 @@ class TestOVSFirewallDriver(base.BaseTestCase):
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self.firewall._remove_egress_no_port_security('foo')
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def test_process_trusted_ports_caches_port_id(self):
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self.firewall.process_trusted_ports(['port_id'])
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self.assertIn('port_id', self.firewall.sg_port_map.unfiltered)
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vif_port = ovs_lib.VifPort('name', 1, 'id', 'mac', mock.ANY)
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with mock.patch.object(self.firewall.int_br.br, 'get_vifs_by_ids',
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return_value={'port_id': vif_port}):
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self.firewall.process_trusted_ports(['port_id'])
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self.assertEqual(1, len(self.firewall.sg_port_map.unfiltered))
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self.assertEqual(vif_port.ofport,
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self.firewall.sg_port_map.unfiltered['port_id'])
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def test_process_trusted_ports_port_not_found(self):
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"""Check that exception is not propagated outside."""
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self.mock_bridge.br.get_vif_port_by_id.return_value = None
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self.firewall.process_trusted_ports(['port_id'])
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# Processing should have failed so port is not cached
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self.assertNotIn('port_id', self.firewall.sg_port_map.unfiltered)
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with mock.patch.object(self.firewall.int_br.br, 'get_vifs_by_ids',
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return_value={}):
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self.firewall.process_trusted_ports(['port_id'])
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# Processing should have failed so port is not cached
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self.assertEqual(0, len(self.firewall.sg_port_map.unfiltered))
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def test_remove_trusted_ports_clears_cached_port_id(self):
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self.firewall.sg_port_map.unfiltered['port_id'] = 1
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