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lnrouter: change edge cost estimate (distance metric)

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Old estimate was heavily biased towards simply minimising CLTV sum.
(fees had a too low weight; typically they were ~noise)
Now also take payment_amount into account.
This commit is contained in:
SomberNight
2020-03-03 02:12:42 +01:00
parent 367d30d6c0
commit cdb72509a7
2 changed files with 16 additions and 10 deletions
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4
electrum/tests/test_lnrouter.py
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@@ -96,9 +96,7 @@ class Test_LNRouter(TestCaseForTestnet):
cdb.add_channel_update({'short_channel_id': bfh('0000000000000006'), 'message_flags': b'\x00', 'channel_flags': b'\x01', 'cltv_expiry_delta': o(10), 'htlc_minimum_msat': o(250), 'fee_base_msat': o(100), 'fee_proportional_millionths': o(150), 'chain_hash': BitcoinTestnet.rev_genesis_bytes(), 'timestamp': b'\x00\x00\x00\x00'})
path = path_finder.find_path_for_payment(b'\x02aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa', b'\x02eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee', 100000)
self.assertEqual([(b'\x02bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb', b'\x00\x00\x00\x00\x00\x00\x00\x03'),
(b'\x02cccccccccccccccccccccccccccccccc', b'\x00\x00\x00\x00\x00\x00\x00\x01'),
(b'\x02dddddddddddddddddddddddddddddddd', b'\x00\x00\x00\x00\x00\x00\x00\x04'),
(b'\x02eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee', b'\x00\x00\x00\x00\x00\x00\x00\x05')
(b'\x02eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee', b'\x00\x00\x00\x00\x00\x00\x00\x02'),
], path)
start_node = b'\x02bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb'
route = path_finder.create_route_from_path(path, start_node)