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pytest: increase test_generate_coinmoves to 5M entries.

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This is slow, but will make sure we find out if we add latency spikes in future.

tests/test_coinmoves.py::test_generate_coinmoves (5,000,000, sqlite3):
	Time (from start to end of l2 node):	 223 seconds
	Latency min/median/max:			 0.0023 / 0.0033 / 0.113 seconds

tests/test_coinmoves.py::test_generate_coinmoves (5,000,000, Postgres):
	Time (from start to end of l2 node):	 470 seconds
	Worst latency:				 0.0024 / 0.0098 / 0.124 seconds

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: lightningd: multiple signficant speedups for large nodes, especially preventing "freezes" under exceptionally high load.
This commit is contained in:
Rusty Russell
2025-11-20 12:07:15 +10:30
parent a877e285ef
commit 6865fe380d
1 changed files with 6 additions and 3 deletions
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9
tests/test_coinmoves.py
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@@ -10,6 +10,7 @@ import pytest
import random
import re
import threading
import statistics
import time
from pyln.testing.utils import EXPERIMENTAL_DUAL_FUND
@@ -2110,8 +2111,8 @@ def test_generate_coinmoves(node_factory, bitcoind, executor):
next_timestamp = entries[-1]['timestamp'] + 1
batch = []
# Let's make 2 million entries.
for _ in range(2_000_000 // len(entries)):
# Let's make 5 million entries.
for _ in range(5_000_000 // len(entries)):
# Random payment_hash
entries[0]['payment_hash'] = entries[1]['payment_hash'] = random.randbytes(32)
entries[2]['payment_hash'] = random.randbytes(32)
@@ -2170,4 +2171,6 @@ def test_generate_coinmoves(node_factory, bitcoind, executor):
stopme.set()
# Latency under 1 second
assert max(fut.result(TIMEOUT)) < 1
latencies = fut.result(TIMEOUT)
print(f"RESULT: min, median, max: {min(latencies)}, {statistics.median(latencies)}, {max(latencies)}")
assert max(latencies) < 1