From 716da21f85d9c7548c02c351ab52f3324ad9e0f3 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 10 Nov 2016 23:53:48 +1030
Subject: [PATCH] chaintopology: reduce how far back we start on testnet.
When initially reading the blockchain, we start 100 back from the
current block, or at the first block with a funding transaction,
whichever is earlier.
This slows testing slightly, so use whatever the "forever" value is
(10 on testnet, still 100 on mainnet).
make check -j12 times:
Before: 7m52.005s
After: 6m31.896s
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
daemon/chaintopology.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/daemon/chaintopology.c b/daemon/chaintopology.c
index 681269777..ee1fe9753 100644
--- a/daemon/chaintopology.c
+++ b/daemon/chaintopology.c
@@ -483,10 +483,11 @@ static void get_init_blockhash(struct lightningd_state *dstate, u32 blockcount,
u32 start;
struct peer *peer;
- if (blockcount < 100)
+ /* Start back before any reasonable forks. */
+ if (blockcount < dstate->config.forever_confirms)
start = 0;
else
- start = blockcount - 100;
+ start = blockcount - dstate->config.forever_confirms;
/* If loaded from database, go back to earliest possible peer anchor. */
list_for_each(&dstate->peers, peer, list) {