f - WIP part 2

Author: jkczyz

lightning/src/routing/scoring.rs

@@ -677,7 +677,7 @@ impl<T: Time> ChannelLiquidity<T> {
 const NEGATIVE_LOG10_UPPER_BOUND: u64 = 2;
 
 /// The divisor used when computing the amount penalty.
-const AMOUNT_PENALTY_DIVISOR: u64 = 1024;
+const AMOUNT_PENALTY_DIVISOR: u64 = 1 << 20;
 
 impl<L: Deref<Target = u64>, T: Time, U: Deref<Target = T>> DirectedChannelLiquidity<L, T, U> {
 	/// Returns a penalty for routing the given HTLC `amount_msat` through the channel in this
@@ -2125,11 +2125,11 @@ mod tests {
 
 		let params = ProbabilisticScoringParameters {
 			liquidity_penalty_multiplier_msat: 1_000,
-			amount_penalty_multiplier_msat: 1_000,
+			amount_penalty_multiplier_msat: 256,
 			..Default::default()
 		};
 		let scorer = ProbabilisticScorer::new(params, &network_graph);
-		assert_eq!(scorer.channel_penalty_msat(42, 512_000, 1_024_000, &source, &target), 151_190);
+		assert_eq!(scorer.channel_penalty_msat(42, 512_000, 1_024_000, &source, &target), 837);
 	}
 
 	#[test]