From 665efc9ecc82217bfa2f07e645ee8022f5e45387 Mon Sep 17 00:00:00 2001
From: Alan Westbrook <voidref@gmail.com>
Date: Wed, 29 Jan 2014 00:17:29 -0800
Subject: [PATCH] Change the lookup span modulo constant to something smaller

Why? Not really sure, but whatever.
---
 src/rpcmining.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index 4cf5e58fc..cc78db76e 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -12,6 +12,8 @@
 using namespace json_spirit;
 using namespace std;
 
+static const int kLookupSpanMod = 240;
+
 // Return average network hashes per second based on the last 'lookup' blocks,
 // or from the last difficulty change if 'lookup' is nonpositive.
 // If 'height' is nonnegative, compute the estimate at the time when a given block was found.
@@ -26,7 +28,7 @@ Value GetNetworkHashPS(int lookup, int height) {
 
     // If lookup is -1, then use blocks since last difficulty change.
     if (lookup <= 0)
-        lookup = pb->nHeight % 2016 + 1;
+        lookup = pb->nHeight % kLookupSpanMod + 1;
 
     // If lookup is larger than chain, then set it to chain length.
     if (lookup > pb->nHeight)