From da06a348d084f81f85676bc190966e2d26c102d5 Mon Sep 17 00:00:00 2001
From: Con Kolivas <kernel@kolivas.org>
Date: Thu, 28 Jul 2011 10:03:31 +1000
Subject: [PATCH] The work length in the miner thread gets smaller but doesn't
 get bigger if it's under 1 second. This could end up leading to CPU
 under-utilisation and lower and lower hash rates. Fix it by increasing work
 length if it drops under 1 second.

---
 main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 9dc3c1fc..7c92cdf1 100644
--- a/main.c
+++ b/main.c
@@ -2715,7 +2715,9 @@ static void *miner_thread(void *userdata)
 		if (diff.tv_sec && diff.tv_sec != cycle) {
 			max64 = work.blk.nonce +
 				((uint64_t)hashes_done * cycle) / diff.tv_sec;
-		} else
+		} else if (!diff.tv_sec)
+			max64 = work.blk.nonce + (hashes_done * 2);
+		else
 			max64 = work.blk.nonce + hashes_done;
 		if (max64 > 0xfffffffaULL)
 			max64 = 0xfffffffaULL;