From 869691f3a372ad918d734773426a5d0701dfe6ef Mon Sep 17 00:00:00 2001
From: David Anderson <davea@ssl.berkeley.edu>
Date: Fri, 11 Jan 2008 04:34:34 +0000
Subject: [PATCH] - fix longstanding bug in CPU throttling

svn path=/trunk/boinc/; revision=14530
---
 checkin_notes     |  6 ++++++
 client/cs_prefs.C | 18 ++++++++----------
 2 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/checkin_notes b/checkin_notes
index 692df5f8bf..5300d6d95e 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -308,3 +308,9 @@ Charlie Jan 10 2008
         boinc.xcodeproj/
             project.pbxproj
         BuildMacBOINC.sh
+
+David  Jan 10 2008
+    - Fix long-standing bug in CPU throttling
+
+    client/
+        cs_prefs.C
diff --git a/client/cs_prefs.C b/client/cs_prefs.C
index 7d76918690..2c4ae03b43 100644
--- a/client/cs_prefs.C
+++ b/client/cs_prefs.C
@@ -146,18 +146,16 @@ int CLIENT_STATE::check_suspend_processing() {
 
     if (global_prefs.cpu_usage_limit != 100) {
         static double last_time=0, debt=0;
-        if (last_time) {
-            double diff = now - last_time;
-            if (diff >= POLL_INTERVAL/2. && diff < POLL_INTERVAL*10.) {
-                debt += diff*global_prefs.cpu_usage_limit/100;
-                if (debt < 0) {
-                    return SUSPEND_REASON_CPU_USAGE_LIMIT;
-                } else {
-                    debt -= diff;
-                }
+        double diff = now - last_time;
+        last_time = now;
+        if (diff >= POLL_INTERVAL/2. && diff < POLL_INTERVAL*10.) {
+            debt += diff*global_prefs.cpu_usage_limit/100;
+            if (debt < 0) {
+                return SUSPEND_REASON_CPU_USAGE_LIMIT;
+            } else {
+                debt -= diff;
             }
         }
-        last_time = now;
     }
     return 0;
 }